Matches 1 - 28 out of 28


Match Document Document Title
US20140192450 Fault Current Limiter  
A fault current limiter (FCL) includes at least one magnetisable core member and at least one AC magnetomotive force source configured to generate a varying magnetic flux in at least a portion of...
US20090185319 METHOD OF BREAKING AN OVERCURRENT  
A method of breaking an overcurrent is provided to connect an overcurrent breaking controller in series between an AC power and a load. Thus, when detecting the connected load of which the current...
US20090040666 CIRCUIT INTERRUPTER INCLUDING TEST CIRCUIT  
A circuit interrupter includes separable contacts, a neutral conductor, an operating mechanism structured to open and close the separable contacts, and a plurality of current sensors structured to...
US20120140371 Device and Method for Providing a Quantity of Energy in Said Supply Device for Consumer  
Supply device for providing electrical energy to a consumer electrical circuit, containing a protection and monitoring device (50) assigned individually to the consumer, to the output of which the...
US20120050932 Switch, In Particular Circuit Breaker For Low Voltages, And Power Supply For An Electronic Tripping Unit Of A Switch  
A switch is disclosed, in particular a circuit breaker for low voltages. In at least one embodiment, the switch includes a conductor, an electronic tripping unit (ETU) which trips the switch when...
US20150055263 SOLID STATE FAULT CURRENT LIMITER  
A solid-state fault current limiter including a current splitting reactor, comprising a system current input, a passive current output and a control current output. A voltage control reactor...
US20150043119 ELECTRICAL POWER DISTRIBUTION NETWORK MONITORING AND CONTROL  
An electrical power distribution network may include a plurality of transformers and a local manager associated with a transformer. Each local manager may be configured to monitor and control a...
US20120287544 ISOLATION-TYPE AC FAULT CURRENT LIMITED CIRCUIT  
An isolation-type AC fault current limited circuit is a current regulation circuit including a transformer and a conduction circuit. The transformer includes a primary winding coupled in series...
US20120212872 SYSTEM AND METHOD FOR PROTECTION OF ELECTRICAL APPLIANCES  
An electrical circuit for protecting an electrical load from overload current is provided. The system includes a voltage transformer configured to receive AC mains voltage from an electric mains...
US20120123762 Thermal Memory In A Fault Powered System  
A circuit breaker system for providing thermal protection to a conductor conducting current from a power source to a load. While the power source is connected to the load, a microcontroller is...
US20110216451 PROTECTIVE DEVICE FOR AN ELECTRICAL SUPPLY FACILITY  
The present invention is directed to a protective device configured to be disposed in an electrical distribution system between a source of electrical power and an electrical load. The electrical...
US20100067160 LEAKAGE CURRENT PROTECTION PLUG AND INTERRUPT PROTECTION PLUG CONTACT SPRING STRUCTURE  
A leakage current protection plug includes a plug housing, a power supply cord, two copper legs embedded within the plug housing, a leakage current protection device composed of two main moving...
US20090323242 DISCONNECTOR AND OVERVOLTAGE PROTECTION DEVICE  
An object of the present invention is to provide a disconnector that satisfies applying a lightning surge current, blocking a follow current, being capable of short circuit breaking, and being...
US20080123237 Method and Circuit for Amplifying the Input Signals of an Electronic Overcurrent Release of Low-Voltage Circuit Breakers with a Selectable Amplification Factor  
A method and a circuit are disclosed for amplifying the input signals of an electronic overcurrent release of low-voltage circuit breakers with a selectable amplification factor. The electronic...
US20110096450 COMBINATION CURRENT SENSOR AND RELAY  
A protection device for monitoring current in a power cable to an electrical device and for controlling a remotely located starter for the electrical device in response to a system controller. The...
US20100321848 COMBINATION CURRENT SENSOR AND RELAY  
A protection device for monitoring current in a power cable to an electrical device and for controlling a remotely located starter for the electrical device in response to a system controller. The...
US20140233143 PROTECTION AND CONTROL SYSTEM, PROTECTION AND CONTROL DEVICE, AND MERGING UNIT  
A protection and control system includes a first merging unit which obtains an electric variable from a transformer, and digitally converts the obtained electric variable to output the converted...
US20140098451 Inductive fault current limiter with divided primary coil configuration  
An inductive fault current limiter (1) has a normally conducting primary coil assembly (2) with a multiplicity of turns (3) and a superconducting, short-circuited secondary coil assembly (4),...
US20100002350 PROTECTIVE DEVICE AND METHOD FOR ITS OPERATION  
A protective device is disclosed for combination with an electrical switching device including a main current line or for integration in such a switching device. In at least one embodiment, the...
US20170170645 SENSOR FOR MEASURING CURRENT OF THE ROGOWSKI-TORUS TYPE, PROTECTING AND MEASURING DEVICE AND ELECTRIC CIRCUIT BREAKER INCLUDING SUCH A SENSOR  
A sensor for measuring current of the Rogowski-torus type including a carrier made of a magnetic materials and a secondary winding wound on the carrier in order to deliver an electrical signal...
US20170169980 DEVICE FOR MONITORING A CURRENT OF A PRIMARY CONDUCTOR WITH RESPECT TO A PREDETERMINED CURRENT THRESHOLD, AND RELATED TRIP ASSEMBLY AND SWITCHING DEVICE  
A device for monitoring a current in a primary conductor with respect to a predetermined current threshold, comprising: a magnetic circuit associable to the primary conductor and comprising a...
US20170110873 Fault Detection System and Circuits  
A device, system, and method is disclosed for improving safety of a power system. For example, a differential current may be detected using at least one sensor by temporarily enabling sampling of...
US20170033549 ELECTRICAL SWITCHING APPARATUS INCLUDING ALTERNATING CURRENT ELECTRONIC TRIP CIRCUIT WITH ARC FAULT DETECTION CIRCUIT  
An electrical switching apparatus includes a transductor circuit that senses a direct current between at least one input terminal and at least one output terminal and outputs an alternating...
US20160276115 ELECTRONIC TRIP UNITS POWERED BY CURRENT TRANSFORMERS AND CIRCUIT BREAKERS COMPRISING THE SAME  
A circuit breaker includes a set of separable contacts moveable between a closed position and an open position, an operating mechanism configured to open the set of contacts, a conductor coupled...
US20160190791 DC CIRCUIT BREAKER AND CIRCUIT BREAKING METHOD OF THE DC CIRCUIT BREAKER  
Disclosed embodiments relate to a DC circuit breaker and a circuit breaking method thereof which comprises: a measuring portion for measuring a DC current conducted through a first circuit...
US20160111230 MOLDED CASE CIRCUIT BREAKER WITH CURRENT SENSING UNIT  
A circuit breaker, and method of assembling the circuit breaker, includes a circuit breaker housing defining an interior portion, and which includes a molded base and a separable cover. The molded...
US20150346261 FAULT ARC DETECTION METHOD AND DETECTION DEVICE  
A fault arc detection method includes: sampling an instantaneous current value of a circuit; using the instantaneous current value to predict a current peak value and, when the predicted current...
US20110279942 SURGE CURRENT SENSOR AND SURGE PROTECTION SYSTEM INCLUDING THE SAME  
The present invention may provide a surge current sensor and a surge protection system that deploys one or more surge current sensors. The surge current sensor may be placed on or near to a...

Matches 1 - 28 out of 28