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JP7123006B2 |
To provide a circuit breaker capable of coupling a base and a cover, constituting an enclosure, without using a fastening screw, and inhibiting breakdown of the enclosure due to fastening.A circuit breaker 1 includes an enclosure 10 havi...
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JP7122679B2 |
To provide a circuit breaker drive system with reduced size of a part that is placed in the cabinet of the distribution board.A circuit breaker drive system 100 includes a detection part 11, a drive part 13, and a housing 16. The detecti...
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JP2022112177A |
To provide a circuit breaker with a temperature sensor unit arrangement configuration that enables effective measurement of a temperature at a circuit breaker main contact provided on the circuit breaker.A circuit breaker has a temperatu...
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JP7101557B2 |
To provide a circuit breaker capable of suppressing an approach of a foreign material through an exhaust port while avoiding an increase of the number of components.A circuit breaker includes a power supply side terminal and a load side ...
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JP7101633B2 |
To provide a terminal cover capable of more reliably preventing tools and the like from entering the terminal part of a switchgear.A terminal cover 20 includes: a cover body 21 covering a terminal mounting part which is provided in a swi...
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JP7098236B2 |
To restrain that an operator contacts an end surface of a bus bar even in a state of detaching a branch breaker from the bus bar.A distribution board comprises a bus bar 2 with which a plug-in type breaker is connected, and is constitute...
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JP2022103991A |
To provide an electromagnetic tripping device less likely to generate a humming noise.A coil 13 in which a cable run current flows is wound around a cylinder 12 which is inserted by an oil dash pot 11 for actuating a movable electromagne...
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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...
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JP2022099980A |
To provide a circuit breaker in which the operating amount of a release lever is not affected by the size of the diameter of a wire inserted into a quick-connect terminal.In the normal posture, a release lever 13 is provided with an actu...
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JP7096140B2 |
To provide a terminal metal fitting of a circuit breaker, which can secure a wide internal space of a device formed inside a cover without deteriorating the strength of the cover.There is provided a terminal metal fitting 25 of a circuit...
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JP2022096442A |
To reliably hold a grid by an arc extinguishing plate without deforming the arc extinguishing plate.A grid 2 is provided with locking pieces 21 to be locked to an arc extinguishing plate 3 on the left and right, and the locking piece 21 ...
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JP2022095267A |
To obtain a circuit breaker status diagnostic system that can provide an indicator of circuit breaker deterioration status.A circuit breaker status diagnostic system includes a circuit breaker having a circuit breaker status processing u...
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JP7089894B2 |
A switchgear for an electric current includes a switching assembly that can be switched between an open state and a closed state; a control mechanism including a trigger member for triggering the switching of the switching assembly to th...
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JP2022091402A |
To provide a manufacturing method and the like suppressing reduction in cylindricity of a cylinder even when employing forging.A manufacturing method as a method for manufacturing a bottomed cylindrical cylinder 10 used for a dash pot 10...
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JP7085896B2 |
To provide a circuit breaker in which a coil spring for pressing a movable contact can be easily arranged on a movable body.A circuit breaker 10 includes a handle 70, a separator 60, and a coil spring 80. The separator 60 operates in con...
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JP7085962B2 |
To provide a circuit breaker in which a terminal fitting is assembled to a base by one operation without using the other members, and a movement of the terminal fitting is regulated.A circuit breaker 10 comprises: a first movement regula...
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JP7085904B2 |
To provide a circuit breaker capable of facilitating assembly of a movable contact onto a separator.A circuit breaker 10 can contact and disconnect a cable run between a power supply side terminal 31 and a load side terminal 41 by contac...
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JP2022087608A |
To suppress a load to a contact of a switch that a DC circuit breaker comprises.A DC circuit breaker (1) comprises: a switch (Sm); a transformer (30); a DC voltage source disposed between terminals of a secondary coil of the transformer;...
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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...
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JP2022080514A |
To obtain a circuit breaker that can make contact between a movable contact and a fixed contact stable during a pole closing operation.A circuit breaker includes a movable element 6, including a plurality of movable conductors 60, and a ...
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JP7076635B2 |
The present invention provides a circuit breaker comprising an electroconductive member (70), a movable contact (21), a grid part (31), a core (40), an arc runner (80), and a permanent magnet (81). A fixed contact point (71) is provided ...
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JP7075798B2 |
To provide a circuit breaker capable of easily performing an insulation resistance measurement test even in a state of connecting a load wiring to a rapid-connecting terminal.Support walls 5 and 5 stood in a vertical direction to an incl...
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JP7071353B2 |
A pressure-actuated tripping device for an electrical line protection apparatus, of the circuit-breaker type, delimited by an enclosure and comprising inside the enclosure: - a gas inlet orifice opening into an upstream chamber; - a down...
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JP7070942B2 |
To provide a terminal overheat detection device capable of detecting abnormal overheat of a terminal by simple configuration, without requiring modification of a circuit breaker, and yet capable of confirming whether or not a normal outp...
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JP7070941B2 |
To provide a terminal overheat detection device capable of detecting abnormal overheat of a terminal by simple configuration, without modifying a circuit breaker, and capable of confirming whether or not normal output can be obtained by ...
