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Patent Searching and Data


Matches 601 - 650 out of 4,614

Document Document Title
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...  
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...  
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...  
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...  
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...  
JP2013182680A
To obtain an electric leakage circuit breaker in which an electromagnet device is arranged at a low-voltage portion, and which operates this electromagnet device for emergency short mode failures of an electronic component.An electric le...  
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...  
JP5289648B2
Provided is an electronic circuit breaker equipped with a trip device in an electronic circuit and an electromagnetic trip device, such that the electronic circuit breaker can determine that an excess current is flowing in an alternating...  
JP5288757B2  
JPWO2012008088A
An earth leakage breaker is provided with the following. Level distinction machine 4 which outputs a plurality of pulses which show time beyond a plurality of standard levels as compared with each of a plurality of standard levels before...  
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, ...  
JP2013171799A
To reduce unnecessary cut-off operation while simplifying circuit configuration.A semiconductor breaker includes: a semiconductor switch unit which controls a conduction state between a power supply device and a loading device on the bas...  
JP2013168289A
To provide a circuit breaker with a fixing structure capable of surely fixing a core.A through hole 31b to be provided on a core 31, is shaped into an approximately square hole, an inner fixing rib 42 capable of fixing the core 31 by con...  
JP2013168290A
To provide a circuit breaker capable of surely fixing a core.A core 31 is shaped into a rectangular frame, an outer peripheral surface of the core, in other words a top surface of a top side and a bottom surface of a bottom side, a front...  
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...  
JP2013161753A
To provide a circuit breaker that can measure a cable way current independently of selection of a voltage line by only incorporating one current sensor, and that is used for a single-phase three-wire cable way.A circuit breaker has: a cu...  
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 ...  
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,...  
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...  
JP5258670B2  
JP5258633B2  
JP5255923B2  
JP5253798B2  
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...  
JP5245591B2  
JP5238582B2  
JP5230432B2  
JP5231061B2  
JP5226450B2  
JP5225448B2  
JP5225234B2  
JP2013125637A
To provide a circuit breaking device capable of individually and clearly indicating abnormal causes of an electric path in which an abnormality has occurred, even with a compact structure.A circuit breaking device 1 includes a circuit br...  
JP5215268B2  
JP5212005B2  
JP5209427B2  
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...  
JP2013105644A
To provide an earth leakage circuit breaker capable of improving insulation performance of a printed board by preventing contact with an arc gas.There is provided an earth leakage circuit breaker formed by incorporating in a case 12 a ma...  
JP2013518555A
In at least several embodiments, a system has the trip control circuit connected with the exterior of a plurality of circuit breakers and its circuit breaker. By a trip control circuit, several different operation options become selectab...  
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 ...  
JP5196559B2  
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...  
JP2013516031A
The present invention relates to a locking mechanism provided with a button (7) for resetting an electromagnet, a link axis (24), and a mechanism which it has an adjustment core (22) and winding (21) for an electric wire way protection d...  
JP5192777B2  
JP5192879B2  
JP5190635B2  
JP5185181B2  
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...  
JP2013062955A
To detect abnormality of a DC cable way laid in a dwelling comprehensively.A current sensor 10 includes an annular core 101 into which a DC main cable way 23 consisting of a plurality of wires is inserted as a primary conductor 104 in a ...  
JP5164910B2  
JP5166174B2  

Matches 601 - 650 out of 4,614