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WO/2023/171913A1 |
Disclosed is an arc gas discharge device of an air circuit breaker, capable of preventing damage to an arc extinguishing chamber caused by a sharp rise in pressure. The arc gas discharge device of an air circuit breaker, according to one...
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WO/2023/167410A1 |
An air circuit breaker is disclosed. The air circuit breaker, according to an aspect of the present invention, may comprise: an operation unit in which an arc is generated by operating a mover with respect to a stator; an arc extinguishi...
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WO/2023/167437A1 |
Disclosed is an air circuit breaker having an arc cover, capable of preventing a secondary accident caused by arc generation. The air circuit breaker, according to one aspect of the present invention, may comprise: an operation unit in w...
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WO/2023/163410A1 |
Disclosed are an arc chute in which firing from the outside can be blocked and a load break switch comprising same, the arc chute comprising: an arc grid part; two side cover parts spaced apart from each other and overlapping in one dire...
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WO/2023/163822A1 |
A circuit breaker may include a first magnetic actuator connected to a first single-phase vacuum interrupter, a second magnetic actuator connected to a second single-phase vacuum interrupter, and a third magnetic actuator connected to th...
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WO/2023/157079A1 |
Provided is a gas circuit breaker capable of improving the effect of cooling a gas that has reached a high temperature as a result of being blown toward an arc. A gas circuit breaker according to the present disclosure comprises: a sea...
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WO/2023/152205A1 |
The invention relates to a high voltage disconnector switch comprising a fixed first main contact (1) comprising at least one first contact element (4a), a fixed second main contact (2) comprising at least one second contact element (4b)...
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WO/2023/152321A1 |
The invention relates to a fast earthing switch (1) comprising two contacts (2) of which at least one contact (2) is movable in relation to the other contact between a closed position, in which the contacts (2) are connected, and an open...
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WO/2023/147967A1 |
The invention relates to a vacuum interrupter (1) for switching voltages, said vacuum interrupter comprising at least one casing (2) and at least two contact pieces (3, 4), the at least one casing (2) comprising at least one insulator se...
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WO/2023/148895A1 |
In the present invention, a switch unit (20) is connected between a first node (N1) that is electrically connected with a power supply, and a second node (N2) that is electrically connected with a load circuit that receives a supply of p...
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WO/2023/145511A1 |
A DC circuit breaker 25a comprises: a parallel connection part between a mechanical switch 40 and a semiconductor switch 44; and a switch control unit 39 which is connected in series to one side of the parallel connection part. The switc...
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WO/2023/146107A1 |
An actuator in one embodiment may comprise: a driving source; a first rotating element, which rotates around a first rotary shaft by means of the driving source; a second rotating element, which receives driving force from the first rota...
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WO/2023/147191A1 |
An improved circuit interruption system for interrupting a primary circuit includes a secondary circuit disposed in a magnetic field generated by current passing through the primary circuit. In response to a threshold change to the charg...
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WO/2023/144885A1 |
[Problem] To provide a direct-current limiter which is capable of reliably limiting a current and a direct-current interruption system which is capable of more reliably interrupt a direct-current line even in the event of a surge of curr...
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WO/2023/146103A1 |
A manipulator according to an embodiment may comprise: a housing; a rotary unit which is disposed in the housing and has a first rotating shaft; and a linear unit at least a part of which is disposed in the housing and which performs lin...
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WO/2023/138257A1 |
Disclosed is an insulating cylinder apparatus for a vacuum circuit breaker, comprising an insulating housing, an arc quenching device and a driving assembly; a first mounting cavity and a second mounting cavity which are in communication...
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WO/2023/137644A1 |
The present disclosure relates to a fixed contact assembly, an arc extinguish chamber, and a high voltage circuit breaker. The fixed contact assembly comprises: a fixed contact; and a fixed contact holder to which the fixed contact is at...
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WO/2023/138954A1 |
In order to monitor a greenhouse gas density mechanically in a more climate-friendly and cost-effective way, the invention provides a density monitoring method for monitoring the gas density of a harmful gas (10), comprising: a) providin...
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WO/2023/140932A1 |
An insulator that has particular application for enclosing a switching device, such as a vacuum interrupter. The insulator includes a body having a top portion and a bottom portion, and a plurality of ring-shaped sheds extending from the...
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WO/2023/134854A1 |
There is disclosed herein a DC-current breaker switch (200) for a HVDC circuit (10). The DC-breaker switch (200) comprises a main switch (210), a capacitor (220) connected in parallel to the main switch (210) by an inductive conductor (2...
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WO/2023/135639A1 |
A gas circuit breaker according to an embodiment of the present invention comprises a tightly-sealed container, a first arc contact and a second arc contact, an operation mechanism, and a spraying part. The first arc contact and the seco...
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WO/2023/126110A1 |
The invention relates to a switching device (1) with an isolating or earthing function. The switching device (1) comprises an encapsulation housing (3) filled with an insulating gas, a first contact arrangement (5) with a first main cont...
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WO/2023/128188A1 |
An arc elimination device is disclosed. The arc elimination device according to an aspect of the present invention, may comprise: a housing; an arc extinguishing part which is positioned inside the housing and provided with a high-voltag...
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WO/2023/126070A1 |
A circuit interrupter includes a frame, a set of separable contacts that can be generally stated as including a stationary contact and a movable contact, the stationary contact being affixed to the frame, a shaft movably situated on the ...
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WO/2023/127045A1 |
A switch device (1) comprises: a first contact (6); a second contact (18) disposed in parallel to the first contact; and an accident detection unit (16) that operates the first contact to open when an accident is detected. The second con...
