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Patent Searching and Data


Matches 401 - 450 out of 1,670

Document Document Title
JP2010021081
To provide an overcurrent circuit breaker and an interruption method of overcurrent, with sufficient consideration of operating characteristics depending on heat accumulation as being so-called an electronic type, and can surely carry ou...  
JP2010015745
To reliably interrupt leakage even if a leakage current has a distorted waveform in a wiring device for detecting the leakage current of an electrical path connecting commercial power supply and a load to interrupt the electrical path.A ...  
JP2010015872
To allow a user of an electronic circuit breaker to recognize a circuit failure at a processing unit for processing electrical connection information, when the processing unit is tripped because of the failure and to prevent the circuit ...  
JP2010014478
To provide a leakage detector, coping with leakage protection characteristics of "Type A" adapted to proper leakage detection by suppressing the generation of DC biased magnetization in an iron core, even when a DC component is superimpo...  
JP2010011548
To provide a distribution gear wherein when a circuit breaker connected to a secondary electric circuit for supplying power to electronic equipment constantly requiring power supply is replaced, power supply to the electronic equipment i...  
JP2010009919
To easily carry out the electric connection of an earth leakage detecting circuit and a primary conductor penetrating a zero-phase current transformer, to reduce the number of parts for connection and assembling man-hours for electric co...  
JP2010003513
To provide a circuit breaker aiming at averaging of the number of opening and closing times of each phase contact and capable of improving contact life and durability for opening and closing.The circuit breaker is provided with a current...  
JP2009289485
To provide a remote controlled breaker allowing the off state of a main contact to be discriminated without looking at it directly.The remote controlled breaker includes the main contact turned off at the occurrence of an abnormal curren...  
JP2009277362
To provide an automatic input system, in which a measuring signal measured by an automatic input device is output to a remote place by a contact output, and in which by combining the measuring signal in a matrix state, the state of the a...  
JP2009266462
To provide a compact detection unit in which a breaker, a CT, and a ZCT are efficiently arranged on a terminal table body, and an automatic input device using the detection unit.The detection unit 2 has at least two electric paths formed...  
JP2009259815
To provide an interlock system of a breaker having an electronic trip unit module.The breaker interlock system 10 includes an electronic trip unit module 18, and a breaker 14 accommodating it. The breaker 14 is closable when the electron...  
JP2009259810
To provide an electronic trip unit for circuit breaker.This electronic trip units for circuit breaker 100 includes a rating plug 110 having a plurality of switches each configured to indicate a specified current rating for the rating plu...  
JP2009259440
To provide a circuit breaker unit, along with a distribution panel, allowing abnormal circuit state display for easy observation, allowing easy confirmation of position and state of an operation handle, and improving operativity for effe...  
JP2009259816
To provide a universal trip unit of a circuit breaker device.This universal trip unit 10 for use with a circuit breaker device 1 comprises a communication unit 40 configured to communicate with a personality module 3 and to thereby recei...  
JP2009252549
To provide a multipole type circuit breaker unit that copes with only one type although arrangement of terminal fittings for neutral pole electric path is different depending on the domestic market type and overseas market type in a thre...  
JP2009252718
To provide an automatic resetting breaker of a simple structure, that is down-sized and inexpensive and equipped with a sufficiently satisfactory capability even to cope with conditions which have high occurrence frequency of induced lig...  
JP2009245835
To provide a circuit breaker for detecting whether a connected state between a first metal fitting provided in an electric path in a single-phase three wire system and a second metal fitting connected to the first metal fitting, and for ...  
JP2009245791
To provide a wiring instrument between a main leakage breaker connected to a commercial power supply and a load for preventing the occurrence of electric shock due to the breakage (flotation) of a ground line, having a leakage detecting ...  
JP2009245836
To provide a circuit breaker for detecting occurrence of connection failure in its early stage without making a substantial design change and by minimizing increase of the number of components.A connection failure detecting circuit to de...  
JP2009245792
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...  
JP2009238574
To provide a circuit breaker capable of not only easily checking if a grounding system is in a normally functioning state chronologically, after a grounding work is made, but also checking a checking function itself of the grounding syst...  
JP2009232588
To provide an SPD disconnecting device capable of safely disconnecting an SPD in failure due to short circuit by previously preventing a normal SPD from being disconnected due to malfunctions of a conventional wiring breaker and a conven...  
JP2009224285
To provide a circuit breaker unit having a leak detector in which a testing unit for testing to confirm the operation of the leak detector can be constituted without using resistors with a high rated power and heat resistivity at a low p...  
JP2009224198
To obtain a ground-fault circuit interrupter in which a stable power source is supplied to a leakage detecting circuit and a tripping device, and a stable test operation is possible.The a ground-fault circuit interrupter is provided with...  
JP2009199767
To provide a wiring device which is interposed between a main earth leakage breaker connected to a commercial power supply and a load in each customer, has an earth leakage detection function, and serves as a wall-embedded outlet, a tabl...  
