Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 451 - 500 out of 4,752

Document Document Title
WO/1979/000105A1
The lead (8) of a working current is associated to a core (3) of which the magnetic induction flux causes, in case of leakage of current, the operation of a circuit-breaker. In this case, an armature (4) of the breaker drops because of t...  
JP6477170B2  
JP2019033070A
[Subject] A miniaturization of differential electrical protective means is attained. [Means for Solution] N-1 phase -- having conductors 7 and 9 -- each phase -- a conductor, It has a portion which can pass a portion, current measurement...  
JP2019013118A
[Subject] A control device for vehicles which can raise accuracy which detects A ground fault , and a A ground fault detection method are provided. [Means for Solution] Control device 1 for vehicles has primary detecting element 16, volt...  
JP6456154B2  
JP2018207637A
[Subject] Safety is improved. [Means for Solution] Admiration Seismic shield system 10 is provided with vibration detector 11, storage part 12, judgment part 13, and blocking section 14. Vibration detector 11 detects a size of an earthqu...  
JP6440108B2  
JP2018190694A
To provide an earth-leakage circuit breaker which can be easily assembled by devising a form of a trip lever.The earth-leakage circuit breaker comprises: a movable contact 8 that is attached to a crossbar 11 turnably installed inside a c...  
JP6425061B2  
JP6423115B2  
JP6402918B2  
JP6403404B2  
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
To reduce the installation work cost of a distributed power source.A construction method of a power system according to an embodiment of the present invention utilizes a 100-V single-phase two-wire distributed power source 14. In this me...  
JP6281903B2  
JP6268485B2  
JP6261018B2  
JP2018006201A
To provide a ground-fault circuit breaker which is downsized while securing a suction force of a ground-fault removal device for removing a trip bar.A ground-fault circuit breaker comprises: a base 11; power source side terminals 20 whic...  
JP2018006134A
To provide a plug type ground-fault circuit breaker which is connectable even by a two-electrode receptacle with no ground electrode and by a three-electrode receptacle including a ground electrode and is capable of varying a breaker ran...  
JP2017228540A
To provide a circuit breaker that wirelessly communicates state and fault information to a main energy monitoring module without increasing the size of a circuit breaker panel.A circuit breaker 112 including a radio transceiver 114 inclu...  
JP2017220373A
To provide a DC switching device capable of detecting that a polarity of a power line connected with a terminal part of a DC switching device has been reversely connected.The DC switching device includes: a power supply side terminal par...  
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
To provide a protective cover of circuit breaker which allows for erroneous operation regulation of an operation handle in safety.A protective cover 16 for protecting the lever 13 of a circuit breaker 1 includes protective cover bodies 1...  
JP2017212856A
To provide an earthquake-sensitive circuit breaker capable of simply changing setting of earthquake intensity and quake duration and an earthquake intensity set value and quake duration set value already set once.An earthquake-sensitive ...  
JP6237533B2  

Matches 451 - 500 out of 4,752