A system for simultaneous control of a subset of nodes in a wireless network includes a network controller and a plurality of nodes that are communicatively coupled to the network controller. The network controller transmits a custom Zigbee unicast message to a node of the subset of nodes that is assigned as a point guard node upon receiving an instruction to control one or more nodes of the subset of nodes. The point guard node receives the custom Zigbee unicast message and generates an InterPAN broadcast message based on a payload of the custom Zigbee unicast message. The point guard node broadcasts the InterPAN broadcast message as a one hop broadcast message to all the nodes in the radio range of the point guard node. The receiving nodes whose identifiers are present in the payload of the InterPAN broadcast message act on the instruction to change a status thereof.
H04L 29/06 - Communication control; Communication processing characterised by a protocol
H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
H04W 12/00 - Security arrangements; Authentication; Protecting privacy or anonymity
An electrical system can include a power supply coupled to an electrical load, where the power supply includes an AC/DC converter and a number of DC/DC converters, where the AC/DC converter provides raw DC power to the DC/DC converters, where the DC/DC converters receive the raw DC power and generate final DC power for the electrical load. The electrical system can also include a controller coupled to the power supply, where the controller selectively enables and disables the DC/DC converters.
An electromagnetic component assembly (150) includes a first magnetic core piece (154), a second magnetic core piece (156), and an inverted U-shaped conductive winding (160) including a base section (190) and first and second legs (192,194) extending from base section (190). One of the first and second magnetic core pieces (154,156) is configured to receive the base section (190). The first and second magnetic core pieces (154,156) are gapped from one another to define a first gap (158), and one of the first and second magnetic core pieces (154,156) includes a second gap (200,202) that, in combination with the first gap (158), allows the component to be operated at more than one stable open circuit inductance (OCL) corresponding to different current loads.
An optical system includes an optic and a reflector. The optic has a rear surface with a cavity configured to receive light from a light source and a front surface opposite the rear surface, the front surface configured to emit light processed by the optic and the front surface including a centrally disposed convex region. The front surface and the rear surface of the optic meet at a rim that extends peripherally with respect to the cavity. The reflector is disposed adjacent the optic and comprises a light-receiving end adjoining the rim, a light-emitting end, and a tapered region that extends between the light-receiving end and the light-emitting end.
A device can include multiple light loads, where each light load includes at least one light source. The device can also include multiple switches coupled to the light loads. The device can further include a controller coupled to the switches, where the controller actively operates the switches multiple times within each cycle to control delivery of power to the light loads. Active operation of the switches by the controller is performed on a dynamic schedule, where the dynamic schedule is based on multiple environmental conditions, and where the controller bypasses a forward voltage of the light loads when actively operating the switches.
A system includes an electrical apparatus configured to monitor or control one or more aspects of an electrical power distribution network; and a control system including more than one electronic processor, where the electronic processors are configured to cause the control system to interact with the electrical apparatus, an interaction between the control system and the electrical apparatus including one or more of the control system providing information to the electrical apparatus and the control system receiving information from the electrical apparatus, and if some of the electronic processors are unable to cause the control system to interact with the electrical apparatus, at least one of the other electronic processors is able to cause the control system to interact with the apparatus.
An enclosure disposed in an ambient environment can include at least one wall that forms a cavity. The enclosure can also include at least one electrical device disposed within the cavity. The enclosure can further include at least one illuminated viewing system disposed in the at least one wall. The at least one illuminated viewing system can include a window disposed in the at least one wall. The at least one illuminated viewing system can also include at least one light source assembly that directs light within the cavity in which the at least one electrical device is disposed.
A lighting system can include a light fixture located in a hazardous environment, wherein the light fixture comprises a controller. The light fixture can also include a sensor module communicably coupled to the controller of the light fixture, wherein the sensor module comprises a sensor module housing and a sensor disposed within the sensor module housing, wherein the sensor module housing comprises a first coupling feature that couples to a hazardous location enclosure. The hazardous location enclosure and the sensor module, when coupled to each other, can comply with applicable standards for the hazardous environment.
A light fixture can include a housing having at least one wall and a collar limiting feature disposed at a top end of the at least one wall. The light fixture can also include a collar disposed around the at least one wall, where the collar abuts against the collar limiting feature and is rotatable relative to the housing, where the collar includes a first cover coupling feature. The light fixture can further include a cover coupled to the collar, where the cover includes a first collar coupling feature, where the first collar coupling feature couples to the first cover coupling feature of the collar. The housing can be rotatable relative to the collar and the cover when the cover is decoupled from the collar, where the housing can be held in a fixed position relative to the collar and the cover when the cover is coupled to the collar.
A housing for a light fixture includes at least one wall that forms a cavity and a light source housing portion, where the at least one wall includes a thermally-conductive material, where the light source housing portion is configured to receive at least one light source. The housing can also include a wireway disposed between the cavity and the light source housing portion. The housing can further include multiple heat sink fins that extend from an outer surface of the at least one wall. The housing can also include at least one air throughway that exposes at least a portion of the wireway between the at least one wall and the light source housing portion, where the at least one air throughway allows air to pass over the portion of the wireway, where the at least one air throughway is formed independent of the heat sink fins.
The present invention provides for a woven mesh element for an electroacoustic driver enclosure, and to an electroacoustic driver enclosure including such an element, wherein the element comprises a plurality of mesh layers, and wherein the said plurality of layers includes a layer of Dutch weave mesh preferably comprising a layer of Dutch Twill weave mesh, and in particular wherein the element comprises plural layers of cross woven wire mesh and a layer of Dutch weave wire mesh.
An in-line electrical connector includes a potting boot. The potting boot includes longitudinal ribs are spaced apart from one another about a longitudinal axis of a boot body. Internal thread members project radially inward from an interior surface of the boot body relative to the longitudinal axis. The thread members have arcuate lengths extending about the longitudinal axis of the boot body. Each longitudinal rib has an associated one of the internal thread members that radially overlaps an entirety of the width of the longitudinal rib relative to the longitudinal axis of the boot body. An electrical connector threadably mates to the internal thread members of the potting boot. The electrical connector electrically couples to another electrical connector.
H01R 13/207 - Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together by screw-in connection
H01R 4/38 - Clamped connections; Spring connections using a clamping member acted on by screw or nut
H01R 4/56 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another
The present invention provides for an electroacoustic driver for use within an explosion proof loudspeaker or sounder and comprising a housing enclosing a coil of an electromagnet, the coil operatively coupled to an electromagnet core, a diaphragm located outside the housing for generating audible sound waves, a magnetic element located outside the housing and coupled to the diaphragm, wherein the electromagnet core extends through a wall of the housing from inside to outside of the housing to interact with the said magnetic element to cause movement of the diaphragm.
