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Matches 451 - 500 out of 4,700

Document Document Title
JP2017199505A
[Subject] When in a power supply side a load side is reverse-connected and voltage that use is impossible or usable has restriction, a circuit breaker which can prevent failure by insulating degradation is obtained by detecting being con...  
JP2017199677A
[Subject] A control circuit of an earth leakage breaker which prevents an error of a short circuit judging by generating of offset voltage of an input amplifier is provided. [Means for Solution] Zero-phase-sequence current transformer 10...  
JP2017200255A
[Subject] A short circuit relay etc. which can prevent malfunction of a short circuit relay certainly with easy composition as compared with conventional technology are provided. [Means for Solution] In a short circuit relay which judges...  
JP6221844B2  
JP6223454B2  
JP2017188986A
[Subject] It can be made to perform highly precise detection also to a short circuit waveform containing a waveform which controlled a harmonics noise, serge, and erroneous detection by an unusual waveform, and was rectified by load. [Me...  
JP2017188201A
[Subject] The noise tolerance of a short circuit detector circuit is improved. [Means for Solution] Voltage [1 / 1st comparator COMP] S3 according to detection signal S2 from zero-phase-sequence current transformer 104, and the predeterm...  
JP6209725B2  
JP2017182936A
[Subject] In a portability type actuating current measuring instrument, while being able to attain-izing for a short time [of measurement], a burden at the time of measurement can be eased for a worker, and moreover, a measuring instrume...  
JP2017182937A
[Subject] In a portability type short circuit operation test machine, while time and effort which inputs actuating current information at the time of an examination for a worker is mitigable, raise the accuracy of input data and, moreove...  
JP2017181119A
[Subject] While time and effort which inputs actuating current information at the time of an examination is mitigable, lower limit information of operation can be acquired in a short time, and a portability type short circuit operation t...  
JP2017168330A
[Subject] In a portability type short circuit operation test machine, while a burden at the time of measurement is mitigable for a worker, provide a measuring instrument which can treat measurement record data statistically by recording ...  
JP2017168329A
[Subject] In a portability type actuating current measuring instrument, while being able to attain-izing for a short time [of measurement], a burden at the time of measurement can be eased for a worker, and a measuring instrument which c...  
JP2015526837A5  
JP6195189B2  
JP2017157431A
[Subject] An earth leakage breaker which can reduce unnecessary operation is provided ensuring protection at the time of a short circuit. [Means for Solution] Magnetization circuit 13 which outputs a measurement signal which consists of ...  
JP6188554B2  
JP3211914U
[Subject] It is an energization interrupting device of a short circuit breaker in a ready-made distribution board unit, and when earthquake seismic intensity beyond a setup has been perceived, in order to prevent an outbreak of a fire, a...  
JP6173118B2  
JP6168491B2  
JP6168342B2  
JP2017126438A
[Subject] A voltage range applied is wide, and shortens short circuit injection operating time, and it provides an earth leakage breaker without a possibility of tripping also with a power supply adversative conjunction interlock state, ...  
JP6163950B2  
JP6157390B2  
JP6159747B2  
JP2017516281A
This invention relates to a microswitch (2) connected with a fuse (3) or a circuit breaker at series, and a protection instrument (1) containing a current measurement unit (5), and a memory unit (4) and a control unit (6). At least one c...  
JP6142732B2  
JP2017096644A
[Subject] An earth leakage breaker which uses a current detecting apparatus and this which can detect wide range current from micro current to a high current is provided. [Means for Solution] The 1st current detection part 3A that detect...  
JP6138353B2  
JP6139345B2  
JP6137982B2  
JP6136438B2  
JP2017091935A
[Subject] When the power transmission by the side of power transmission of a power switching device suspends the subject of the present invention and input voltage declines, the circuit connection switch of a power switching device is in...  
JP2017093237A
[Subject] An integrated circuit for earth leakage breakers of low cost corresponding to detection of current leakage like a pulsating flow waveform by which half-wave rectification was carried out is provided. [Means for Solution] Integr...  
JP2017091696A
[Subject] A combination starter which can be provided with a short circuit detection function is provided attaining a miniaturization and reduction-ization of a manufacturing cost. [Means for Solution] Circuit breaker 2 and magnetic cont...  
JP2017091811A
[Subject] An earth leakage breaker which can cope with big surge voltage and cannot break down easily is provided without enlarging a serge absorber. [Means for Solution] It trips between two voltage lines X and Y of cable run L1 which c...  
JP6123084B2  
JPWO2016067378A1
A zero-phase current machine (3) which detects an opening-and-closing point of contact (2) which opens and closes an exchange cable run (1), and leak current of an exchange cable run (1), A pressure-lowering circuit (53) which lowers the...  
JP2017076554A
[Subject] A protective cover, a breaker, a leak sensing device, and a leakage protective device which can protect connection bar 5 and can perform wiring work easily are provided. [Means for Solution] If it comes to put together leak sen...  
JP6116499B2  
JP2017511098A
A system for diagnosing a problem of the spot of a circuit protection device containing remote computer systems (58) and a circuit protection device for diagnosis (2) installed in a customer position is provided. A circuit protection dev...  
JPWO2015159364A1
Circuit breaker 30 is provided with the following. Current transmission 14 which outputs a current signal according to exchange current which flows into cable run 1, Reference waveform storage part 15 which memorizes a reference waveform...  
JP2017073225A
[Subject] An earth leakage breaker provided with a mechanism in which a terminal area can be isolated from the circumference without covering with an insulation tube or a press-fit sleeve to a terminal area of leads is provided. [Means f...  
JPWO2015121908A1
Processing of a conductor member is easy, enables the miniaturization of a device, and provides a short circuit primary detecting element and an earth leakage breaker excellent in especially assembly nature. It is from one side of the di...  
JP6105643B2  
JP2016024963A5  
JP2017050116A
[Subject] Without [without it enlarges a size and weight, and] increasing cost, magnetic saturation of an iron core of a zero-phase-sequence current transformer is prevented, and an earth leakage breaker which improved the balanced chara...  
JP2017045603A
[Subject] By strengthening rotation rigidity of bimetal, accuracy of over-current tripping of a circuit breaker of operation is improved, and interception performance is improved. [Means for Solution] Lower energization conductor 27a is ...  
JP2017045706A
[Subject] Even when excess voltage is continuously impressed to exchange cable runs, such as a withstand voltage test, an earth leakage breaker is made to intercept and an earth leakage breaker which can prevent failure of a power supply...  
JPWO2014156945A1
An arc generating detection apparatus in which detection and a miniaturization are possible and a switch of arc generating in electrical link parts, such as a terminal which belongs to a power source line with comparatively easy composit...  

Matches 451 - 500 out of 4,700