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High-speed mechanical switch and high voltage electric power system using the same

A mechanical and rapid technology, applied in the direction of electric switches, high-voltage air circuit breakers, high-voltage/high-current switches, etc., can solve the problems of large operating power of the operating mechanism, high height of a single switch module, and high overall height, and achieve outstanding essence The effect of sexuality

Inactive Publication Date: 2017-10-20
SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fast mechanical switch is composed of a vacuum interrupter and an electromagnetic repulsion mechanism. The interrupter and the electromagnetic repulsion mechanism are connected by insulating rods. At high voltage levels, multiple modules need to be connected in series, and the overall height is too high; second, the mass of the moving parts is large, and the operating work required by the operating mechanism is large, and due to the excessive impact force, it is easy to cause damage to the insulating rods and components in the arc extinguishing chamber. damage

Method used

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  • High-speed mechanical switch and high voltage electric power system using the same
  • High-speed mechanical switch and high voltage electric power system using the same

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Embodiment Construction

[0034] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

[0035] Such as figure 1 As shown, a fast mechanical switch includes an incoming board 1, a vacuum interrupter 2, an insulating support rod 3, an outgoing board 4, an opening coil 5, a repulsion plate 6, a transition board 7, a closing coil 8, a support Rod 9, bistable disc spring 10, oil pressure buffer 11, post insulator 12, isolation transformer TV, rectifier module D, energy storage ca...

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Abstract

The invention provides a high-speed mechanical switch and a high voltage electric power system using the same. The high-speed mechanical switch includes a vacuum arc-extinguishing chamber and an electromagnetic repulsion mechanism, the electromagnetic repulsion mechanism includes a repulsion disc, an opening coil, a closing coil and a secondary discharge circuit connected with the opening coil, a moving contact of the vacuum arc-extinguishing chamber is directly fixedly connected with the repulsion disc, and the repulsion disc is located between the opening coil and the closing coil and can move vertically under the function of electromagnetic repulsion. An insulating pull rod between the vacuum arc-extinguishing chamber and the electromagnetic repulsion mechanism is cancelled, the mass of moving components is reduced, opening and closing speed is improved, opening and closing time is shortened, and mechanical shock during opening and closing action is reduced.

Description

technical field [0001] The invention relates to the technical field of high-voltage power systems, in particular to a fast mechanical switch and a high-voltage power system using the fast mechanical switch. Background technique [0002] In the current high-voltage power system, when a short-circuit fault occurs in the line, the short-circuit current is extremely large, which has exceeded the breaking capacity of the current fast mechanical switch. In addition, due to the excessive short-circuit current, when the fast mechanical switch is breaking, Its service life will be shortened sharply, and it needs to be replaced in time, resulting in high cost of line maintenance. [0003] In order to reduce the short-circuit current of the high-voltage transmission system and improve the life of the fast mechanical switch, a current-limiting reactor is connected in series in the system to reduce the amplitude of the short-circuit current and reduce the requirements for the breaking ca...

Claims

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Application Information

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IPC IPC(8): H01H33/38H01H33/664H01H33/53
CPCH01H33/38H01H33/53H01H33/664
Inventor 肖风良宫瑞磊谢文刚李伟许宝波
Owner SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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