A system for an electrical power distribution network includes a plurality of electrical apparatuses, each electrical apparatus including a mechanical connection and at least one electrical connector; and a single-piece unitary support configured to receive and hold the plurality of electrical apparatuses, the support including: a frame including a plurality of mechanical interfaces, each of the mechanical interfaces configured to receive and hold a mechanical connection of one of the plurality of electrical apparatus; a cover extending from a side of the frame; and a panel integrated with the frame, the panel including a plurality of electrical interfaces, each of the plurality of electrical interfaces configured to couple to an electrical connector of one of the electrical apparatuses, the cover positioned over the panel.
The disclosed concept pertains to thermoplastic composites, e.g., nano-filler-polymer systems, for use in insulating and/or encapsulating an electrical component to provide electrical insulation, and a protective barrier from environmental conditions. The thermoplastic composites include a polymer, e.g., polymer matrix, micro-size and/or nano-size filler(s) and additive(s). The filler(s) is specifically selected with the intent of imparting improved dielectric properties to the thermoplastic composite, as compared to the polymer absent of the filler. The additive(s) impart environmental resistive properties to the thermoplastic composite.
H01B 3/00 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
16.
LOAD CONTROL SYSTEM AND METHOD FOR REGULATING POWER SUPPLY TO A THERMOSTAT
A system for controlling a load control relay (LCR) supplying power to a thermostat of a heating, ventilating, and air conditioning (HVAC) system includes a controller programmed to maximize the amount of time that a load of the HVAC system may receive power. The controller operates by measuring a thermostat delay time of the thermostat and modifying cycle shed and restore times for controlling the LCR based on the measured thermostat delay time. By controlling the LCR according to the modified cycle shed and restore times, the controller compensates for the thermostat delay time, and the load is able to be active for a longer period of time than it otherwise would be when operating under demand-response controls.
G05D 23/19 - Control of temperature characterised by the use of electric means
G05D 23/22 - Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
17.
FUSE MODULE AND FUSIBLE DISCONNECT SWITCH ASSEMBLY THEREFOR
A disconnect switch includes fuse module having a housing, a fuse element unit disposed within the housing, and a pair of terminal blades between which the fuse element unit is electrically connected. Each terminal blade has a pair of connection portions. The fuse element may include dual-elements, and the fuse module may have an ampacity rating of at least 1200A. The fuse module engages a first fusible disconnect switch having a pole terminal and a second fusible disconnect switch having a pole terminal, with a tie bar electrically connecting the pole terminals of the first and second fusible disconnect switches.
H01H 85/042 - General constructions or structure of high voltage fuses, i.e. above 1,000 V
H01H 85/045 - General constructions or structure of low voltage fuses, i.e. below 1,000 V, or of fuses where the applicable voltage is not specified cartridge type
H01H 85/54 - Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
H01H 85/56 - Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers the intermediate or auxiliary part having side contacts for plugging into the base, e.g. bridge-carrier type
18.
AN ARCLESS TAP CHANGER USING GATED SEMICONDUCTOR DEVICES
A voltage regulator includes a tap changer coupled to a voltage source terminal and a voltage load terminal. The voltage regulator also includes a first switch and a first current transformer coupled in series between the voltage load terminal and a first movable contact of the tap changer. The voltage regulator further includes a second switch and a second transformer coupled in series between the voltage load terminal and a second movable contact of the tap changer. A first silicon controlled rectifier and a second silicon controlled rectifier are controlled by a first control circuit and a second control circuit, respectively. The first control circuit and the second control circuit each include a rectifier, a gating switch, and a positive voltage detector.
H02P 13/06 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by rearranging interconnections of windings
19.
SYSTEMS AND METHODS FOR TESTING GROUND FAULT CIRCUIT INTERRUPTER BREAKERS
A testing circuit assembly can include a first variable resistive load configurable for a range of electrical resistances, where the first variable resistive load is configured to couple to at least one first ground fault circuit interrupter (GFCI) breaker and a current source. The testing circuit assembly can also include a first local controller coupled to the first variable resistive load, where the first local controller controls the first variable resistive load to simulate a range of fault currents, corresponding to the range of electrical resistances, flowing to the at least one first GFCI breaker to determine at least one actual trip point of the at least one first GFCI breaker. Each electrical resistance in the range of electrical resistances can correspond to a fault current in the range of fault currents.
G01R 31/327 - Testing of circuit interrupters, switches or circuit-breakers
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
20.
LIGHT FIXTURE WITH FERRORESONANT TRANSFORMER POWER SOURCE
A lighting device includes a ferroresonant transformer that receives an alternating current (AC) power signal and outputs an output power signal. The lighting device further includes a rectifier coupled to the ferroresonant transformer. The rectifier rectifies the output power signal from the ferroresonant transformer and generates a rectified power signal. The lighting device also includes a dc-to-dc converter coupled to the rectifier, wherein the dc-to-dc converter receives the rectified power signal and generates a regulated power signal.
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
H02M 7/02 - Conversion of ac power input into dc power output without possibility of reversal
G05F 3/06 - Regulating voltage or current wherein the variable is ac using combinations of saturated and unsaturated inductive devices, e g. combined with resonant circuit
The present invention provides for an electronic isolator device for application in intrinsically safe environments having isolation and safety functionality and comprising: an isolator module (101), a safety module (100), and wherein the isolator module is arranged for removable physical/electrical connection to the safety module in at least two orientations/configurations (DO, Dl, Al, AO) relative to the safety module, wherein the electrical connection to the safety module in each of the at least two orientations/configurations serves to configure the electrical functionality of the safety module (100).
H02H 9/00 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
G06F 1/28 - Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
H01R 13/434 - Securing in a demountable manner by locking means on resilient contact members by separate resilient locking means on contact member, e.g. retainer collar or ring around contact member
The present invention provides for an electronic barrier device, which can form part of a further device such as an isolating barrier or a zener barrier, and comprising a voltage limiter such as at least one zener device for voltage limitation in a circuit during a fault condition, the barrier device including a crowbar device arranged to latch across the at least one zener device to reduce power dissipation in the at least one zener device in the circuit fault condition, wherein the crowbar device is arranged to latch responsive to a change in a current sensed in the barrier device.
The present invention provides for a PCB transformer comprising a core and planar PCB winding, wherein the core has two legs extending from a table portion, and wherein a planar PCB winding extends around each of the said legs, and wherein the outer dimensions of the table portion in regions overlying the planar PCB windings match substantially the outer dimension of the planar PCB winding so as to achieve particularly efficient coupling between the winding and the core.
The present invention provides for an electronic isolator device such as a universal isolator and having isolation and possible safety functionality and comprising an isolator module (550), and a base module (500), and wherein the isolator module is arranged for removable physical/electrical connection to the base module and in at least two orientations/positions relative to the base module, wherein electrical connection to the base module in each of the at least two orientations/positions serves to configure the type/functionality of the isolator device.
