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JP2022187758A |
To improve switch assembly workability.A switch 100 includes a case 50 that houses an opening/closing mechanism, a porcelain tube 40 having a terminal insertion hole 45, a terminal member 11, a porcelain tube side engaging portion 48 for...
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JP2022186244A |
To provide an operation tool capable of not only opening and closing a movable lid of a box body with a lid such as a high-pressure cutout, but also removing or mounting the movable lid from/on a body case of the box body with the lid.An...
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JP3239959U |
A protective device capable of effectively avoiding short circuit, personal injury, or power failure of a circuit that should not be power failure due to an arc that occurs when a knife switch is pulled under load. The protection device ...
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JP2022165570A |
To provide a switch of which a main body case can be formed compact, the switch comprising two bushings in a connection part connected to a wire, etc., of a power distribution line.A switch comprises a main body case 42 including a stati...
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JP2022159780A |
To provide a grounding switchgear capable of suppressing damage, such as meltdown, on fixed and movable contactors due to arc discharges occurring between the fixed and movable contactors at the time of vibration caused by electromagneti...
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JP7153526B2 |
An electrical power supply disconnector for establishing or severing the connection between current conductors and a power supply circuit. The electrical power supply disconnector includes a housing including a central passage, the walls...
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JP2022154791A |
To provide an erroneous operation prevention device capable of preventing erroneous operation by a worker of power supply equipment.An erroneous operation prevention device 1 includes a switch 3 that switches between an energized state i...
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JP7123023B2 |
To provide an insulation barrier in which the contact with peripheral members due to deformation is prevented and an installation process is simple, and a switch having the same.An insulation barrier 26a includes an insulating plate memb...
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JP7116225B1 |
A horizontal two-point disconnector that can reduce the cost and reduces the contact area between a butt contact portion and a finger during opening and closing. A rotating insulator 3 rotatably supported, and a first plate attached to t...
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JP7112665B2 |
To provide a power terminal capable of not only bringing about a state where the tip of the power terminal is inclining in the longitudinal direction for the axis line of the substrate of the power terminal, at a part of the power termin...
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JP2022112969A |
To provide an operating mechanism for a disconnector and a grounding device capable of rotating only one of two driven gears and preventing the rotation of the other.An operating mechanism for a disconnector and a grounding devices inclu...
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JP7088760B2 |
To provide a more safety method easily performed, for replacing a member or repairing it, including an earthquake proof strengthening construction.A method for replacing or repairing a member of a single pole operation triangular pyramid...
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JP2022091144A |
To provide a position display that enables visual inspection so that it can be confirmed that a vacuum breaker and a changeover switch are in correct positions.A switch comprises: a vacuum breaker having a fixed contact 4 and a movable c...
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JP2022083687A |
To provide a loop circuit breaker that opens and closes an electric circuit in an insulated atmosphere (in the air) while reducing the size and cost.A loop circuit breaker includes at least a pair of fixed electrodes 2 and 3 fixed in pre...
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JP2022082466A |
To provide a changeover switch which can minimize wear for many opening and closing operations.A changeover switch for a medium voltage switchgear includes a first terminal body, a second terminal body, and two elongate pole bodies. The ...
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JP7070178B2 |
To prevent heat generation while suppressing repulsion between a mover and a stator at the time of short circuit.A grounding switch (10) includes a mover (12) and a stator (14) that are provided so as to be able to contact and separate f...
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JP7063591B2 |
To provide a switchgear capable of keeping a contact between contacts firmly even under the action of an external force.A switchgear includes a movable contact and two fixed contacts, and the movable contact includes a biasing member tha...
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JP7039223B2 |
To provide an operation device for a switch that has a novel configuration where failures are further reduced, for example.In an operation device for a switch, the switch is switched by rotating an operation shaft. A main rotation member...
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JP7035622B2 |
To provide a ground switch capable of preventing welding and breakage at a current-carrying point between a movable terminal connected to the ground side and a fixed terminal connected to a load side due to the occurrence of an arc.A gro...
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JP2022022863A |
To provide a chlorine resistance and earthquake proof evaluation device of a disconnector, capable of reducing a design time of an insulator construction.A chlorine resistance and earthquake proof evaluation device of a disconnector comp...
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JP6999736B2 |
Disclosed is an air circuit breaker including a safety cover. According to embodiments disclosed herein, a setting unit of an overcurrent trip relay exposed to the outside through an opening is covered by the safety cover, and thus manip...
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JP2022012663A |
To provide a ground switch that can prevent the occurrence of charging defects and shorten a charging time at the time of short-circuit charging.A ground switch (10) includes a movable element (12) and a stator (14) that are provided det...
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JP6989700B2 |
The present invention provides a small and highly reliable operating device for a disconnect switch. The operating device comprises: a motor 1 capable of positive and negative rotation; a main shaft 6 that rotates in response to the outp...
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JP6956915B1 |
The drawer type circuit breaker (100) includes a drawer frame (F), a main body (B), a main body side terminal (1), a drawer frame side terminal (4), and a junction (J). .. The main body side terminal (1) includes a main body side thick w...
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JP6953329B2 |
The purpose of the present invention is to provide a disconnector with which it is possible to mitigate the electric field of a fixed contact piece even when a shield molded from resin is not disposed, the disconnector being made smaller...
