Matches 1 - 50 out of 127 1 2 3 >


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US20140211358 INDUSTRIAL AUTOMATION EMERGENCY STOP WITH STATE INDICTOR  
The embodiments described herein include a system and a method. One embodiment provides an industrial automation system an emergency stop system configured to interrupt power to at least a portion...
US20150207306 DISTINGUISHING BETWEEN OVERLOAD AND OPEN LOAD IN OFF CONDITIONS  
Techniques are described for determining whether a switch circuit experienced one of a latched overload condition and an open load with no input voltage condition. In the techniques, a first...
US20120099237 CIRCUIT BREAKER WITH FAULT INDICATION AND SECONDARY POWER SUPPLY  
An electronic circuit breaker includes controllable contacts adapted to connect a power source to at least one load, and a microcontroller for monitoring the flow of power to the load, detecting...
US20120182664 CIRCUIT BREAKER  
A circuit breaker, including: a circuit breaker body and a circuit control board; the circuit breaker body comprising a box body, and a circuit breaker actuating mechanism used for switching the...
US20130188290 Miswire protection and annunciation of system conditions for arc fault circuit interrupters and other wiring devices  
Electrical distribution systems, equipment and wiring devices are required to have their wiring connections properly identified to ensure proper operation of connected loads as well as the safety...
US20140334055 BREAKER, AND SAFETY CIRCUIT AND SECONDARY BATTERY CIRCUIT PROVIDED WITH THE SAME  
A breaker is provided with: a movable piece (4) that has an elastically deformable elastic portion (43) and a movable contact on the tip of the elastic portion (43) and that presses the movable...
US20130021710 SWITCH COMPRISING A TESTABLE CURRENT TRANSFORMER, AND METHOD FOR TESTING A CURRENT TRANSFORMER OF A SWITCH  
A switch and a method for testing the power transformers of a power supply of the switch are provided, wherein each power transformer generates an analog transformer voltage corresponding to the...
US20130323547 BREAKER, SAFETY CIRCUIT WITH BREAKER AND SECONDARY BATTERY WITH BREAKER  
A digging-into portion 91 formed in a fixed part 42 of a movable piece 4 digs into and fits with a protrusion 74a of a resin casing 71, and the movable piece 4 is firmly fixed to the resin casing...
US20150015999 METHOD OF TRIPPING A CIRCUIT INTERRUPTER IN A BACK FED CONFIGURATION  
A method a tripping a circuit interrupter in a back fed configuration is provided, wherein the circuit interrupter has separable contacts and an actuator, such as a solenoid, operatively coupled...
US20140139964 METHOD FOR DRIVING AN ACTUATOR OF A CIRCUIT BREAKER, AND ACTUATOR FOR A CIRCUIT BREAKER  
A method and system for driving an actuator of a circuit breaker are disclosed. The method includes supplying a coil of the actuator with a first voltage, wherein the coil can generate a magnetic...
US20090278463 POWER INTERRUPTION PROTECTION STRUCTURE FOR LED STRING LIGHT  
A power interruption protection structure for an LED string light implements a Zener diode connected between an anode and a cathode inside or outside a casing of each of plural monochromatic or...
US20150029633 Miniature breaker having short circuit self-locking function and miniature breaker having position state detecting function  
Both a miniature circuit breaker with short-circuit self-locking function and a miniature circuit breaker with position state detection function include: a first miniature circuit and a miniature...
US20100206429 Modular Router With Base Sensor  
A power tool comprises a base unit and a motor unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor and a second electrical connector....
US20060203411 Multi-Purpose Interrupter for Cathodic Protection Systems  
A multi-purpose interrupter for interrupting the current flow from a cathodic protection rectifier. The multi-purpose interrupter may be placed within a rugged enclosure and is configured to...
US20150243464 CIRCUIT PROTECTION APPARATUS AND METHOD OF SETTING TRIP PARAMETERS THEREOF  
A circuit protection apparatus includes separable contacts, an operating mechanism, an electronic trip unit storing a plurality of trip parameter combinations, wherein each of the trip parameter...
US20140146433 Three-Phase Circuit-Breaker  
A three-phase circuit-breaker includes: three circuit-breaking portion tanks that each have a circuit-breaking portion therein and are filled with insulating gas; an operation unit that opens and...