The present invention provides for an electronic functional device such as an isolator and arranged to offer configurable functionality for alteration of the function of the device, the device including wireless reception means for receiving wireless configuration data for the selective configuration of the device, and can also include wireless transmission means for the wireless transmission of data identifying its configured state.
An energy harvesting system cars include an electrical conductor through which primary power flows. The system can also include an instrument transformer disposed around the electrical conductor, where the instrument transformer includes a secondary inductor,, where the instrument transformer creates a first trans formed power through the secondary inductor using die first power. The system can also include at least one timing capacitor electrically coupled in parallel to the secondary inductor. The system can further include at least one switch coupled in series with the at least one timing capacitor, where the at least one switch has an open position and a closed position. The system can also include an electrical load electrically coupled to the secondary inductor and the at least one switch, where the at least one tuning capacitor modifies the first transformed power when the at least one switch is in the closed position.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
H02J 50/05 - Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
A light fixture can include at least one light source, and at least one power supply that receives primary power, where the at least one power source generates final power using the primary power, where the at least one power supply delivers the final power to the at least one light source. The light fixture can also include a controller coupled to the at least one power supply, where the controller detects an adverse event, and where the controller controls the at least one power supply to provide the final power to the at least one light source during the adverse event.
A power distribution module (PDM) can include an input portion configured to receive high-voltage (HV) power from a power source. The PDM can also include a power transfer device electrically coupled to the input portion, where the power transfer device is configured to generate at least one low-voltage signal using the HV power. The PDM can further include an output section electrically coupled to the power transfer device and including a number of output channels. The PDM can also include at least one switch disposed between the output section and the power transfer device, where the at least one switch has an open position and a closed position. The PDM can further include a controller communicably coupled to the at least one switch, where the controller operates the at least one switch between the closed position and the open position based on a power demand measured at the output section.
H02J 3/02 - Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of ac power and of dc power
29.
POTTING COMPOUND CHAMBER DESIGNS FOR ELECTRICAL CONNECTORS
An electrical chamber can include at least one wall forming a cavity, where the at least one wall includes a first end and a wall inner surface. The electrical chamber can also include a first isolation zone disposed on the inner surface at a first distance from the first end, where the first isolation zone is formed by a first proximal wall, a first distal wall, and a first isolation zone inner surface disposed between and adjacent to the first proximal wall and the first distal wall, where the first proximal wall forms a first angle with the first isolation zone inner surface, where the first distal wall forms a second angle with the first isolation zone inner surface, where the first angle is non-perpendicular. The cavity is configured to receive at least one electrical conductor. The cavity and the first isolation zone are configured to receive a potting compound.
A light fixture is disclosed herein. The light fixture can include a power supply and at least one light source coupled to the power supply. The light fixture can also include a local controller coupled to the power supply, where the local controller sends at least one first signal to the power supply to control the power supply, where controlling the power supply controls a light output of the at least one light source.
A system for monitoring one or more aspects of a fuse tube assembly (22) of a fuse cutout (12) comprises: a housing (102) structured to be disposed adjacent to, and coupled to the fuse tube assembly (22); a power source (120) disposed in the housing (102); a processing unit (122) disposed in the housing (102) and electrically coupled to the power source (120); and a motion detecting unit (126) disposed in the housing (102) and electrically coupled to the processing unit (122), the motion detecting unit (126) being structured to detect one or both of position or movement of the housing (102).
A housing for a gas sensor module is described herein. The housing can include an outer portion and an inner portion disposed within the outer portion. The outer portion can include at least one wall forming a first cavity. The outer portion can also include an inlet tube coupling feature disposed at a first location in the at least one first wall, and an outlet tube coupling feature disposed in a second location in the at least one first wall. The inner portion can include at least one second wall forming a second cavity, and a distribution channel coupling feature disposed at a third location in the at least one second wall. The inner portion can also include a receiving channel coupling feature disposed in a fourth location and a tuning fork coupling feature disposed at a fifth location in the at least one second wall.
A housing for a gas sensor module is described herein. The housing can include a first portion and a second portion. The first portion can include at least one wall forming a cavity having a first cavity portion and a second cavity portion. The first portion can also include an inlet tube coupling feature and a distribution channel disposed adjacent to the first cavity portion. The first portion can further include an outlet tube coupling feature and a receiving channel disposed adjacent to the second cavity portion. The second portion can include a tuning fork coupling feature disposed adjacent to the second cavity.
A cap for a gas sensor module is described herein. The cap can include at least one wall forming a cavity having a first portion and a second portion. The cap can also include an inlet tube coupling feature disposed in the at least one wall, where the first location is adjacent to the first portion of the cavity. The cap can further include an outlet tube coupling feature disposed in the at least one wall, where the second location is adjacent to the second portion of the cavity. The cap can also include a distribution channel coupling feature disposed in the at least one wall, where the third location is adjacent to the first portion of the cavity. The cap can further include a receiving channel coupling feature disposed in the at least one wall, where the fourth location is adjacent to the second portion of the cavity.
A module for a gas sensor module is described herein. The module can include a first portion. The first portion of the module can include a first body and at least one first micro-resonator coupling feature disposed in and traversing the first body. The first body can be configured to be disposed within a cavity of a housing of the gas sensor. The at least one first micro-resonator coupling feature can be configured to align with at least one optical device of the gas sensor when the first body is disposed within the cavity of housing of the gas sensor. The at least one first micro-resonator coupling feature can be configured to have at least one first micro-resonator disposed therein.
Electrical current sensing and monitoring methods include connecting a compensation circuit across a conductor having a non-linear resistance such as a fuse element. The compensation circuit injects a current or voltage to the conductor that allows the resistance of the conductor to be determined. The current flowing in the conductor can be calculated based on a sensed voltage across the conductor once the resistance of the conductor has been determined.
A luminaire includes a body including a compartment and a bezel rim along at least two sides of the body. The luminaire also includes a light emitting diode (LED) circuit board arranged in the compartment and a power input. The LED circuit board includes a driving circuit and a light emitting circuit. The power input is configured to supply power to the driving circuit. The driving circuit is configured to convert the supplied power to a converted power and to provide the converted power to the light emitting circuit. The light emitting circuit is configured to generate light with the converted power. A luminaire including an outermost dimension of less than about two inches is also provided.
F21K 99/00 - Subject matter not provided for in other groups of this subclass
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21V 23/02 - Arrangement of electric circuit elements in or on lighting devices the elements being transformers or impedances
38.
MAGNETICS-FREE LED LIGHT ENGINE WITH HIGH PERFORMANCE AND LOW PROFILE DESIGN
A light emitting diode (LED) light engine includes an LED circuit board including a light emitting circuit. The LED light engine also includes a driver circuit configured to drive a plurality of LEDs arranged in the light emitting circuit. The driver circuit does not include components with a magnetic field for the purpose of power conversion. An LED light engine including an outermost dimension of less than about one inch is also provided.
