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Patent Searching and Data


Matches 501 - 550 out of 3,673

Document Document Title
JP7096345B2
The present disclosure relates to an earth leakage breaker and an arc detection apparatus and, more specifically, to an earth leakage breaker and an arc detection apparatus attachable/detachable to/from the earth leakage breaker. An eart...  
JP7086284B2
A breaker (1) comprises an open/close mechanism part (10), a tripping device (20), a detection part (30), a driving part (40), a body case (70), a light emitting diode (50), and a flashing control part (60). The open/close mechanism part...  
JP2022083240A
To provide an abnormality detection breaker capable of checking the detection status of abnormal conditions at any time, and a distribution board.An abnormality detection breaker 4 is connected to a power supply path C11 included in an e...  
JP2022078908A
To provide a seismic power cutoff device that can be easily and surely mounted on a wall regardless of the type of wall surface, and more reliably prevents malfunction of a device during and after mounting.In a seismic power cutoff devic...  
JP2022076875A
To enable a wiring abnormality occurrence range to narrow down.A wiring abnormality detection system 1 includes an acquisition unit 11, a reception unit 12, and a determination unit 13. The acquisition unit 11 acquires a detection result...  
JP2022062776A
To provide a circuit breaking device capable of preventing a connection portion between an internal electric circuit of a breaking unit and an internal electric circuit of a detection unit from being exposed to outside.A circuit breaking...  
JP7053386B2
A differential electrical protection device D including N−1 phase conductors, each phase conductor including, between an input, or upper, connection land and an output, or lower, connection land, a portion able to pass through a torus ...  
JP2022052143A
To reduce the number of parts required for a detachment device.A detachment device 1 of an earth-leakage circuit breaker includes a detachment coil 2, a plunger 3 that is attracted to the detachment coil side by exciting the detachment c...  
JP7046243B1
To provide an electronic breaker which suppresses a current cutoff by controlling a load device according to an excess amount of a current amount. The electronic breaker 1 of the present invention has a rated current, a circuit breaker 5...  
JP2022516570A
Methods and devices provide improved methods for monitoring circuit degradation and obtaining pre-degradation warnings so that measures can be taken before the circuit breaker trips to the circuit. The method establishes the baseline of ...  
JP7023261B2
A circuit interrupter electrically connects a line terminal to a load terminal in a closed condition and electrically disconnects the line terminal from the load terminal in the open condition. A controller includes a fault detector conf...  
JP7022738B2
Electronic tripping device for an electrical, multipole line protection apparatus, of the circuit-breaker type, comprising a current measurement unit and an electrical current measurement processing unit, characterised in that it is form...  
JP2022029998A
To provide a circuit breaker capable of easily controlling an operation of electric apparatuses by measuring used power of various electric apparatuses in order to improve efficiency of energy utilization in a building and easily contrib...  
JP7020179B2
To prevent effects of a magnetic field on a permanent magnet and a demagnetization coil arranged inside of the yoke of a leakage tripping device, even when a magnetic field is generated by a large current flowing in a conductor for elect...  
JP7012256B2
To reduce influences to a load due to an operation test.A circuit breaker 2 includes a pull-out part 24 and a processing part 22. The pull-out part 24 performs a pull-out operation to mechanically shift a contact C1 that is electrically ...  
JP6999235B2
To provide a structure capable of grasping a wiring state at a load side of a main circuit in a state where a breaker is turned off.An abnormality detection device 1 comprises: a current output unit 11 which causes a current to flow to a...  
JP2022012470A
To provide an earth leakage breaker that comprises an A-type leakage determination circuit and an AC-type leakage determination circuit, and that can select and use one leakage determination circuit suitable for an installation environme...  
JP6997476B2
To provide a portable electrical leak operation tester that can save operator's trouble to input working current information for measurement and also can improve accuracy of input data.A portable electric leak operation tester 1 conducts...  
JP6990394B2
To provide a vibration-sensitive breaker control device capable of accurately detecting an earthquake intensity and appropriately breaking an electric leak breaker in accordance with the earthquake intensity correspondingly to a shape of...  
JP6979903B2
To provide a seismoscopic relay which improves workability and wiring can be performed in a short time when mounting a seismoscopic relay panel adjacently to an existent distribution panel and performing wiring connection of a wire betwe...  
JP6964197B2
The objective of the present invention is to provide an earth leakage circuit breaker which is capable of reliably detecting a leakage current of an alternating current component in a circuit as well as a leakage current of a pulsating d...  
JP6966097B2
To provide a plug whose cap is reliably fixed to a housing.Buttons 21c and 21d are respectively provided in button arrangement holes 72 and 73 so as to be exposed outward from a front face 21 of a housing 20. A button cap 76 at least par...  
JP6964541B2
To move a seismic sensor provided in a seismic device such that operation can be confirmed.In a seismic device 1, a seismic sensor mounting unit 13 and a breaker 31 are fixed by a fixing unit 14, the seismic sensor mounting unit is equip...  
JP6949362B2
To provide a power supply shut-off device that enables a power supply shut-off function to be easily introduced and that reduces secondary incidents associated with power shut-off.A power supply shut-off device 21 is attachable to a dist...  