US20110058300 CIRCUIT BREAKER  
A switch is disclosed for power distribution, in particular a circuit breaker and compact switch, which automatically interrupts the electric currents flowing through the switch in a polyphase...
US20120200977 Electronic Trip Unit For An Electrical Switch  
An electronic trip unit for an electrical switch is disclosed which has at least one electrical connection, and which can be mounted in an electrical switch and in the mounted state interoperates...
US20140185176 Power Line Grid  
The present invention is directed to a power line system having a number of controlled release mechanisms. A number of utility poles with cross bars each have a controlled release mechanism...
US20140268434 GFCI with Voltage Level Comparison and Indirect Sampling  
A circuit interrupting device having an auto-monitoring circuit for automatically testing various functions and structures of the device. The auto-monitoring circuit initiates an auto-monitoring...
US20130100569 ELECTRONIC OVERCURRENT RELEASE FOR CIRCUIT BREAKERS  
An electronic overcurrent release for circuit breakers includes a first setting device connected to at least one control input of a microcontroller and configured to set a selected suitable...
US20140278157 GFCI Test Monitor Circuit  
A circuit interrupting device having an auto-monitoring circuit for periodically testing various functions and structures of the device. The auto-monitoring circuit initiates an auto-monitoring...
US20120320487 Medium Voltage Circuit Breaker  
A Medium Voltage circuit breaker which comprises an insulating base frame supporting: a pole assembly having, for each phase, an interruption unit housing a fixed contact and a movable contact...
US20130215548 MOISTURE MONITORING SYSTEM  
A monitoring system for an enclosure having an arc quenching gas includes at least one fluid characteristic sensor in fluid communication with an interior the enclosure, and an electronic...
US20150070801 TWO-POLE CIRCUIT BREAKERS  
A two-pole circuit breaker is provided that includes a first mechanical pole, a second mechanical pole and an electronic pole. The first mechanical pole includes a first armature having a first...
US20130208386 Transformer Inrush Current Restraining Control Equipment  
There is provided with a transformer inrush current restraining control equipment that provide useful practice to effectively restrain transformer inrush current which would be inevitably caused...
US20130021711 Residual Current Protection Device  
A residual current protection device comprises: an arc guiding plate, which is configured to guiding an arc generated during contacts breaking to an arc extinguishing unit. Wherein, the arc...
US20110242720 MAGNETIC CORE COUPLING IN A CURRENT TRANSFORMER WITH INTEGRATED MAGNETIC ACTUATOR  
A system comprising a magnetic actuator, a current transformer and operational electronics in a dual-coil circuit breaker. The system includes an inline, but non concentric, implementation of the...
US20120113557 ELECTRONIC CIRCUIT BREAKER  
A compact electronic circuit breaker is simple to assemble. The circuit breaker has an insulating housing, a switch contact for reversibly contacting a load power circuit to be monitored, a...
US20140029152 SOLID-STATE CIRCUIT BREAKERS  
A fast acting unidirectional or bidirectional electronic circuit breaker for isolating a load from a power-supply unit is described. The described control method for an electronic circuit breaker...
US20140346955 PROTECTION CIRCUIT WITH LOW ENERGY-CONSUMPTION AND DRIVING CIRCUIT THEREOF  
The present invention provides a protection circuit with low energy-consumption and driving circuit thereof, including a detection circuit and a switch circuit, with switch circuit disposed...
US20080024950 SITE-ADAPTIVE AC CURRENT LIMITING FOR RECTIFIERS AND DC POWER PLANTS  
The present invention provides a site-adaptive current manager for use with a rectifier. In one embodiment, the site-adaptive current manager includes a current limit programmer configured to set...
US20140233144 ROOT MEAN SQUARE DETECTOR AND CIRCUIT BREAKER USING THE SAME  
The present disclosure relates to a RMS detector for directly computing a signal detected through an analog circuit to measure its RMS value, and a circuit breaker using the same. For this...
