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JP5351533B2 |
To provide a circuit breaker stopping supply of power to a determination circuit after breaking, even in case an operation power source of the determination circuit is taken further from a power source side than a power source side termi...
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JP5351062B2 |
PURPOSE: A battery circuit breaker is provided to secure the operation of a trip coil by supplying the necessary voltage when the short-circuit current is flowing in an alternating current converter. CONSTITUTION: A battery circuit break...
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JP5345444B2 |
To surely protect a wiring path from heating, by keeping changes of a line current as a history in the duration of an excess current to early actuate a cutoff mechanism. In an electronic molded-case circuit breaker, a CPU determines the ...
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JP5339973B2 |
To interrupt an electric passage between a drive circuit of a motor used for a pool floor elevating device and a power source by leakage of 5 mA in a leakage interrupter arranged in a pool for water depth adjustment and used for the pool...
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JP5331548B2 |
A universal trip unit (10) for use with a circuit breaker apparatus (1) is provided and includes a communication unit (40) configured to communicate with a personality module (3) of the circuit breaker apparatus and to thereby receive ke...
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JP5324503B2 |
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JP5324344B2 |
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JP5322545B2 |
An objective of the present invention is to provide a circuit breaker capable of shortening a time for starting a tripping operation of breaker during occurrence of large current, without wear of contacts and welding, and having good ene...
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JP5319949B2 |
To provide a wiring apparatus which is interposed between a main earth leakage breaker and a load in each user, has a load cutoff function for protection against leakage and excess current, works as a wall-embedded plug receptacle, a tab...
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JP5310501B2 |
To provide an electronic ground-fault interrupter having an overcurrent determination function and a ground fault determination function which are integrated into a CPU that can suppress a tripping operation based on ground fault determi...
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JP5310463B2 |
The present invention provides an earth leakage breaker, the detection sensitivity of which can be set from low sensitivity to high sensitivity by a mechanical setting in a simple configuration, and which can be forcibly set in high-spee...
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JP5312833B2 |
To provide a circuit breaker, with which labor taken in a measurement work of grounding resistance can be made as little as possible after a grounding work is made, and which can easily check if the grounding work itself is properly carr...
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JP5313934B2 |
To solve the following problems: contact between a connection sheet and a fixed contact is destabilized to invite possibility of causing poor contact; and the connection arrangement space of the connection sheet is enlarged. The connecti...
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JP5302549B2 |
A circuit breaker is provided to miniaturize a bobbin and a main body by parallel winding a first coil and a second coil to the bobbin. A load connection part and a power connection part are arranged in a main body. A contact part includ...
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JP5295850B2 |
To provide an electronic circuit breaker which can make a circuit-breaking control circuit suitably continue its control after its circuit-breaking operation without taking any countermeasure such as enlargement of capacity of a power so...
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JP5295538B2 |
To provide a means capable of accurately detecting the occurrence of tracking phenomena and similar abnormal currents from a point of view different from conventional techniques. A first parameter acquired by converting an aspect of dist...
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JP2013182821A |
To enable a user to accurately know a factor of power failure by accurately grasping the factor when the power failure occurs.In an earth leakage breaker 2 as a switch to which wires c1-c3 of a three-wire system are connected, primary-si...
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JP5289648B2 |
Provided is an electronic circuit breaker, having a tripping device using an electronic circuit and an electromagnetic tripping device, capable of determining that a current value has failed to be measured accurately because excessive cu...
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JP5288757B2 |
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JP5283646B2 |
To provide a DC ground fault detecting relay having a function of identifying a ground fault line. The DC ground fault detecting relay 10: includes a ground fault power supply 11, a coupling capacitor 12, an N-pole selecting switch 13N, ...
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JP5268039B2 |
To provide a circuit breaker for reducing environmental load and assuring electrical safety by automatically stopping power supply to an electrical path in case that it is not necessary in the electrical path used in construction sites o...
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JP2013161752A |
To provide a circuit breaker capable of measuring a circuit current when housed in an existing circuit breaker case with reduced thickness even if a current sensor is made up of a Hall element and a current transformer.A circuit breaker ...
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JP2013158236A |
To provide an arc control assembly.In accordance with certain aspects of the disclosure, a controller is provided that detects the presence of a fault condition on a secondary side of a transformer. Upon detecting such a fault condition,...
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JP5260330B2 |
The case has a bottom part (22) and a lid forming a cavity. The cavity has a box (58) including an activation orifice arranged at level of a side wall of the bottom part permitting to place an electromagnetic actuator. The box is adapted...
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JP5258670B2 |
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JP5258633B2 |
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JP5255923B2 |
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JP5253798B2 |
The device has a processing circuit (7) for receiving a signal (ID) representing differential current. The processing circuit has inputs (14, 16) for selecting time-current tripping characteristics. An actuator (21) opens main contacts (...
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JP5243344B2 |
A circuit breaker includes an external oscillation circuit (14) which generates a high speed external clock for operating a microcomputer (8) at a high speed, a timing circuit (15) which sets a timing corresponding to an oscillation stab...
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JP5245591B2 |
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JP5238582B2 |
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JP5230432B2 |
A ground-fault circuit-interrupter method and system for three-phase electrical power systems including a plurality of GFCI units and a processor forming a ground-fault circuit interrupting system for use in a three-phase power distribut...
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JP5231061B2 |
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JP5226450B2 |
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JP5225448B2 |
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JP5225234B2 |
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JP5215268B2 |
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JP5212005B2 |
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JP5209427B2 |
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JP2013110925A |
To provide a DC ground-fault current detector having a high detection performance of a ground-fault current and having a simple configuration.A DC ground-fault curent detector 101 includes a zero-phase current transformer (ZCT) 1, an exc...
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JP2013093275A |
To block unnecessary operation of an earth leakage breaker 3 due to wrong contact of a human hand or a tool during maintenance or modification work of a panel, because the test button 4 of an earth leakage breaker is projecting from the ...
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JP5196559B2 |
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JP2013089589A |
To automatically set a fixed rating of an electronic breaker by selection of an electronic controller and an electronic breaker rating setting switch accompanied by thereof.An electronic controller 14 includes: a built-in memory 10 in wh...
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JP5192777B2 |
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JP5192879B2 |
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JP5190635B2 |
To provide an apparatus which facilitates determining the presence of a ground-fault current of a resistance value and value reliability and is practical and economical. An apparatus such as a molded case circuit breaker, a ground-fault ...
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JP5185181B2 |
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JP2013065464A |
To provide a zero-phase current transformer unit excellent in assembling workability while maintaining insulation performance.The zero-phase current transformer unit comprises: primary conductors 1 composed of a flexible stranded conduct...
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JP5164910B2 |
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JP5166174B2 |
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