JP6936729B2
To provide a circuit breaker which can be easily assembled, while adopting a quick connection terminal.A circuit breaker comprises: an intermediate base 12 having quick connection terminal metal fittings 10 and 10, load seats 21 and 21 h...  
JP6921315B2
The present invention comprises: an abnormality detection unit that includes a sensor which is embedded between an opening/closing mechanism section of a base section (21) and a load terminal (82) and which measures a current flowing to ...  
JP2021110603A
To provide a notification system and a measurement system capable of easily supplying operating power for performing notifications relevant to measured values.A notification system 3 includes a notification unit 5 that performs notificat...  
JP2021111608A
To provide an aerial switch that automatically switches off.An aerial switch that automatically switches off includes a switch body, an electric circuit space is installed inside the switch body, an electric circuit blocking mechanism th...  
JP6909293B2
- 15 - ABSTRACT *************** Method for manufacturing a measurement sensor for a circuit breaker The subject of the present invention is a method for manufacturing a measurement sensor (10), a measurement sensor manufactured using sai...  
JP6899114B1
To provide a breaker device capable of contributing to setting a small rated current value. A breaker device 11 detects a current value based on a breaker module that cuts off energization in response to receiving a break signal and an a...  
JP6897576B2
To provide a circuit breaker improved to be able to create detection signals of various contents in response to user's request.A circuit breaker 1 includes a circuit breaker body part 8, a state detection switch SW, an alarm detection sw...  
JP6865387B2
To improve safety.A vibration-sensitive interruption system 10 comprises: an oscillation detection part 11; a storage part 12; a determination part 13; and an interrupting part 14. The oscillation detection part 11 detects the magnitude ...  
JP6848204B2
A circuit breaker can be obtained which can be used when a power supply side and a load side cannot be reversely connected, or can detect a connection state exceeding a limitation and achieve an open circuit so as to avoid faults caused ...  
JP6847439B1
To provide a breaker device capable of contributing to setting a small rated current value. A breaker device 11 is distributed to a breaker module that cuts off energization in response to reception of a break signal, an ACDC power suppl...  
JP6847440B1
To provide a breaker device capable of contributing to setting a small rated current value. A breaker device 11 is distributed to a breaker module that cuts off energization in response to reception of a break signal, an ACDC power suppl...  
JP6839813B2
The objective of the present invention is to reduce the generation of heat from a power source circuit section. The power source circuit section (20) comprises a power storage unit (30), switch units (40), a voltage detection unit (50), ...  
JP6837620B1
It is a protective relay that does not require the work of creating a name plate and attaching it to a protective relay. Name plate display data by acquiring tag information from the setting value information storage unit (4) that stores...  
JP2021012894A
To provide a plug whose cap is reliably fixed to a housing.Buttons 21c and 21d are respectively provided in button arrangement holes 72 and 73 so as to be exposed outward from a front face 21 of a housing 20. A button cap 76 at least par...  
JP2021009804A
To provide a circuit breaker that hardly causes a situation in which a lead wire is clamped at the time of assembling a cover member to a base.An electromagnetic tripping apparatus 10 is constituted by a yoke 21 that includes a tabular b...  
JP6817613B2
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...  
JP6818101B2
A fault detector test device includes a test switch including a pivotable lever arm having a first end pivotably connected to rotate about an axis and a second end pivotable in an arc around the axis between an active position and an ina...  
JP6811906B1
The fluxgate magnetic sensor is arranged so as to surround the conductor (505a, 505b) and measures the magnitude of the magnetic field generated by the current flowing through the conductor (505a, 505b). The positioning mechanism (508) p...  
JP2021001791A
To provide a general-purpose leakage detection device which prevents a shared operation without hindering a leakage detection operation of a high-sensitive operation region, and can be used in a direct grounding type electric path up to ...  
JP2020198766A
To provide a power switching system that can cut off a load from a power supply even when an earthquake occurs while a commercial power supply is cut off and the load is operating on a distributed power supply.A power switching system in...  
JP6797984B2
To provide a leakage breaker for preventing a leakage fire by disabling the leakage breaker in an event of a momentary ground fault and issuing a leakage alarm signal when a leakage current exceeds a reference value.The leakage breaker i...  
JP2020535388A
The present invention relates to a PCB CT element for detecting a stand-alone instantaneous current applied to a circuit breaker, and more specifically, it may be mounted on a main PCB formed on the circuit breaker or independently of th...  
JP2020193917A
To make it easier to introduce a function of detecting an abnormality in a wire into a distribution board.An abnormality detection system 100 includes an acquisition unit 711 and a detection unit 712. The acquisition unit 711 acquires me...  
JP6789146B2
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...  
JP6782598B2
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...  
JP6779625B2
The present disclosure discloses an electrical switchgear configured to control an electro-magnet by using the electro-magnet, a critical temperature device, and an electro-magnet control unit without using a bimetal and a mechanical con...  

Matches 501 - 550 out of 3,673