A light emitting diode (LED) circuit board includes a power input configured to supply power, a driving circuit configured to convert power, and a light emitting circuit configured to generate light. The power input is configured to supply power to the driving circuit. The driving circuit is configured to provide proper power to the light emitting circuit. The light emitting circuit is configured to generate light with the power provided by the driving circuit. An LED circuit board including a driving circuit, a light emitting circuit, and a plurality of semiconductor switches electrically connected between the driving circuit and the light emitting circuit is also provided. Each of the plurality of semiconductor switches is configured to electrically connect and electrically disconnect power from the driving circuit to the light emitting circuit.
A luminaire includes a body including a lighting compartment and a bezel rim around at least a portion of a perimeter of the body. The luminaire also includes clamping plates that extend a length of the luminaire. As the clamping plates are secured in a lighting compartment of the luminaire, they provide a clamping force to secure an LED circuit board in the lighting compartment. A base of the lighting compartment may also serve as a heatsink for the LED circuit board. A low-profile luminaire according to such features is also provided.
A lighting fixture includes a housing bracket and pair of side rails, each side rail located adjacent opposite sides of the housing bracket. Further, the lighting fixture includes a light guide that is oriented horizontally and securely retained by the pair of side rails. Furthermore, the lighting fixture includes a plurality of light sources that are disposed on or within a cavity defined by at least one of the side rails such that the plurality of light sources are positioned in close proximity to and along an edge of the light guide. The light guide receives light emitted by the plurality of light sources through the edge of the light guide and emits the light through a major surface of the light guide. Further, the lighting fixture includes an end plate and an end cap disposed on each lateral end of the lighting fixture.
A joiner system for a channel raceway includes a joiner body with first and second posts, and a joiner wall panel separate from the joiner body. The joiner wall panel connects to the joiner body between the first and second posts to form a wall between the first and second posts. First and second connecting projections extend outward from adjacent the respective first and second posts. The first and second connecting projections are spaced apart from one another and in generally opposing relationship with respect to one another. The joiner body has a snap-fit component on the lower side of a base of the joiner body. The snap-fit component mates in a snap-fit connection with a splice plate to interconnect the joiner body and at least two pieces of channel framing.
H02G 3/02 - Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles - Details
H02G 3/04 - Protective tubing or conduits, e.g. cable ladders or cable troughs
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution box; Ensuring electrical continuity in the joint
H02G 3/08 - Distribution boxes; Connection or junction boxes
43.
INTEGRATION OF SENSOR COMPONENTS WITH LIGHT FIXTURES IN HAZARDOUS ENVIRONMENTS
A light fixture located in a hazardous environment is described herein. The light fixture can include a housing having at least one wall that forms a cavity, where the housing meets applicable standards for the hazardous environment. The light fixture can also include a sensor assembly disposed within the cavity, where the sensor assembly includes a sensor power supply configured to generate power for an intrinsically safe sensor disposed outside the housing in the hazardous environment and a sensor control module configured to provide control for the intrinsically safe sensor. The light fixture can further include at least one light fixture component disposed within the housing.
A linear light fixture is provided which includes a housing body onto which a bezel is attached. Semiconductor LEDs or other light emitting source that produce light when electrically powered are located behind a lens that is secured to the housing body by the bezel. One or more incandescent light bulbs that include an electric filament that produce light when electrified as well as one or more fluorescent bulbs that produce light based at least in part on the electrification and illumination of a plasma or gas can also be used as a source of illumination. For example, the linear light fixture can further include a driver housing that includes a driver housing cover to permit access to at least one driver and/or battery backup components located within the driver housing. There is also at least one window in the bezel which permits illumination of an area or object.
A power supply and circuitry system for powering HVPT devices includes a power supply circuit that selectively provides an operating power and a simmer power to multiple HVPT devices. The system also includes a trigger circuit for each respective HVPT device that selectively couples the power supply circuit to one HVPT device to provide the operating power thereto. The system also includes a simmer control circuit for selectively coupling the power supply circuit to the HVPT devices to provide the simmer power thereto, the simmer control circuit further including a simmer switch circuit for each HVPT device, wherein each simmer switch circuit comprises an input coupled to the power supply circuit to receive the simmer power therefrom and an output coupled to one HVPT device. The simmer control circuit also further includes a simmer drive circuit coupled to each simmer switch circuit for selectively enabling the simmer switch circuits.
A61B 18/20 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
46.
ELECTROMAGNETIC ACTUATOR WITH REDUCED PERFORMANCE VARIATION
An electromagnetic actuator includes a housing and a bobbin positioned within the housing and secured relative thereto so as to be centered therein, the bobbin comprising a bobbin formed of a non-magnetic material. The electromagnetic actuator also includes a coil wound about the bobbin and a magnetic circuit comprising a plurality of actuator components positioned within the housing and on or adjacent to the bobbin. The actuator components include a permanent magnet that induces a magnetic flux flow through the magnetic circuit so as to generate a magnetic force, and an armature selectively movable within an opening formed through the bobbin responsive to the magnetic force and to current selectively provided to the coil. The bobbin locates and centers the components of the magnetic circuit about the central axis and provides a bearing surface for the armature as it moves within the opening formed through the bobbin.
An optic can manage light emitted by a light emitting diode. The optic can comprise a backside that faces the light emitting diode and a front side opposite the backside. The front side can be convex. The backside can have a central region that is adjacent the light emitting diode and that is either concave or convex. One or more grooves can extend peripherally about the central region. An injection molding system can produce optics in which the backside comprises the concave central region as well as optics in which the backside comprises the convex central region. The molding system can utilize one molding member shaped according to the front side of the optic. That molding member can be compatible with two other molding members that are shaped according to the different backsides of the optic. Thus, two different optic forms can be produced with three molding members.
B29C 39/10 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
48.
SELF-LEARNING AUTO-CUTOFF DAYLIGHT DETECTION CONTROL FOR LIGHT FIXTURES
A light fixture can include at least one light fixture component comprising at least one light source that emits a first level of fixture light. The light fixture can also include at least one sensor that measures a first total light amount at a first time of a first day, where the first total light amount includes the first level of fixture light and a first natural light amount. The light fixture can further include a controller coupled to the at least one sensor and the at least one light fixture component, where the controller controls and communicates with at least one sensor. The controller can further control the at least one light fixture component based on the first total light amount measured by the at least one sensor at the first time of the first day.
