High voltage AC switchgear

A high-voltage AC and switchgear technology, applied in the busbar/line layout, substation/distribution device casing, etc., can solve the adverse effects of high-voltage AC switchgear reliability, difficult volume of high-voltage AC switchgear, and refusal of interlocking devices to move, etc. problems, to achieve the effect of reducing the number of switching elements, improving reliability, and reducing loop resistance
CN106099656BActive Publication Date: 2018-07-31TOP DIRECTION LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
TOP DIRECTION LTD
Publication Date
2018-07-31

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Abstract

The invention relates to a high-voltage alternating current switch cabinet. The high-voltage alternating current switch cabinet comprises a vacuum switch and an integrated switch, wherein the integrated switch is placed among a main bus, the vacuum switch and a pre-ground bus; the vacuum switch is electrically connected with a branched main bus; the branched main bus is electrically connected with the pre-ground bus; the integrated switch can connect the vacuum switch with the main bus or enables the pre-ground bus to be connected to the ground; when the integrated switch connects the vacuum switch with the main bus, the integrated switch, the vacuum switch and the branched main bus form a main loop; and when the integrated switch enables the pre-ground bus to be connected to the ground, the vacuum switch and the main bus are isolated, and the integrated switch and the pre-ground bus form a ground loop. According to the high-voltage alternating current switch cabinet, only two switch elements of the vacuum switch and the integrated switch are included, thus the number of the switch elements is decreased, a circuit structure is simplified, the overall volume of the high-voltage alternating current cabinet is reduced, and the reliability of the high-voltage alternating current cabinet is improved; and meanwhile an interlocking device is not needed for use, and thus the problems of faults of failure and misoperation of the interlocking device are avoided.
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Description

technical field

[0001] The invention relates to the technical field of high-voltage AC switchgear, in particular to a high-voltage AC switchgear with a voltage range of 3-40.5KV for receiving and distributing electric energy. Background technique

[0002] High-voltage AC switchgear is a complete set of equipment that assembles various high-voltage electrical components and control, measurement, and protection devices in a metal-enclosed cabinet. Its function is to realize the control, protection, and isolation of high-voltage circuits through the separation and closing of high-voltage switches. , grounding, and complete the transmission of electric energy.

[0003] The reliability and safety requirements of electric energy transmission are very high. Circuit breakers, load switches, isolating switches, and grounding switches in high-voltage AC switch cabinets are the most basic high-voltage components to complete electric energy transmission. Vacuum interrupters are used as ...

Claims

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