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WO/2023/119453A1 |
The purpose of the present invention is to provide a switch the size of which can be reduced. In order to achieve the purpose, this switch is configured to have: a main circuit section which is formed from a vacuum interrupter equipped...
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WO/2023/119358A1 |
This vacuum circuit breaker (50) is provided with: a cylindrical tank (1); a vacuum valve (4) which comprises a movable-side contact (5a), a fixed-side contact (5b), a movable lead (11) electrically connected to the movable-side contact ...
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WO/2023/122403A1 |
A switchgear system includes a switchgear frame and a truck carrying a circuit breaker, which includes a breaker housing, a fixed electrical contact and a movable electrical contact mounted within the breaker housing, an actuator piston ...
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WO/2023/112266A1 |
This status-monitoring system for a circuit breaker spring-operating mechanism of an embodiment comprises a one-dimensional equivalent circuit network-calculating unit, a status-determining unit, and an abnormal-location-specifying unit....
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WO/2023/110262A1 |
The present invention relates to a subsea substation system (100) comprising: an oil-filled water impermeable enclosure (102); an AC-transformer (104), and at least one overcurrent device (106a-d) electrically connected to the AC- transf...
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WO/2023/111216A1 |
The disclosure relates to a power device for use in an electric energy power arrangement (100), said power device (1) comprising a gas chamber (10) adapted to, when in a use state in said power arrangement (100), comprise an insulation g...
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WO/2023/110147A1 |
An ultra-fast moving conductor for use with a circuit breaker is provided. The moving conductor includes a hollow outer stem and a removable core. Multiple removable cores are produced for use with the moving conductor for different purp...
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WO/2023/105704A1 |
A gas circuit breaker according to an embodiment has an insulating nozzle, an exhaust chamber, and an operating rod. The insulating nozzle forms in a fully open state with an opposite contact a first exhaust flow path that causes an arc ...
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WO/2022/208716A9 |
The present invention provides a vacuum valve in which the electric field of the vacuum valve is reduced without impairing reliability, and a production method for the vacuum valve. A vacuum valve (1) comprises a container in which a f...
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WO/2023/100382A1 |
Obtained in the present invention are a storage box and an opening/closing device that make it possible to reduce the weight of the storage box while also preventing foreign matter from entering the storage box. A storage box (91) hous...
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WO/2023/100963A1 |
An arc shield (2) with which a tubular body (10) of a vacuum container (1) is provided comprises: a tubular arc-shield body portion (20) interposed between a fixed-side insulating portion (3a) and a movable-side insulating portion (3b); ...
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WO/2023/097723A1 |
Disclosed in the present invention is a high-voltage vacuum relay. An upper sleeve is arranged at an upper end of a vacuum chamber, and a magnetic driving mechanism is arranged in the upper sleeve; a moving contact is arranged at a lower...
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WO/2023/099030A2 |
An apparatus includes: a plurality of separable load break devices, each separable load break device including: a resettable current interruption device associated with operating states, the operating states including at least a first op...
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WO/2023/097103A1 |
A direct current (DC) hybrid circuit breaker (HCB) includes a current sensor and a variable inductor. In the event of a short circuit fault current reaches a preset threshold, the current sensor will send a tripping signal to a controlle...
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WO/2023/083491A1 |
A high voltage, direct current circuit protection system includes a number n of weakened circuit conductors connected in series to one another and being fabricated in a manner to avoid metal fatigue in response to cyclic current loads. T...
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WO/2023/085658A1 |
A direct current (DC) blocking device is disclosed. In a DC blocking device having a circuit which allows a current from a DC power source to flow through a load, the circuit may comprise: a first switch (SW1) which is connected in serie...
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WO/2023/086179A1 |
An anti-bounce dampener assembly for dampening the closing impact force between vacuum interrupter contacts. The dampener assembly includes a dampening spring positioned within a contact adapter, a guide tube extending through the contac...
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WO/2023/083498A1 |
A vacuum interrupter has a toroidal portion at one or both ends that achieves higher dielectric levels and hence higher interruption levels.
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WO/2023/079592A1 |
A direct current breaking device according to an embodiment has a main breaker and a ladder circuit. The main breaker is inserted into a direct current line. The ladder circuit is connected in parallel to the main breaker. The ladder cir...
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WO/2023/077325A1 |
The present invention relates to the technical field of high-voltage alternating-current circuit breakers, and, in particular, to an integrated high-voltage alternating-current vacuum circuit breaker. The integrated high-voltage alternat...
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WO/2023/075324A1 |
The present invention relates to a stabilization device for a linear motion device. In the present invention, a frame (10) may form a skeleton, and a driving source (20) and a power shaft (22) rotated by the driving source (20) may be in...
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WO/2023/066526A1 |
An actuator (4), which is a part of a combination that includes a pair of circuit interrupters (12, 16), advantageously employs a plurality of Thomson coils (88) that are electrically connected in parallel and that interact with a corres...
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WO/2023/064351A1 |
A circuit interrupter has first and second contacts that are actuatable relative to each other between a closed position wherein a power source and a load are in electrical communication and an open position wherein the power source and ...
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WO/2023/059395A1 |
A system and method for determining the optimal time to perform a pulse test to determine the presence of a fault after a switch opens to clear the fault to prevent generator instability. The method includes detecting the fault, opening ...
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WO/2023/059435A1 |
A vacuum interrupter including a vacuum bottle, a fixed contact extending through one end of the vacuum bottle and a movable contact positioned within the vacuum bottle relative to the fixed contact so that a gap is defined between the f...
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