A system can comprise tabs and notches or a twist-and-lock mount for detachably mounting components adjacent a light emitting diode that is utilized for illumination, for example in a luminaire. Representative mounted components can include protective covers and optics for managing light emitted by the light emitting diode. The tabs and notches can be located rear of an aperture in a recessed lighting fixture or in a cover of a luminaire, for example. That cover, or another cover that may not utilize a releasable mount, can extend circumferentially about a periphery of a light emitting diode to cover and protect wiring for the light emitting diode and to hide the wiring from view by people occupying an illuminated space.
A light fixture assembly includes a light fixture and one or more reflectors having a curved cross-sectional profile. The light fixture includes a housing that is configured to house one or more electrical components of the light fixture. Further, the light fixture includes a heat sink that is coupled to the housing, and a plurality of light sources coupled to a bottom surface of the heat sink such that they emit light in a first direction. At least one of the one or more reflectors is coupled to the heat sink and disposed in the first direction of at least a portion of the plurality LEDs such that the light emitted by the portion of the plurality of LEDs is reflected by a substantially concave shaped inner surface of the respective reflector towards a second direction that is substantially opposite to the first direction.
A lighting device includes a heat sink and a swivel band having a groove around an outer surface of the swivel band. The lighting device further includes a light source attached to the heat sink. The light source is oriented to emit light through an area surrounding by the swivel band. The lighting device also includes a tilt bracket attached to the heat sink and to the swivel band. The heat sink and the heat sink are tiltable relative to a vertical axis.
The present invention provides for an improved network bus terminator (4), and related bus networks and bus network segments/trunks (1 ), and comprising a bus network terminator (4) including bus network termination functionality and a diagnostic analyser (2) and wherein the degree of diagnostic functionality provided within the terminator (4) can then, as with the terminator itself, be provided as an inherent feature of the segment/trunk (1 ), and thus also the bus network, and can comprise limited, simple but suitably effective diagnostic functionality, and which can be inherently suited to bus analysis during a commissioning, and/or initial deployment, phase and be provided in a cost-effective manner.
A stud mounting bracket for a junction box includes a mounting extension extending outward from a longitudinal end margin of a main body. The mounting extension includes a mounting body connected to the longitudinal end margin of the main body and an extension tab connected to the mounting body. The extension tab is pivotable relative to the mounting body about an axis from a compact configuration to an extended configuration to increase the length of the mounting extension. A box mounting bracket for mounting a junction box on a stud mounting bracket includes first and second jaws. The first and second jaws engage the stud mounting bracket for use in attaching the box mounting bracket to the stud mounting bracket. The first and second jaws are resiliently deflectable both relative to the base and independent of one another when attaching the box mounting bracket to the stud mounting bracket.
F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
H02B 1/40 - Wall-mounted casings; Parts thereof or accessories therefor
A power distribution module for a distributed low voltage power system can include at least one input channel configured to receive line voltage power from at least one power source. The power distribution module can also include at least one receiving feature electrically coupled to the at least one input channel, where the at least one receiving feature is configured to receive at least one replaceable circuit module. The power distribution module can further include at least one output channel electrically coupled to the at least one receiving feature, where the at least one output channel is configured to send a final low voltage (LV) signal to at least one LV device.
H02J 11/00 - Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
H02J 3/02 - Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of ac power and of dc power
A hybrid distributed low voltage power system can include a first primary power source that distributes line voltage power during a first mode of operation. The system can also include a first secondary power source that receives an input signal during the first mode of operation and distributes a reserve signal during the second mode of operation, where the reserve signal is generated from the input signal. The system can further include a PDM coupled to the first primary power source and the first secondary power source. The system can also include at least one first LV device coupled to the first output channel of the PDM, where the at least one LV device operates using the first LV signal during the first mode of operation, and where the at least one first LV device receives a reserve LV signal during the second mode of operation.
A system for diagnosing integrity of an electrical conductor-carrying system is described herein. The system can include an electrical conductor-carrying network having a number of electrical conductor-carrying devices mechanically coupled to each other, wherein at least a portion of the electrical conductor-carrying network is made of electrically conductive material. The system can also include a number of sensor modules coupled to the electrical conductor-carrying network. The system can further include a control unit communicably coupled to the sensor modules. The sensor modules can measure at least one impedance in the electrical conductor-carrying devices of the electrical conductor-carrying network.
A voltage sensing circuit includes an amplifier (12) having a first input (16) and an amplifier output, the first input being coupled to a node (20) comprising a virtual ground, and a first impedance element (8, 30) having an input structured to be coupled to the conductor and an output coupled to the first input of the amplifier through the node. The first impedance element is structured to cause a current signal having a current directly proportional to the voltage on the conductor and a substantially zero volt voltage to be provided to the first input of the amplifier through the node responsive to the voltage of the conductor being provided to the input of the first impedance element. The amplifier is structured to cause an output voltage that is directly proportional to the current of the current signal to be provided at the amplifier output.
A modular wireless lighting control device includes a wireless interface device that includes a wireless transceiver, a first controller, and a power supply. The wireless transceiver is in electrical communication with the first controller. The wireless interface device receives lighting control instructions wirelessly via the wireless transceiver. The modular wireless lighting control device further includes a lighting control device in electrical communication with the wireless communication device. The lighting control device includes a second controller and control interface circuitry. The control interface circuitry is compatible with a light fixture.
In one example, an illumination assembly includes a light fixture having a housing and at least one protrusion extending outward from the housing. The illumination assembly further includes a base having a corresponding at least one keyed opening. The at least one protrusion is configured to engage the corresponding at least one keyed opening to attach the light fixture to the base. In another example, an illumination assembly includes a light fixture having a housing and at least one ring protrusion extending outward from the housing. The illumination assembly further includes a base having a groove configured to receive a housing ring. The at least one ring protrusion is configured to contact the housing ring to attach the light fixture to the base.
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21S 8/00 - Lighting devices intended for fixed installation
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
60.
HIGH VOLTAGE COMPACT FUSE ASSEMBLY WITH MAGNETIC ARC DEFLECTION
Fuse assemblies in the form of fuse blocks and fuse holders include embedded permanent magnet arc suppression features that facilitated higher voltage operation of fusible circuit protection without increasing the size of the fuse assemblies. The embedded magnets apply an extemal magnetic field upon an overcurrent protection fuse and produce an arc deflection force to enhance arc quenching capability of the fuse without increasing its form factor.
H01H 85/38 - Means for extinguishing or suppressing arc
H01H 85/20 - Bases for supporting the fuse; Separate parts thereof
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive - Details
61.
HIGH CURRENT SWING-TYPE INDUCTOR AND METHODS OF FABRICATION
A surface mount swing-type inductor component is configured to establish a non-uniform gap when assembled. The non-uniform gap produces swing-type inductor functionality in a compact package for higher current applications while being manufacturable at relatively low cost.
A subminiature fuse includes a cap filled with a fluid arc extinguishing composition paste that, when assembled with a base and fuse element, coats the fuse element and provides a protective, arc extinguishing coating that improves reliability and increases a current interrupting capability of the fuse.
