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JP6854451B2 |
To also shut down a second cable way in a second management area included in an object area at the time of disaster occurence.A disaster detection system 1 includes a transmission side device 2 provided in a first management area D1 in a...
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JP2021052579A |
To provide a circuit protection device.A circuit protection device according to the present invention includes: a case; a negative temperature coefficient thermistor that is housed in the case and provided with a first resistance heating...
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JP6846244B2 |
An electric wire protection device includes a voltage adjuster that adjusts voltage on a power source side to be supplied to a load and a controller that includes a temperature calculation part which calculates temperature information of...
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JP2021040364A |
To provide a power supply circuit capable of reducing a heating value of the circuit by suppressing output power without impairing functions of a connected apparatus in the case of overheat of the power supply circuit.The present inventi...
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JP6840426B2 |
To provide a power supply monitoring system that makes it possible to grasp an operation state of a trunk breaker even from the outside.A power supply monitoring system includes: a trunk breaker 1; first detection means V1 for detecting ...
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JP6838170B2 |
First to n-th (n is an integer of 2 or more) power conversion devices (U1 to Un) are connected in parallel to a load (52). First to n-th fuses (FS1 to FSn) are provided in first to n-th wirings (W1 to Wn), respectively. Each of the first...
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JP6830220B2 |
To provide an abnormality determination method, abnormality determination system, program, interruption system, and distribution board for determining the existence of abnormality such as an electric accident following an earthquake.A de...
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JP6830031B2 |
To provide a seismic sensing interruption system for securely stopping outlet output upon the occurrence of an earthquake, even if the system does not receive external signal for controlling interruption of an outlet unit with an interru...
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JP6825831B2 |
To provide a power supply unit capable of improving safety while avoiding sudden turning-off of an output when an overheat state occurs.The power supply unit includes: an overcurrent protection circuit for limiting an output current to b...
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JP6822914B2 |
To improve accuracy of an overheat detection and appropriately perform an overheat protection.An overheat protection circuit 10 includes: a Schottky barrier diode (SBD)D4; a transistor Q2; and a driver IC13 or the like. The Schottky barr...
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JP6808547B2 |
An electric wire protection device includes a voltage adjusting unit that adjusts voltage of a power source side and supplies the resulting voltage to a load, and a controller that includes a calculation unit configured to compute temper...
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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...
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JP6796464B2 |
To provide an earthquake sensitive shutoff system capable of immediately shutting off a particular electric circuit if an earthquake sensitive relay senses an earthquake even if the earthquake sensitive relay is in cooperation with a HEM...
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JP6797468B2 |
To provide a power distribution board for making it possible to externally grasp an operation cause of a trunk breaker such as power distribution abnormality.A power supply monitoring system 1 is made to comprise: a trunk breaker 21; a s...
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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...
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JP2020167882A |
To provide a power distribution device capable of supplying power to a load depending on a peripheral environment.A power distribution device 50 for distributing power of a power supply 1 to a plurality of loads 21 to 23 comprises: a fus...
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JP6762550B1 |
Through electrical equipment such as distribution boards, distribution boards, light boards, power boards, control boards, and junction boxes, where the power supply side electric lines from the power supply side and the load side electr...
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JP6758221B2 |
To provide an overcurrent/overheat detection function of a switching element by a simple circuit.In a switching element 106 with a minute value resistance for current detection as a source resistor, overcurrent protection and overheat pr...
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JP6756015B1 |
To surely prevent secondary damage caused by a secondary battery being energized when a fire occurs or a fire extinguishing device is operating. In a DC power supply panel 10 having a plurality of secondary batteries (lithium ion storage...
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JP6748540B2 |
To provide a semiconductor device capable of performing appropriate operation in accordance with a state of a power supply circuit.A semiconductor device includes: a power supply circuit configured to generate an output voltage to be fed...
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JP2020137352A |
To provide a power supply device capable of blocking a semiconductor switch in the case where an application voltage to the semiconductor switch is reduced, and an operation of a protection feature becomes an unstable state.A power suppl...
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JP6738700B2 |
A driving circuit according to an embodiment includes a driving unit, a first temperature detecting unit, an overheat protecting unit, a second temperature detecting unit, and a failure diagnosing unit. The driving unit supplies a drivin...
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JP6738905B2 |
The present invention relates to a storage battery device which is provided with: a main circuit storage battery box which is divided into a plurality of device chambers; a plurality of storage battery units which are respectively stored...
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JP6730390B2 |
[Problem] To simplify circuitry of a charging cable and a safety circuit. [Solution] A charging cable 50 according to the present invention is provided with: a leakage circuit breaker 15 that is connected to a power line 13 between a pow...
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JP2020112377A |
To detect disconnection of a second power source line in a battery pack including a control unit to be driven by power to be supplied from at least one of the first and second power source lines.A battery pack 1 includes: a first power s...
