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Matches 451 - 500 out of 4,739

Document Document Title
JP6399442B2  
JP6400358B2  
JP6392928B2  
JP6385291B2  
JP2018133254A
To provide an earth leakage circuit breaker in which a leakage detection circuit is prevented from breaking operation due to erroneous detection even if invaded by large noise from an electrical circuit.An earth leakage circuit breaker i...  
JP2018125992A
To provide a seismic isolation device and a seismic isolation method which make it possible to clarify a cause to avoid re-energization shutdown by concentrating the cause of the re-energization shutdown into a pattern encompassing the c...  
JP6369775B2  
JP6367218B2  
JP6362832B2  
JP6355217B2  
JP2018518006A
The present invention is an electricity distribution system (1) for connecting with an alternating-current-voltage network (4), and it has a USV power supply section (2) which performs current supply, without breaking off, and a USV powe...  
JP6351312B2  
JP2018101554A
To provide an earth leakage breaker which further reduces the number of parts and facilitates assembly work.An earth leakage breaker 10 includes a control board 111, a zero-phase current transformer 112 mounted on the control board 111, ...  
JP2018101549A
To provide a cable way abnormality detector capable of reducing heat generation in a power supply circuit section, and to provide a switch including the same.A power supply circuit section 20 includes a power storage section 30, a switch...  
JP6343926B2  
JP6326042B2  
JP6319456B2  
JP6318380B2  
JP6316167B2  
JP2018063955A
To detect arc generation at an electrical connection portion such as a terminal belonging to a DC power supply line.An arc generation detection device includes an arc light detection unit, a determination unit, a signal output unit, a ho...  
JP2018060764A
To allow the installed place and state of a breaker to be easily learned.A power distribution monitoring system includes: an electronic breaker 100 including a current detection unit 130 for detecting conduction current, a cutoff unit 12...  
JP6308509B1
[Subject] A pattern which can cover a cause of re-energization interception is made to put together, and it aims at providing admiration Shield device and an admiration Seismic shield method of enabling clearly judgment of a cause that r...  
JP2018057171A
To make it possible to grasp an interception factor of a switch unit when recovery operation is performed.A seismometric relay system comprises: a switch unit 2 comprising an electric circuit switching mechanism 23; a detection unit 31 f...  
JP6297439B2  
JP2018037179A
To provide a DC power supply polarity inversion device capable of preventing a secondary-side circuit from being damaged even when a DC power supply device is connected in reverse polarity.A DC power supply polarity inversion device incl...  
JP2018033210A
To provide a circuit breaker and a photovoltaic generation monitoring system that reduce energy loss due to backward current and thereby can save space and wiring.A circuit breaker 4 includes: a first connection terminal 11A; a second co...  
JP2018029441A
[Subject] It aims at making cheap an installation cost of construction of a dispersed-type power source. [Means for Solution] By a constructing method of an electric power system concerning one embodiment of the present invention, Using ...  
JP6281903B2  
JP6268485B2  
JP6261018B2  
JP2018006201A
[Subject] A miniaturized earth leakage breaker is obtained securing power of absorption of a short circuit tripping device for tripping a trip bar. [Means for Solution] Base 11 and power supply side terminal 20 which sets an interval, is...  
JP2018006134A
[Subject] Also in an electric socket of two poles without a grounding pole, be connectable also in an electric socket of three poles provided with a grounding pole, and when you detect a shake resulting from an earthquake, provide a plug...  
JP2017228540A
[Subject] Offer of a breaker which has a function which communicates a state and the information on failure on radio to a main energy monitoring module without enlarging a distribution board. [Means for Solution] Breaker 112 provided wit...  
JP2017220373A
[Subject] Provide a direct-current switch which can detect having connected conversely the polarity of a power source wire connected to a terminal area of a direct-current switch. [Means for Solution] Between power supply side terminal p...  
JPWO2017046885A1
The present invention obtains a circuit breaker of high-voltage correspondence of a direct current which can perform interception stable to A ground fault current which exceeds 1 kA from a small current of 1 kA or less. The first opening...  
JP2017212171A
[Subject] A protective cover of a circuit breaker which can perform operation mistake regulation of a lever of an operation handle safely is provided. [Means for Solution] It is protective cover 16 which protects lever 13 of circuit brea...  
JP2017212856A
[Subject] An admiration Earthquake breaker which a setup of seismic intensity and shake continuation time is performed, and can make easily a once set-up setting change of a seismic intensity preset value and a shake continuation time pr...  
JP6237533B2  
JP2017199676A
[Subject] A trip control circuit for circuit breakers which detects both exchange current and direct-current current ingredients which flow into a circuit, and can intercept a circuit at the time of an abrupt increase is provided. [Means...  
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...  

Matches 451 - 500 out of 4,739