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WO/1998/007223A1 |
A power switch installation has a power switch which contains a pole unit and a switch drive, the disconnecting functions being ensured by driving the complete power switch or by rotating the pole unit relatively to the switch drive or b...
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WO/1997/032327A1 |
The invention relates to a fuse-switch and/or fuse-disconnector with a housing (5) made of insulating material and at least one connection chamber (3) with contact elements (7) to accommodate a fuse link (2) held in a fuse holder (9) and...
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WO/1996/021962A2 |
The invention concerns a transformer assembly intended for the field terminal of encapsulated medium-voltage switchgear with a circuit-breaker housing which is connected to a bus-bar housing by means of a flange and a cable lead-through ...
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WO/1996/017420A1 |
The invention relates to a restorable high-speed circuit closer capable of rapidly short-circuiting the conductors in a multi-phase network, for example for the purpose of eliminating a fault arc. The rapidity of the circuit closer is ac...
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WO/1996/016420A1 |
Disclosed is a double-sided break switch (10) operated by a double motion mechanism that rotates the blade (22) about a remote axis. Instead of rotating about its own axis (34) the blade (22) rotates about a pivot point (42) that is a sh...
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WO/1996/014649A1 |
An isolating switch (10) has a main sub-assembly (11) which is hung from an overhead power line prior to opposite ends of the isolating switch being permanently connected to the power line. To retain the sub-assembly on the line prior to...
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WO/1995/002888A1 |
The present invention relates to a fuse arrangement (1), which is particularly suited to high voltage applications, but also has applications across broad voltage range. A fuse arrangement (1) comprises a fuse link (2) arranged to be con...
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WO/1993/001604A1 |
An isolating switch is to be adapted to the heavy currents occurring during busbar changes at low operating voltages. To this end, an auxiliary contact pin (3), which is located in a counter-contact (2) in the known manner and acts as a ...
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WO/1992/007373A1 |
The purpose of the invention is to provide an isolating switch in which the arc time is kept short. In the single-post pantograph-type isolating switch of the invention, first of all the main contacts (1, 2) open, followed by the auxilia...
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WO/1991/013455A1 |
An electronic sectionalizer includes mounting structure (12) including first and second electrical contacts (18, 22) spaced from one another and electrically conductive structure (26) having an external surface and provided with first an...
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WO/1991/007768A1 |
Owing to the relatively slow operation of the main tripping pin (3) of an isolator switch (1), it is customary to provide a spring-biased auxiliary tripping pin (7) located inside the main tripping pin (3). Like the main tripping pin (3)...
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WO/1991/005356A1 |
In an earthing switch (4) for an encapsulated high-voltage switchboard plant, the moving switching component (6) is moved by a rotating drive spindle (11) passing through the casing (5) of the earthing switch (4). In order to achieve the...
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WO/1990/015428A1 |
A contact system for lever-operated isolating switches includes a movable contact member (5) and fixed permanent contacts (6), arranged in pairs and containing the movable contact between them, and a fixed precontact arrangement allocate...
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WO/1990/013932A1 |
A metal-encapsulated and gas-insulated load switching device has a three-position switch (4) for the 'on', 'off' and 'earthed' positions and a vacuum power switch. Here, with the three-position switch (4) in its 'on' position, there is a...
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WO/1990/001787A1 |
In high-tension switchgear with compressed gas insulation, insulated earthing switches (3) are also used to apply test voltages. To this end, a ring (13) of insulating material, in which a conductor (14) with a terminal lug (15) in conta...
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WO/1984/004424A1 |
The telescopic sectioning device is comprised of nested tubular elements (10, 11', 12'); the base element (10) is connected to an electric plug, and the intermediary elements (11', 12') and an end element carry an electric contact. Each ...
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JP7462904B2 |
To enable the manual operation of an operation handle even if a handle hook for executing automatic switching is engaged with the operation handle.A drive device 3 has a crank member 13 rotated by a motor portion 14, and an arm lever 12 ...
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JP7446204B2 |
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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JP7432086B2 |
Embodiments of present disclosure relate to an apparatus for operating an electric switching device. The apparatus comprises: a main shaft configured to be rotated to a plurality of predetermined positions to change a state of the electr...
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JP2024017534A |
An object of the present invention is to provide a method for replacing an operating device of a disconnecting switch, which allows an operation confirmation test under actual use conditions after replacing the operating device, and enab...
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JP7428228B2 |
To enable an increase in size of a device to be avoided while repulsion between a movable element and a stator is suppressed when a short-circuit current is applied to a contact portion between the movable element and the stator.A ground...
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JP7412097B2 |
To provide an automatic power source switching device which is capable of stopping an automatic switching operation per se through simple manipulation and facilitates maintenance of a distributed power source.An automatic power source sw...
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JP2024500275A |
A sensing device for a high voltage disconnect switch includes a light emitting element configured to match its temperature with a temperature of the high voltage disconnect switch, and configured to receive light emitted from the light ...
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JP2024500274A |
A sensing device (10) for a high voltage disconnect switch (20). The sensing device (10) includes a first optical fiber (110) configured to receive light from the light source (100) and configured to guide the light. (110) and an optical...
