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Patent Searching and Data


Matches 601 - 650 out of 4,393

Document Document Title
JP4736949B2  
JP4716809B2  
JP4715537B2  
JP2011124217A
To provide a ground-fault interrupter which can simplify electrical connection between a main circuit current conduction section and a leakage detection circuit and facilitates its assembly.In the ground-fault interrupter, both ends of a...  
JP4696665B2  
JP2011108548A
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...  
JP2011108455A
To provide an electronic breaker having a function which monitors capacity changes of a smoothing capacitor incorporated in a power supply circuit without making an On-Off operation of power supply and detects them when the capacity is r...  
JP2011100606A
To solve a problem that a length dimension in electric path direction from a power supply side terminal plate to a load side terminal plate of an earth leakage breaker becomes large.The earth leakage breaker is provided with a switching ...  
JP4683809B2  
JP4683950B2  
JP2011086434A
To provide a ground leakage breaker that sets a detection sensitivity from low sensitivity to high sensitivity by a mechanical setting with a simple configuration and is forcibly set to operate speedily.When an extension slide switch 171...  
JP2011054525A
To solve a problem wherein there is possibility that a plunger may unintentionally come out by separating attraction between a permanent magnet and the plunger when impact force or vibration force at a designated or more level is acted t...  
JP4647821B2  
JP2011044248A
To provide an electronic protective relay device capable of transmitting an accident occurrence information outside without time delay even during transmission of other pieces of information by inserting accident occurrence existence dec...  
JP4641197B2  
JP2011040274A
To provide a circuit breaker in which protection function of the breaker can be selectively switched over by a simple button operation so that it can be operated as a wiring breaker or an earth leakage breaker as required.The circuit bre...  
JP4631593B2  
JP2011034714A
To provide a circuit breaker of good assemblability with reduced number of assembling steps and components, for a lower cost, capable of preventing degradation in insulation between phases caused by sticking of arc gas after cutting off....  
JP2011027589A
To provide a small-sized power measuring device measuring power highly accurately, and also to provide a breaker using the device.This power measuring device includes main circuit measuring parts 701, 702 for measuring a current and a vo...  
JP4628636B2  
JP4623562B2  
JP4625518B2  
JP4623560B2  
JP2011018460A
To share a component between a voltage trip device and an undervoltage trip device.A trip bar 2 of a switching mechanism 300 in an air circuit breaker 100 is provided with a trip bar cut groove 2a and a trip bar extension 2b, wherein, in...  
JP2011018518A
To provide a circuit breaker capable of preventing insulation breakdown for secondary winding of a transformer and connector components, and capable of easily showing its connection condition, even though an open state is happened among ...  
JP4619101B2  
JP4620240B2  
JP2011014385A
To drive a circuit breaker at an early stage and protect a wiring passage from being heated, when a user inputs a power source again, while an electrical apparatus remains unimproved, as it is.In an electronic wiring circuit breaker, a C...  
JP2011015583A
To provide a leakage detection method, a leakage detection device and an earth leakage breaker by which noise resistance performance thereof is improved and only a resistive component of a leakage current is accurately detected.A leakage...  
JP4615571B2  
JP4606952B2  
JP4604862B2  
JP4600303B2  
JP2010277769A
To provide a leakage test switch unit which prevents an excessive load from being applied on a tact switch even when a test button is strongly pushed down, and achieves size and cost reduction.This ground fault interrupter includes a zer...  
JP2010272523A
To provide a reliable abnormal current detecting circuit for a circuit breaker capable of quick abnormal current detection without delay time, with abnormal current detection characteristics not changing sensitively in accordance with te...  
JP2010272297A
To provide a circuit breaker capable of reducing a cut-off current at cut-off and a passage energy caused by the cut-off current by processing an operation of overcurrent detecting function at high speed after starting a power supply wit...  
JP2010267510A
To provide a circuit breaker for a low-tension power contract capable of activating an overcurrent detection circuit at a driving voltage obtained from a current transformer.The circuit breaker for low-tension power contract is provided ...  
JP4587972B2  
JP2010262858A
To provide a circuit breaker for a low voltage power contract, selectively displaying on a display abnormality of a plurality of objective portions to be monitored in the state of power failure of a wiring path so as to properly perform ...  
JP2010257953A
To securely break electric connection between poles of a DC power supply or an AC power supply all through an overcurrent range.This invention is applicable to a circuit breaker arranged in a power supply circuit that supplies power from...  
JP2010257657A
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 e...  
JP2010257658A
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...  
JP2010257581A
To provide an energizing information measuring and displaying device of a circuit breaker improved so that an existing measuring unit and an existing display unit can be used even for a circuit breaker of a model having a large frame siz...  
JP4577711B2  
JP2010251251A
To provide an earth leakage breaker making readily visible a display in occurrence of earth leakage.An earth leakage detection block 2 includes an interlocking lever 18 driven by moving a mover 24 by an electromagnetic mechanism 17 in de...  
JP2010534458A  
JP2010244793A
To secure longer operating time and drive control stability of a tripping portion upon a long time delay tripping operation of a circuit breaker.The circuit breaker is so structured that an electric current level of an electric line is d...  
JP2010246284A
To prevent the other load apparatus from being adversely affected when a short-circuit fault occurs in a load apparatus. A current distribution device comprises a fuse which is fused when a branched DC current flows and a current not sma...  
JP2010246217A
To avoid malfunction of peripheral equipment and increase in the size of a circuit interrupter, to enable repetitive use of a circuit breaker, and yet to automatically cut off both the poles of a power source from each other even when an...  
JP2010230457A
To provide a split-type electric leak sensor and an electric leak detector which dispense with a connector for connecting coil wires and is able to maintain electrical contact reliability.The split-type electric leak sensor has coil wire...  

Matches 601 - 650 out of 4,393