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JP7070940B2 |
To provide a terminal overheat detection device capable of detecting abnormal overheat of a terminal by a simple configuration, without requiring modification of a circuit breaker, and yet capable of confirming whether or not a normal ou...
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JP7069402B2 |
A quick-connection terminal unit includes: a terminal part (30); an insulating case part (40); and an insulating cover part (50). The distal end of the terminal part (30) is connected to the screw terminal part of the source side or the ...
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JP7064981B2 |
To provide a circuit breaker capable of simplifying the structure of a link member enabling transmission of power from a handle to a separator.A circuit breaker 10 includes a separator 60, a handle 70, and a link member 80. The link memb...
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JP7057621B1 |
To provide a breaker circuit breaker device which incorporates the voices of users so far and further improves convenience. A single or a plurality of weights, a string-like object to which a knob mounting means attached to a breaker kno...
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JP7057253B2 |
To suppress backlash when attaching an attachment device to a distribution apparatus, and suppress a nipping of a distribution line when attaching the attachment device to the distribution apparatus.In a fixing structure of a distributio...
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JP7054809B2 |
To achieve high reliability by suppressing shorting of a pair of coated electric wires connected with a terminal part in a wiring accessory.An output socket includes: a terminal part 100 connected with a pair of power lines for supplying...
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JP2022059516A |
To suppress a flow of a current larger than an allowable current through an electric wire connected to a breaker.A circuit breaker 10 includes a connection terminal 101 to which a conductor 211 of an electric wire 21 is directly and elec...
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JP7052623B2 |
To provide a circuit breaker that does not require to secure a space for fixing an opening/closing mechanism unit to the inside of a housing and is not subject to restrictions on the structure even if the circuit breaker has a small size...
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JP7050656B2 |
To obtain a cooperation unit and a circuit breaker system that can realize cooperation between circuit breakers with a simple configuration.A cooperation unit 30 cooperates the state of a first circuit breaker 10 and the state of a secon...
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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...
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JP7043269B2 |
To provide a circuit breaker which can reduce manufacturing man-hour.A circuit breaker 10 electrically connects and breaks a power side terminal seat 31 and load side terminal seat 41 by contacting and separating a stationary contact 32 ...
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JP2022049539A |
To provide a circuit breaker that can prevent the arc from being extinguished slowly.A circuit breaker (10) includes a stator (11) provided with a fixed contact (17), a mover (12) provided with a movable contact (18) that can contact the...
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JP2022047370A |
To provide an interlocking cutoff mechanism of a circuit breaker that can interlock the breaking operation with a simple design change and can cope with an increase in a trip load.A connection circuit breaker 10 is configured by closely ...
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JP7040103B2 |
To provide a circuit breaker capable of quickly commutating an arc from a fixed contactor and a movable contactor to arc horns.A circuit breaker 10 comprises: a fixed contactor 20; a movable contactor 22 which moves toward and away from ...
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JP7038349B2 |
To provide a switch device that can be installed while precisely positioning a circuit board through installation of a first unit and a second unit and installation of a cover member.An outlet comprises: an opening/closing unit 70 for pe...
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JP2022039974A |
To provide a terminal cover of a breaker which terminal cover can accurately detect a fact that an abnormality has occurred.A terminal cover 3 of a breaker which is a terminal cover of the breaker being arranged in a board within a power...
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JP2022036764A |
To provide a circuit breaker that can easily adjust the position of a terminal fitting and can easily grasp the position of the terminal fitting at the present time.In a main body case 2, an operation member 12 located outside the main b...
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JP7031083B1 |
In a DC circuit breaker, it is effective to quickly commutate the arc generated between the contacts at the time of disconnection to the arc runner in order to shorten the interruption time and extend the life by reducing the wear amount...
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JP2022035810A |
To provide an electromagnetic removing device of a circuit breaker, capable of preventing the generation of beating sounds without loosing a member that holds a movable electromagnetic piece.An elastic holding member 14 as a plate spring...
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JP7026059B2 |
Circuit breaker-type protective apparatus for power lines, comprising at least one electrical circuit designed to allow the current of a power line to pass, and a coil connected to this circuit, having a movable core (8), attracted by th...
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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...
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JP7022618B2 |
To provide a circuit breaker capable of restraining unintended conduction of a terminal fitting and a movable contact more accurately.A circuit breaker 10 has a power supply side terminal seat 31 and a load side terminal seat 41 exposed ...
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JP7020961B2 |
To provide an attachment structure to an attachment panel of a circuit breaker, capable of easier attaching it to the attachment panel.A lock part 32 can be vertically slid between a lock position projected to a lower direction from a bo...
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JP7019095B2 |
This connection conversion adapter (1) is provided with an adapter main body (2) and a plate-form terminal cover (3). The adapter main body (2) has a device connection unit which is connected to a screw terminal (101) of an electric devi...
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JP2022020600A |
To provide a method for estimating characteristics of an electric switching device, and a related device.A method includes a step comprising a step 102 for measuring current flowing through a coil, a step 104 for measuring a supply volta...
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