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JP7381400B2 |
To provide an incorrect operation prevention device in a simple configuration capable of preventing incorrect operations of operators during power restoration operation.An incorrect operation prevention device 1 for preventing predetermi...
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JP2023163278A |
To enable a plurality of switches of an opening/closing switching device to be simultaneously switched without interposition of a small part for connection so as to fill a gap between members that are rotated in the time of switching of ...
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JP2023163279A |
To enable the suction force to a movable iron core of a coil to be secured without increasing the size of a connection member and an opening/closing switching device.An opening/closing switching device comprises a main circuit unit which...
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JP7374002B2 |
To provide an electromagnetic coil device which can be easily manufactured and can suppress peeling and cracking of a mold resin.An electromagnetic coil device 1 includes a coil conductor 2 and a mold resin 3 covering the coil conductor ...
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JP3244106U |
[Problems] Easy to use when branching power transmission lines, quick connection, and when a failure occurs in a power transmission branch line, the power can be turned off without cutting off the connection, reducing the risk of electri...
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JP2023141787A |
To provide a switching switch for input switching whose width dimension can be made smaller than that of the conventional one, and a distribution board incorporating this switching switch.A switching switch according to the present inven...
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JP7354874B2 |
To lock motor-driven operation in simple structure.In a motor-driven operation apparatus 100 for operating opening/closing of a disconnector via a link mechanism 7 which is interposed between a tip end portion of an operation lever 4 and...
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JP2023135921A |
To provide a misconnection prevention device that can be easily retrofitted to an existing construction switch, and whose simple configuration allows for easy manufacture and maintenance.In a misconnection prevention device 1 that preven...
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JP7343828B1 |
An object of the present invention is to provide a disconnector that realizes space saving with a compact configuration. [Solution] A disconnector (1) is provided with a first support insulator (2) provided on a base (7) and a first supp...
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JP2023124996A |
To provide a changeover switching device capable of prohibiting electrification to a coil by opening a cover provided in a control unit.The present invention relates to a changeover switching device 1 comprising: a main circuit unit 10 c...
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JP2023124997A |
To mount a handle to be used from a front side of a changeover switching device in a case where it is desired to change over a supply source of a power source by man power.The present invention relates to a changeover switching device 1 ...
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JP2023120112A |
To provide an interlock structure capable of being installed saving space and being provided at low cost.An interlock structure 1 includes: a conductive case 10 for housing an electric apparatus 20; a control unit 40; a conductive lid un...
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JP7332439B2 |
To provide an earthquake-proof evaluation apparatus for a disconnector which calculates a generation stress at a thrust part through calculation suitable for an actual disconnector and an actual thrust part.A device according to the pres...
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JP7287249B2 |
To provide an insulation barrier fitting structure capable of securing a long insulation distance with an insulation barrier, thereby capable of achieving the miniaturization of a fitting structure.An insulation barrier fitting structure...
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JP7263623B2 |
The present invention provides a contact monitoring device for a vacuum circuit breaker. The contact monitoring device is provided in a vacuum circuit breaker comprising: a vacuum interrupter having a fixed electrode which is fixed in an...
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JP7263515B2 |
The invention relates to an isolation device (1) and to an instrument transformer (3) having such an isolation device (1). The isolation device (1) comprises a drive rod (5), which is movable between a switch-off position and a switch-on...
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JP3241600U |
An object of the present invention is to provide a telescopic discon rod with good workability. A discon rod (1) includes a first rod (2), a second rod (3) connected to the first rod so as to be axially movable relative to the first rod,...
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JP7246262B2 |
To exert a brake function before drive termination and a manual operation function after the drive termination while using a magnet motor as a driving source.An electrically-driven operation device uses a magnet motor 36 as a driving sou...
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JP7239058B2 |
Provided is a bearing holding device that can hold a bearing without increasing the number of components even with a sheet metal frame that is thinner than the thickness of the bearing in the axial direction thereof. A bearing holding ...
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JP7234672B2 |
To provide a disconnector stopper capable of efficiently performing a mechanical locking work for a disconnector by facilitating to insert a locking pin of a mechanical locking mechanism, in a mechanical locking mechanism of a disconnect...
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JP7225890B2 |
To enable an increase in size of a device to be avoided while repulsion between a movable element and a stator is suppressed when a short-circuit current is applied to a contact portion between the movable element and the stator.A ground...
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JP7222975B2 |
A residual load disconnector switch (1) includes a rotary switch body (23), which includes a contact blade (24, 25, 26, 27), that is rotatable about an axis (A) and is arranged between a feed line connection (20) and a discharge line con...
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JP2023019568A |
To facilitate connection work of a pull bar to a striker drive shaft.A switch includes a current-limiting fuse having a blown indicator bar that protrudes when blown, a pull bar that moves in the axial direction as the blown indicator ba...
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JP2022189346A |
To provide a changeover switch that is less prone to a short circuit.A changeover switch that switches a power supply that supplies electricity to a load system including a load to a first power system or a second power system, includes ...
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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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