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JP6725453B2 |
Methods, systems, and apparatus for a multipoint safety isolation system. The multipoint isolation system includes one or more isolation triggers that connect to multiple low voltage (LV) battery components and multiple high voltage (HV)...
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JP6719765B1 |
Through electrical equipment such as distribution boards, distribution boards, light boards, power boards, control boards, and junction boxes, where the power supply side electric lines from the power supply side and the load side electr...
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JP6719764B1 |
Through electrical equipment such as distribution boards, distribution boards, light boards, power boards, control boards, and junction boxes, where the power supply side electric lines from the power supply side and the load side electr...
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JP3226515U |
To provide a smart grid protection system arranged in a transmission line network capable of protecting each power node in a predetermined area by using various power information. A smart grid protection system includes a first power pro...
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JP6715481B2 |
To securely intercept power supply to a load after occurrence of an earthquake.A signal processing section 10 outputs an interception signal S1 to a leak current driving section 13 when an earthquake sensing section 11 senses an earthqua...
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JP6712199B2 |
An overcurrent protection circuit includes a current control part configured to control conductance of a transistor so as to limit an output current flowing when the transistor is turned on to a predetermined upper limit or less, and a d...
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JP6706477B2 |
This switch element safely opens or short-circuits an electric circuit in response to abnormalities such as wetting with water or leakage from a battery. This switch element is provided with one or multiple conductors 2 which are connect...
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JP2020089199A |
To provide a power receiving device, a power feeding device, and a wiring system capable of improving the detection accuracy of abnormalities that occur in power receiving devices.A power receiving device 2 includes: a power receiving un...
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JP6702294B2 |
An overcurrent protection device is to be provided between a power supply and a load circuit including an electric load and an electric wire electrically connected with each other, and includes a switching element, a current detector, a ...
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JP6693660B1 |
To provide a charging device capable of suppressing the occurrence of arc discharge due to the terminal body being separated from the charging terminal at the time of charging, a control method thereof, and a control program thereof. A c...
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JP2020058152A |
To improve reliability to an operation of a system.A vibration-sensitive protection system 100 has an open/close portion 21, a tripping portion 22, a vibration detection portion 11, a processing portion 12, and a vibration applying porti...
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JP2020054098A |
To improve responsiveness to rise in temperature.A detection system M10 includes a temperature detection unit 5 and a control unit 7. The temperature detection unit 5 detects temperature corresponding to a power supply line L1 of electri...
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JP6665683B2 |
To achieve detection of shutdown operations of a thermosensitive switching part without any auxiliary contact using the thermosensitive switching part and without need for providing additional components except the thermosensitive switch...
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JP6660696B2 |
An explosion-proof device includes a frame having a hollow shape, the frame housing an electrical component and a battery capable of supplying the electrical component with electric power. A protection device is configured to stop electr...
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JP6659529B2 |
To provide an electric power supply which can be reliably placed in a system startup state when a system startup operation is performed.When a system startup operation is performed, a positive electrode side relay and a pre-charge relay ...
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JP6654472B2 |
To provide a power supply device capable of swiftly detecting abnormality etc. on a component even after the electric power is shut off by a safety device.A power supply device 10 includes: a power source 11; a safety device 12 that shut...
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JP6655667B2 |
An apparatus and method for changing a state of a connector based on moisture are disclosed. The apparatus can comprise an electrical connector (16) configured to connect to an electrical power source and to power input circuitry (112) o...
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JP6614166B2 |
The present invention improves accuracy of determination of a cause of occurrence of an abnormality of an energy meter. An external server (30) includes a receiving section (33) configured to receive, from an energy meter (10), informati...
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JP6610446B2 |
A power supply control apparatus controls power supply via a semiconductor switch, by a driving circuit turning ON or OFF the semiconductor switch. A current circuit pulls in a current from the drain of the semiconductor switch via a res...
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JP6611475B2 |
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JP6605058B2 |
To provide an insertion type connection unit having a function for making a circuit breaker operate even if a normally-operable wiring state is not secured, in a receptacle to which the insertion type connection unit is connected.An inse...
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JP6605875B2 |
To provide a quake-sensitive power cutoff system which allows for installing a circuit for immediate power cutoff and a circuit for delayed power cutoff, both being designed to work when an earthquake occurs, on a single common power lin...
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JP2019193541A |
To improve reliability with respect to detection of an abnormal rise of temperature .An outlet 1 comprises an electrification unit A1, a temperature detection unit 5, and a control unit 7. The electrification unit A1 includes at least a ...
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JP6598119B2 |
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JP2019187044A |
To provide a shutdown notification system that can inform a resident of a time until power failure and stop delay interruption operation by simple operation when a seismic device starts delay interruption operation upon receiving an occu...
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