High altitude indoor high voltage alternating current combined vacuum circuit breaker

A vacuum circuit breaker, internal high voltage technology, applied in the direction of high voltage air circuit breaker, high voltage/high current switch, circuit, etc., can solve the problems of fuse replacement, weak arc extinguishing function, large impact, etc., to improve the operating life, mechanical The effect of small impact and increased creep distance

Inactive Publication Date: 2018-02-23
NINGBO TIAN AN SMART GRID TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large mass of the isolating switch switch, the operating force of the operating mechanism is required to be large, and the impact during the operation is relatively large, which affects the operating life of the switch mechanism. At the same time, the closing curre

Method used

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  • High altitude indoor high voltage alternating current combined vacuum circuit breaker
  • High altitude indoor high voltage alternating current combined vacuum circuit breaker
  • High altitude indoor high voltage alternating current combined vacuum circuit breaker

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Embodiment Construction

[0022] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0023] Such as Figure 1~3 As shown, a preferred embodiment of the present invention includes a base frame 1, and three groups of wiring boards 2 and conductive seats 3 are respectively insulated on both sides of the base frame 1. The wiring board 2 is electrically connected to the incoming cable, and the conductive base 3 is electrically connected to the outgoing cable.

[0024] The key point is that a contact knife 4, a wall-through pole 5 and a vacuum interrupter 6 are sequentially arranged between each group of wiring boards 2 and the conductive seat 3, and an operating mechanism 7 is arranged on the bottom frame 1. A first insulating rod 71 is set between the mechanism 7 and the contact knife 4, a sta...

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Abstract

The invention provides a high altitude indoor high voltage alternating current combined vacuum circuit breaker. The high altitude indoor high voltage alternating current combined vacuum circuit breaker comprises a chassis, three sets of wiring boards and conducting bases are installed at the two sides of the chassis in an insulating mode respectively, the wiring boards are electrically connected to incoming line cables, the conducting bases are electrically connected with outgoing line cables, a touch knife, a wall penetrating polar column and a vacuum arc extinguish chamber are arranged between each set of wiring board and the conducting base in sequence, the chassis is further provided with an operating mechanism, first insulating pull rods are arranged between the operating mechanism and the touch knives, the operating mechanism is further provided with a second insulating pull rod in a linkage mode, the second insulating pull rod is provided with a drive rod in a linkage mode, thedrive rod is provided with a guide rod in a linkage mode, and the guide rod is connected with one end of the vacuum arc extinguishing chamber. The high altitude indoor high voltage combined vacuum circuit breaker has the advantages of being small in operating mechanism operation power, long in machine life, high in arc extinguishing capability, good in protecting effect and small in maintenance and can be more suitable for being used in a bad environment and a high altitude region.

Description

technical field [0001] The invention relates to the field of electric equipment, in particular to a vacuum circuit breaker. Background technique [0002] The wind power generator converts the wind energy into AC power (voltage 690V) through the rotating blades and the generator, and then sends it into the power system through the step-up transformer and 35KV switchgear in the 35KV box transformer. Generally, according to the principle of one machine, one transformer, each The fan is equipped with a 35KV box transformer, and each box transformer needs to be equipped with a 35KV switchgear. The switchgear can be a vacuum load isolating switch-fuse combination in which a load isolating switch and a fuse are integrated, or a high-voltage AC combined vacuum circuit breaker. [0003] Among them, Chinese patent CN201310306091 discloses a combination of vacuum load switch and fuse. The feature of this patent is that an electrical connection formed by a through-wall insulated conduc...

Claims

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Application Information

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IPC IPC(8): H01H33/662H01H33/666
CPCH01H33/66207H01H33/6661
Inventor 钱羽晖柳文玮朱佩龙韩国海欧阳道生
Owner NINGBO TIAN AN SMART GRID TECH CO LTD
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