US20130148249 TRIP UNIT COMMUNICATION ADAPTER MODULE EMPLOYING COMMUNICATION PROTOCOL TO COMMUNICATE WITH DIFFERENT TRIP UNIT STYLES, AND ELECTRICAL SWITCHING APPARATUS AND COMMUNICATION METHOD EMPLOYING THE SAME  
A trip unit is for a circuit breaker and includes a plurality of capabilities defining one trip unit style selected from a plurality of different trip unit styles. The trip unit includes a...
US20150049420 LOW-PROFILE ELECTRONIC CIRCUIT BREAKERS, SYSTEMS, AND METHODS  
A low-profile electronic circuit breaker includes first and second electrical branches coupled to respective first and second load terminals. The electronic circuit breaker also includes an...
US20150055266 MAGNETIZING INRUSH CURRENT SUPPRESSION DEVICE  
According to one embodiment, a magnetizing inrush current suppressing device is configured to measure a three-phase alternating current flowing from the power supply bus to the load, detect a...
US20150200070 FAULT CIRCUIT INTERRUPTER DEVICE  
In one embodiment, there is a fault interrupter device comprising at least one sensor comprising at least one first transformer having at least one outer region forming an outer periphery and at...
US20140055904 FAULT CIRCUIT INTERRUPTER DEVICE  
In one embodiment, there is a fault interrupter device comprising at least one sensor comprising at least one first transformer having at least one outer region forming an outer periphery and at...
US20140185178 CHANGING THE STATE OF A SWITCH THROUGH THE APPLICATION OF POWER  
A switch includes a spring. The switch further includes a collapsing element. The spring has a first spring state in which it is being held in tension by a restraining element and a second spring...
US20070091531 Method for forming a interference fringe and method for forming a interference pattern  
The present invention relates to an exposure method for forming an interference fringe and a method for forming an interference pattern on a photoresist material. The exposure method utilizes...
US20150116886 MULTIPHASE CIRCUIT BREAKER SYSTEM HAVING A SHORT-CIRCUIT LINK  
The circuit breaker system contains a plurality of phase conductors, a circuit breaker having a plurality of breaker poles, and a short-circuit link having a star point and a plurality of link...
US20130242450 ELECTRICAL SWITCHING APPARATUS WITH EMBEDDED ARC FAULT PROTECTION AND SYSTEM EMPLOYING SAME  
An electrical switching apparatus, such as a subminiature circuit breaker, includes a housing assembly, separable contacts, an operating mechanism having an actuator device and a latching...
US20060082947 Electronic clinical thermometer  
In turn-on state, it is monitored whether a power switch 15 is pressed or not (ST1). When not pressed, it is continuously monitored whether pressed or not. When it is judged that the power switch...
US20150194798 ELECTRICAL FAULT PROTECTION DEVICE  
Provided is an electrical fault protection device comprising: a housing having supply terminals and output terminals; internal conductors passing between the supply terminals and the output...
US20070253134 Protection of EMC filter components due to failure of boost stage/circuit to prevent smoke, sound or fire in a boost stage under fault condition  
A circuit device and method for protecting EMC components from fault conditions that may negatively affect the components, such as high power dissipation in EMC components when/if the boost stage...
US20090154049 Network equipment system providing surge protection and DC blocking bypass functionalities  
A network equipment system comprises a communication apparatus, an equipment protector block connected between the communication apparatus and a subscriber premise DSL network termination device...
US20050013081 Electronic appliance switch adapter  
A power cord switch adapter including a switch housing, a switch housed within the switch housing, a first connector/conductor end conductively connected to the switch, a second...
US20130301180 VACUUM SWITCH ASSEMBLIES  
The present invention relates to a vacuum switch assembly for interrupting and isolating fault current. The vacuum switch assembly includes first and second dc lines that, in use, are electrically...
US20110228437 PHASE-CONTROL SWITCHGEAR AND METHOD OF CONTROLLING SWITCHGEAR  
A phase-control switchgear includes a circuit breaker, a phase difference detection unit, a storage unit, and a circuit breaker control unit. The phase difference detection unit detects a phase...
US20120162844 TRIP DEVICE OF CIRCUIT BREAKER  
Disclosed is a trip device of a circuit breaker, the device including: a rectifying unit converting an AC (Alternating Current) voltage applied to the circuit breaker to a DC (Direct Current)...

Matches 1 - 50 out of 127 1 2 3 >