JP2009199899
To provide a circuit breaker downsized in the width direction.The circuit breaker includes two fixed contacts 2A, 2B juxtaposed in right and left directions of a container, two movable contactors 4A, 4B in which separately opposing movab...  
JP2009170422
To provide an electronic trip device, concerning an electronic circuit breaker equipped with threshold parameterization, current measurement, a test connector, a display and communication functions or the like, capable of incorporating i...  
JP2009170338
To provide a breaker in which cut off is not carried out in a flow of a transient overcurrent such as a starting current, cut off is carried out in an overload current flowing exceeding a rated current set by a contract and an excessivel...  
JP2009163882
To provide an electronic overcurrent circuit breaker doing away with complicated wirings, which can mechanically activate a built-in electromagnetic breaker to break a current path even in case an electronic monitor fails to work at shor...  
JP2009163960
To provide a DC switch for preventing certainly generation of arc.The DC switch includes a contact part 1 having a semiconductor switch 11 connected in series to a mechanical contact 10 and the mechanical contact 10, an equipment body 2 ...  
JP2009158292
To prevent decrease of an installation space in a distribution switch board, and yet to restrain degradation of efficiency of a DC power distribution system as a whole due to conversion loss in a DC/DC conversion means.A DC/DC conversion...  
JP2009158293
To restrain decrease of an installation space in a distribution switchboard, as well as degradation of efficiency of a DC power distribution system as a whole due to conversion loss in a DC/DC conversion means.A DC voltage V2 outputted f...  
JP2009158196
To provide a circuit breaker for preventing a load from being broken by incorrect wire connection.The circuit breaker includes a high potential side power supply terminal 10H and a low potential side power supply terminal 10L which are r...  
JP2009158186
To provide a circuit breaker for preventing a load from being broken by incorrect wire connection.The circuit breaker includes a high potential side power supply terminal 10H and a low potential side power supply terminal 10L which are r...  
JP2009153331
To provide an electric path current detection circuit using a zero-phase current transformer, and to provide a circuit breaker using that circuit.A first resistor 10 of several tens m consisting of a bimetal is provided in an electric pa...  
JP2009153341
To provide a DC power distribution system capable of linking loads without utilizing another system, and to provide a circuit breaker.For example, if an emergency signal (fire alarm signal) is transmitted from a fire alarm, an emergency ...  
JP2009153336
To provide a distribution system which operates a load safely without cutting off an electric path by a breaker for preventing an overload.A direct-current breaker 114 includes a power measuring portion 114a to measure an output power br...  
JP2009153340
To provide a DC power distribution system capable of continuing power supply to a necessary branched path over a longer period than a conventional system even if the power supply from a DC power system is interrupted, and to provide a ci...  
JP2009142021
To obtain a leakage relay that performs leakage test without winding a test winding around a zero-phase current transformer and can detect disconnection from the zero-phase current transformer or a missing line without increasing the cir...  
JP2009140926
To provide automatic circuit breaker (10) identification to an electronic trip unit (31).A circuit breaker (10) electronic trip unit (31) installable in a circuit breaker (10) has a processor 31.1, a first memory (13) properly operably c...  
JP2009140719
To prevent breakdown such as a burnout even in reversed connection by quick electrical leakage blocking operation even if one phase is interrupted.A three-phase ground-fault interrupter includes a three-phase full-wave rectifier circuit ...  
JP2009117051
To provide a three-phase ground fault interrupter interrupting leakage even with one phase open, causing no damage such as burnout even when reverse-connected and allowing high-speed interruption.The power is supplied via a three-phase f...  
JP2009104806
To provide a three-phase ground-fault interrupter with simplified component control by enabling to alter characteristics without changing a basic circuit structure.A power supply circuit 6 of a leakage determination circuit 7 is structur...  
JP2009099403
To provide an electronic circuit breaker that can extract an electric path even when a trouble occurs in a processing part for processing current information.The electronic circuit breaker 1 comprises a contact 13 for connecting an exter...  
JP2009093891
To provide an electronic breaker having a leakage cut-off function which can detect and inform when a leakage current is flowing in an electric path.The electronic breaker is provided with: a current transformer to detect the size of cur...  
JP2009087689
To provide a ground-fault circuit interrupter which effectively removes noise while preventing a signal to be inputted into a leakage detection circuit from becoming small, and reduces a mounting area.The ground-fault circuit interrupter...  
JP2009089574
To provide a ground-fault circuit interrupter which lowers the voltage applied across the contacts of a test switch and can reduce the isolation resistance between a test coil and the secondary coil of a zero-phase current transformer.Th...  
JP2009079957
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 disto...  
JP2009081927
To provide an apparatus which can easily determine whether the state of the normal leak current of an electric path is in a range of being able to guarantee the detection accuracy of a requested grounding current for a resistor and also ...  
JP2009081899
To notify a user of failure if the failure occurs in a processor, which processes information on energization, in an electronic breaker.The electronic breaker 1 is equipped with a contact 13, which connects an external power source 12 ar...  

Matches 401 - 450 out of 1,670