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JP6939738B2 |
To provide an air circuit breaker of which the operational reliability is high even under a freezing environment.A charge method for an air circuit breaker includes: a freezing determination step of determining a possibility of freezing ...
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JP6922673B2 |
To obtain a circuit breaker capable of achieving cost reduction by reducing the number of components while securing closing speed of a movable contact in the circuit breaker which performs closing of the movable contact with an electroma...
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JP6916717B2 |
To provide a vibration suppression device preventing breakdown of insulator device, and a pantograph type conductive part of large moment, even if there is large earthquake vibration.A disconnector includes a pantograph type conductive p...
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JP2021089806A |
To provide an operation box that eliminates the risk of flooding inside the operation box even when an area around the operation box is flooded, and can be operated regardless of the time of flooding without approaching a charging unit.A...
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JP2021086680A |
To provide a switch enabling the erroneous operation thereof to be more surely prevented in an opening/closing operation of a cable run from below.The present invention relates to a switch 1 comprising: a housing 11 in which an opening/c...
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JP6880057B2 |
The invention relates to a method for monitoring the opening of a mechanical switching device in an AC high-voltage electrical circuit, having two electrodes that are subjected to an AC electrical potential and to a floating potential, r...
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JP6877310B2 |
To provide a disconnector that prevents the contact failure of a movable blade 4 with a fixed electrode 3 due to the electromagnetic force acting at the time of energization.A disconnector has a structure to maintain contact with a fixed...
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JP2021077483A |
To provide an operating mechanism for a disconnector and a grounding device that can open and close only one of the disconnector and the grounding device with one drive mechanism.An operating mechanism 400 for a disconnector and a ground...
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JP6826497B2 |
The issue of the invention is to provide a vibration suppressing device which can protect an insulator device or two-arm telescopic type electrically conductive parts having large torque from being damaged even when big earthquake occurs...
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JP6812300B2 |
To provide an insulation barrier mounting structure for a switch capable of suppressing enlargement in a direction between different phases while stably mounting an insulation barrier onto a base.An insulation barrier 110 is mounted onto...
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JP2020181749A |
To provide a drive mechanism for moving a movable conductor in an axial direction via a spiral groove formed in a drive shaft and can be simplified and miniaturized in structure.A drive mechanism of a disconnector or a grounding switch i...
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JP2020170604A |
To provide a high-voltage load switch which allows reduction in assembling man-hours by eliminating the need for length adjustment of a spring member.A high-voltage load switch 1 comprises: a fixed main contact piece 17; a movable member...
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JP6762660B2 |
To simplify the work for connecting the terminal of a diverter switch and a power supply.In a diverter switch 101 including one terminal 91 for one pole on one side of a case 11, and two terminals per pole on the other side of the case, ...
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JP2020149779A |
To allow for prevention of damage of a pin and the periphery thereof and to allow for downsizing of an entire device.An actuator (1) for a switchgear supplies and cuts off a current by operating a contact portion of the switchgear. The a...
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JP6727704B2 |
To provide a disconnector capable of suppressing the occurrence of a situation that a reinforced insulator is loosened to come into contact with a peripheral device or the like to be damaged by suppressing the displacement amount of a co...
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JP6714947B2 |
There is included a mounting portion provided in part of a plurality of magnetic iron sheets of a fixed iron core; a driving shaft is pulled out through a gap provided in the magnetic iron sheets in which the mounting portion is provided...
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JP2020098708A |
To provide a switchgear capable of reducing a possibility of leaking an insulation gas in an insulation container to an atmospheric air.A switchgear 1 includes: a primary side magnetic gearwheel 2 structured by a disk-shaped magnet and a...
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JP6707202B2 |
This interlock device (3a) for a switch is provided with: a transmission section (40) in which one end (45) for outputting the on/off state of a first switch moves as the other end (46) moves; and a drive section (50) which moves the oth...
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JP6705406B2 |
A service plug includes a body portion including a pair of power bus bars that are connected to a power supply circuit by being connected to a first terminal of a connector, a switching lever portion including an interlock terminal that ...
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JP6695732B2 |
To provide a power supply automatic switching device capable of automatically switching a commercial power supply and a distributed power supply in a state in which an automatic operation function is maintained, and also allowing install...
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JP6688804B2 |
A circuit breaker/disconnector apparatus for use in a power delivery system comprises a unidirectional DC circuit breaker which has a first terminal and a second terminal and is configured to automatically open during an overcurrent cond...
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JP6688148B2 |
To provide a disconnector unit, load disconnector, and control center, capable of improving manufacturability and maintainability.The disconnector unit includes a disconnector device which electrically connects and disconnects between a ...
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JP6664399B2 |
A mechanical connector for high and low voltages has a first connector part with a first end having a cavity; a second connector part with a first end having a cross section adapted to the cavity of the first connector part, wherein the ...
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JP6656075B2 |
To provide a power supply automatic switching device allowing automatic switching from a commercial power supply to a distributed power supply such as a storage battery in a state in which a manual operation function is maintained at the...
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JP6628809B2 |
A disconnector operating device including a plurality of independent state detection limit switches is provided. The operating device includes: a motor (16) configured to provide driving force to a movable contactor of a disconnector bod...
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