A light fixture is provided with a heating element. The heating element can be a resistive heating element, such as a Nichrome wire, and resides in grooves of a cover (e.g., a glass globe) of the light fixture. Thus, the heating element acts to directly heat the cover of the light fixture to prevent, decrease, or otherwise correct frosting, freezing, and other elemental effects on the cover when it is exposed to the environment. The heating element is capable of raising the temperature of the cover at least 15°C from an initial temperature of -20°C in 30 minutes. A heat sensing element may provide feedback regarding the temperature of the cover for controlling power supplied to the heating element.
F21V 3/04 - Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
H05B 3/12 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
F21W 111/06 - Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in groups for aircraft runways or the like
64.
HIGH VOLTAGE COMPACT FUSIBLE DISCONNECT SWITCH DEVICE WITH MAGNETIC ARC DEFLECTION ASSEMBLY
A compact fusible disconnect switch device includes a magnetic arc deflection assembly including at least a pair of magnets disposed about a switch contact assembly. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. Multiple pairs of magnets may apply magnetic fields in directions opposing one another to deflect magnetic arcs in different directions at more than one location in the switch contact assembly to facilitate high voltage DC operation.
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive - Details
65.
MULTI-LAYER DIELECTRIC FILM WITH NANOSTRUCTURED BLOCK COPOLYMER
The disclosed concept relates to multi-layer dielectric film with nano- or micro-structured block copolymers, such as, but not limited to, di-block copolymers and tri-block copolymers, and, more particularly, to capacitors constructed from the film. More particularly, the disclosed concept provides the ability to tune or control one or more characteristics of the dielectric film and capacitors formed therefrom, by selecting and combining blocks that exhibit different electrical and/or mechanical properties.
An enclosure for an electrical apparatus includes a tank having a bank of corrugate affixed to one or more walls thereof, with the bank of corrugate including a plurality of cooling fins in fluid communication with a volume of the tank via a plurality of openings formed in the walls, such that cooling fluid can flow into the cooling fins. A cross member is affixed to the bank of corrugate along each of a top surface and a bottom surface thereof and extends along a length of the corrugate at a distal end of the cooling fins. Vibration stabilizers are provided to control vibrations in the corrugate bank, with the vibration stabilizer having a gusset plate joined to the cross member and extending between a pair of adjacent cooling fins and stabilizer with a first end attached to the tank and a second end attached to the gusset plate.
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
F28F 1/12 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
67.
POWER FUSE AND FABRICATION METHODS WITH ENHANCED ARC MITIGATION AND THERMAL MANAGEMENT
Power fuses having filler material including hydrated zeolite material (170) and quartz sand (172) facilitates increasing power density of electrical fuses in reduced package sizes. The hydrated zeolite material releases water to cool and suppress electrical arcing conditions experienced in higher power circuitry. The fuse element (158) is formed as a planar strip (160) with apertures (162) defining areas (162) of reduced cross-section which act as weak spots to faciliate arc division.
The present disclosure provides an uninterruptible constant current regulator circuit capable of receiving power from a primary power source and a secondary power source, and switches between the two according to the condition of the provided power. Specifically, the uninterruptible constant current regulator provides a first voltage from the primary source to a load until the first voltage falls below a threshold value, at which point the uninterruptible constant current regulator automatically switches to provide a second voltage from the secondary source to the load.
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
H02M 7/155 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
An insertable electrical contact is disclosed herein. The insertable electrical contact can include a body having a connector end, a conductor receiver end, and a middle portion disposed between the connector end and the conductor receiver end. The insertable electrical contact can also include at least one retractable drive pin disposed in the body, where the at least one retractable drive pin has a normal position and a retracted position, where the at least one retractable drive pin is disposed within the body when in the retracted position, and where the at least one retractable drive pin is protrudes from an outer surface of the body when in the normal position. The at least one retractable drive pin can be in the retracted position as the body is inserted into a connector sleeve and can revert to the normal position when the body is positioned within the connector sleeve.
H01R 13/15 - Pins, blades or sockets having separate spring member for producing or increasing contact pressure
H01R 13/62 - Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
H01H 1/34 - Contacts characterised by the manner in which co-operating contacts engage by abutting with provision for adjusting position of contact relative to its co-operating contact
70.
ELECTRONIC DEVICE INCLUDING LIGHT DETECTION CIRCUIT
An electronic device (20) including a component (38, 40) and a light circuit (34, 34') structured to detect light. The light circuit is structured to output a detection signal in response to detecting light and the detection signal is used to wake up or communicate with the component.
An energy storage device heating system (1,1') includes an energy storage device (60), a power supply (20) structured to generate a source of harvested energy (26) by harvesting energy from a power source (10), a heater (70,70') disposed proximate to the energy storage device and structured to use the harvested energy to generate heat, a charging unit (50) structured to use the harvested energy to charge the energy storage device, a selection circuit (30) structured to selectively electrically connect the source of harvested energy to the charging unit or the heater, and a control unit (40) including a selection control module (42) structured to control the selection circuit to switch between electrically connecting the source of harvested energy to the charging unit and electrically connecting the source of harvested energy to the heater.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
A system and method for testing of electrical connections, conductors, and loads prior to energizing those connections is disclosed. For example, an interlocking socket can comprise a receptacle designed to be coupled to a connector of a load. The interlocking socket can comprise a microprocessor coupled to the receptacle, the microcontroller operable for testing one or more faults in the connector, a conductor, or the load coupled to the connector. In another example, a microprocessor can be coupled to a switch comprising a conductor, where the microprocessor is operable for testing one or more faults in the conductor or a load coupled to the conductor.
A switching apparatus (4) is structured to be electrically connected with a circuit and includes a housing (8) and a switch assembly (12). The switch assembly includes a toggle switch (28), a slider switch (30), and a toggle housing (32), with the toggle housing including at least a first wall (36) having an abutment (56) and a ledge (58), and with the ledge being situated relatively closer to the housing than the abutment. The slider switch includes a slider element (52) that is situated at a location spaced from the housing and disposed generally between the abutment and the ledge. The abutment is structured to resist unintended engagement of the slider element when the toggle switch is being moved between a first orientation and a second orientation.
H01H 15/24 - Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch having a single operating part only protruding from one side of the switch casing for alternate pushing and pulling
Systems and methods for performing predictive frequency searches in ad hoc multi-hop wireless networks is described herein. In one exemplary embodiment, a predicted frequency is selected and a synchronization request is sent from an initiating node to a target node on the predicted frequency. If the transmitted synchronization request is the last synchronization request for the predictive frequency search mode sequence, then the initiating node enters into a receiving mode to receive a synchronization response message from the target node. If not, the initiating node selects a new predicted frequency, and sends a new synchronization request to the target node on that frequency. This repeats until the transmitted synchronization request is the last predictive synchronization request, and the initiating node enters into the receiving mode. The initiating node in the selection of synchronization request transmission frequencies can adaptively alternate between predictive and full spectrum frequency searches.
A fuse assembly includes a housing comprising a first compartment and a second compartment. The fuse assembly also includes a fuse holder movable between a closed position and an open position relative to the housing. A fuse can be removed when the fuse holder is in the open position, and the fuse is inaccessible when the fuse holder is in the closed position. The fuse assembly also includes a first connector comprising a first fuse contact disposed at one end and a first wire coupler disposed at an opposite end. The first connector is slidable between an engaged position and a disengaged position within the first compartment. The connector is electrically coupled to the fuse in the engaged position and electrically decoupled in the disengaged position. The first connector locks the fuse holder in the closed position when the first connector is in the engaged position.
H01H 85/12 - Two or more separate fusible members in parallel
H01H 85/22 - Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
An interconnect for an installation environment (300) adapted for housing at least one electrical component (100) having a number of first connectors (101) each having a first configuration, wherein the installation environment has pre-installed wiring (800) having a number of second connectors (203) each having a second configuration. The interconnect includes a backplane component (200) including a number of third connectors (201) adapted to connect with the number of first connectors, and a number of fourth connectors (202) adapted to connect with the number of second connectors, wherein each of the number of fourth connectors is coupled to a respective one of the number of third connectors in a manner that maps the second configuration to the first configuration, and includes a mechanical bracket component (500) adapted to allow for the installation of at least one electrical component such that the first connectors are connected to the third connectors.
A compact fusible disconnect switch device having a reduced switch housing size and increased power density is configured to be face mounted to a panel. A fuse cover assembly allows installation and removal of a fuse without having to open the panel. Line-side and load-side terminals are provided on a common side of the housing. In-line mechanical ganging and simultaneous application is provided for combinations of the compact fusible disconnect switch devices.
In one aspect, a fitting for connecting first and second pieces of strut to one another, wherein each piece of strut includes an elongate strut body having opposite longitudinal ends, a length extending between the opposite longitudinal ends, and a fitting side defining an external fitting groove extending lengthwise of the body, includes a first clip arm configured to extend into the external fitting groove of the first piece of strut. A second clip arm is configured to extend into the external fitting groove of the second piece of strut. A central portion is connected to and extends between the first and second clip arms. The central portion includes a first dimple configured to receive a tool and a second dimple configured to receive a tool.
A fitting for use with channel framing including an outer surface and a fitting groove formed in the outer surface includes a base comprising an inner face, an outer face, and sides extending between the inner face and outer face. The base is configured for insertion into the fitting groove of the channel framing. A spring member is mounted on the base and disposed generally above the outer face of the base. The spring member is configured to engage the outer surface of the channel framing when the base is inserted into the fitting groove. The base and the spring member form a clamp for securing the fitting in the fitting groove.
A fitting for connecting first and second pieces of strut to one another includes a coupling component. The coupling component has first and second coupling portions configured for reception in respective fitting grooves of the first and second pieces of strut when the coupling component is in a first orientation. Each of the coupling portions are rotatable within the respective fitting grooves from the first orientation to a second orientation to connect the first and second pieces of strut to one another. An anti-rotation plate is connected to the coupling component. The anti-rotation plate has an unlocked position relative to the coupling component to allow the first and second coupling portions to be received in the respective fitting grooves, and a locked position relative to the coupling component to inhibit rotation of each of the first and second coupling portions from the second orientation to the first orientation.
A beam clamp for securing strut to a beam includes a clamp body having a first strut engagement portion configured for engaging a first attachment structure of a strut, and a second strut engagement portion separate from the first strut engagement portion and configured for engaging a second attachment structure of a strut.
A system for accessing industrial lighting fixtures is described. The system may include a telescoping light pole having a light fixture at one end, a base support at an opposite end for securing the light fixture, and an electrical passage through tubular supports of the pole for providing power to the light fixture. The telescoping function of the light fixture may be supported by a biasing member inside the tubular supports. A tool for assisting in the extension and retraction of the fixture is also provided, as well as a mating device for mating the electrical passage with a port of an electrical enclosure.
A housing for a luminaire is disclosed herein. The housing can include a central portion forming a substantially closed shape and having an inner area therewithin, where the central portion is thermally conductive. The central portion can include an upper end and a lower end adjacent to the upper end. The housing can also include a number of fins thermally coupled to and extending inward and outward away from the upper end of the central portion, where the plurality of fins are thermally conductive.
A circuit interrupter including a ground fault circuit interrupter circuit (10) structured to detect a ground fault based on current flowing in line (15) and neutral (16) conductors of the circuit interrupter, a ground fault circuit interrupter monitor circuit (20) structured to perform a self-test on the circuit interrupter to determine the functional status of the ground fault circuit interrupter, and a bridge circuit (30) structured to harvest power from the line and neutral conductors and supply said harvested power to the ground fault circuit interrupter circuit and the ground fault circuit interrupter monitor circuit.
H02H 3/33 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
An isolator protection device can include a housing having at least one wail and a first coupling feature, where the at least one wall forms a cavity, where the first coupling feature is configured to couple to an arrester, and where the at least one wall is configured to house an isolator body of an isolator within the cavity. The isolator protection device can also include a securing device disposed within the cavity, where the securing device is configured to secure a stud of the isolator to the isolator body during normal operating conditions.
H01H 37/76 - Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
An indicator light is disclosed herein. The indicator light can include a housing having at least one wall, where the at least one wall forms a cavity, and where the housing has a first length. The indicator light can also include a light guide disposed within the housing at a distal end of the housing, where the light guide has a second length that is less than the first length. The indicator light can further include a light source disposed adjacent to the light guide. The housing and the light guide can form a flame path therebetween.
A connector spring includes a ring and a plurality of protruding segments protruding radially out from the ring. Each protruding segment of the plurality of protruding segments includes a first spring finger extending out from the protruding segment and a second spring finger extending out from the protruding segment. The first spring finger and the second spring finger angularly extend away from each other on a first side of the ring. The connector spring further includes a plurality of dimples protruding out on a second side of the ring.
Dimming or illumination control of an LED-based lighting fixture can utilize a combination of pulse width modulation and constant current reduction. A light emitting diode driver can implement pulse width modulation to control light over a first light intensity range and constant current reduction over a second light intensity range. The first light intensity range can be less intense than the second light intensity range. Thus, the driver can practice constant current reduction for dimming at higher light intensities and pulse width modulation for dimming at lower light intensities.
A sensor head is described herein. The sensor head can include a first piece, where the first piece can include a body having an outer surface and an inner surface. The first piece can also include a light source cavity disposed in the body at the inner surface. The first piece can further include an optical device cavity disposed in the body at the inner surface. The first piece can also include an ellipsoidal cavity disposed in the body at the inner surface, where the ellipsoidal cavity is disposed adjacent to the optical device cavity. The first piece can further include a receiving device cavity disposed in the body adjacent to the inner surface that forms the ellipsoidal cavity. The first piece can also include at least one channel disposed in the body.
A lighting fixture can comprise a substantially flat sheet of metal (140) supporting a circuit that comprises one or more light emitting diodes (126) with one or more associated optics (125) for manipulating emitted light. The circuit can be attached to, mounted next to, or integrated with the sheet of metal (140). In some examples, a layer of dielectric material adheres to the sheet of metal (140), and circuit elements adhere to the layer of dielectric material. Such circuit elements may comprise electrical traces, light emitting diodes (126), and/or a light emitting diode driver. The sheet of metal (140) can provide a substrate for the circuit or a support for a freestanding circuit board that may be rigid or flexible.
A current-limiting fuse for use at voltages between 23 kilovolts (kV) and 38 kV includes a body including a sidewall that at least partially defines an interior space; a fuse element in the interior space of the body, the fuse element wrapped around a non-conductive core and connected to first and second electrically conductive plates; and a non-bound particulate material in the interior space of the body, the non-bound particulate material including a plurality of pieces of the material with voids between at least some of the pieces. A fuse holder for use at voltages between 23 kV and 38 kV includes a housing for insertion in a sidewall of a transformer. The housing includes an exterior surface that defines an interior region. A fuse assembly is received in the interior region of the housing, the fuse assembly being configured to be replaced without opening the tank of the transformer.
A method of controlling a voltage regulator (10) having a nominal input and a nominal output structured to operate in a forward power mode wherein power flows from the input to the output and a reverse power mode wherein power flows from the output to the input. The method includes sensing current flowing through the voltage regulator (10), determining a direction of power flow through the voltage regulator (10) based on the sensed current, determining a verified direction of power flow through the voltage regulator (10) by altering a voltage between the input and the output and analyzing an effect caused thereby on at least one of a voltage at the input and a voltage at the output, and selecting a voltage regulating scheme for controlling the voltage regulator (10) based on the verified direction of power flow.
G05F 1/14 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
A pipe restraint device is disclosed. The pipe restraint device can include a pipe coupling portion to couple with a pipe to be restrained, and a support member coupling portion to couple with a support member extending from a building structure to support the pipe. The support member coupling portion can have a support member interface and a securing mechanism. The securing mechanism can be configured to exert a force on the support member to cause the support member to bear against the support member interface sufficient to secure the support member to the support member coupling portion.
Systems and methods for storing power from distributed generation systems or other loads and sources that affect line voltage are disclosed. In embodiments, a water heater can be powered in a way that absorbs excess power from the grid by heating water when a controller senses excess power generation in the grid. Excess power generation can be sensed by either an increase in line voltage amplitude above a predetermined standard, or an increase in line voltage frequency above a predetermined standard.
A touch-safe fuse module ( 100 ) includes a built-in slidable handle ( 110 ) movable between extended and retracted positions relating to a housing ( 102 ) of the fuse module. In the extended position, the handle ( 110 ) assists with removal of the fuse from a base housing assembly ( 200 ) by improving mechanical leverage to apply extraction force to the housing( 102 ).Fuse modules having high current ratings may be effectively removed by hand without separately provided tools.
H01H 85/22 - Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
The present disclosure provides a support coupling which provides a frangible point for a lighting fixture, and which prevents water from accumulating at the frangible point and from penetrating an inner chamber of the lighting fixture where electronic components are disposed. In certain example embodiments, the coupling accomplishes this by providing an inner wall and an outer wall, in which the inner wall has a higher grade (i.e., is taller) than the outer wall. A space between the inner wall and the outer wall receives an extension column. Water running down the sides of the extension column is collected in the space and pours out of the coupling over the shorter outer wall before the water reaches the top of the inner wall.
F21V 31/00 - Gas-tight or water-tight arrangements
F21W 111/06 - Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in groups for aircraft runways or the like
97.
HIGH CURRENT, COMPACT FUSIBLE DISCONNECT SWITCH WITH DUAL SLIDER BAR ACTUATOR ASSEMBLY
A high current fusible disconnect switch device (50) includes a switch housing (52) configured to receive a pluggable touch-safe fuse module (54), and a dual slide bar actuator assembly (72) for opening and closing switch contacts. The dual slide bar elements are each coupled to bias elements that store and release energy to affect switch opening and closing operations. The switch opening and closing operation is multi-staged wherein only the first slider element (100) is movable in the first stage, and both the first and second slider elements (102) are movable in the second stage, the fusible disconnect switch device can well meet the demands of high current applications.
[0022] The present disclosure provides a globe clamp with integrated mounting pads which can hold a level while a user adjusts the lighting device to which the globe clamp is coupled. In one example embodiment, the globe clamp includes a clamp body, which includes a top portion, a bottom portion, and an exterior contour. The top portion forms a first internal opening defined by a first inner surface. The bottom portion forms a second internal opening defined by a second inner surface. The exterior contour surrounds the top portion and the bottom portion. The exterior contour comprises at least one recess having a horizontal, flat surface, the recess configured to retain a level.
F21V 21/116 - Fixing lighting devices to arms or standards
F21V 19/02 - Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
F21W 111/06 - Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in groups for aircraft runways or the like
A system includes a first connector end and an electrical device having a second connector end. The first connector end has a number of electrical coupling features, where the electrical coupling features have a first subset of electrical coupling features and a second subset of electrical coupling features. The first electrical device has a second connector end detachably coupled to the first connector end, where the second connector end has a number of complementary electrical coupling features coupled to the electrical coupling features of the first connector end. The first subset of electrical coupling features can provide a first power signal to a first subset of complementary electrical coupling features of the second connector end.
H01R 13/514 - Bases; Cases formed as a modular block or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
100.
MULTI-PHASE BIDIRECTIONAL DC TO DC POWER CONVERTER CIRCUITS, SYSTEMS AND METHODS WITH TRANSIENT STRESS CONTROL
A circuit, system, and method for a multi-phase bidirectional DC/DC power converter includes a plurality of single phase DC/DC power converter circuits coupled in electrical parallel. A converter controller includes a compensator and a saturation limit function module. The compensator is configured to generate a control signal based on a current command signal and an actual current signal. The saturation limit function module is configured to determine a saturation limit for the compensator while the compensator is in a disabled state. The converter controller is configured to disable one or more of the plurality of power converter circuits, match the saturation limit values of the compensator to current operating values when one or more of the plurality of single phase DC/DC power converter circuits is disabled, and re-enable the one or more of the plurality of power converter circuits using the matched saturation limit values to limit transient current stress as any disabled phases and compensators are re-enabled.
H02M 3/155 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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