An Outdoor High Voltage Vacuum Isolation Circuit Breaker with Slewing Function

Abstract

The invention provides an outdoor high-voltage vacuum isolation circuit breaker with a rotation function. The circuit breaker comprises a bracket, and a polar column unit, a spring operating mechanism and a rotation operating mechanism which are mounted on the bracket, wherein the spring operating mechanism drives the polar column unit to carry out switch-off and switch-on operations; and the rotation operating mechanism drives the polar column unit to rotate so as to drive the polar column unit to carry out an isolation operation. The outdoor high-voltage vacuum isolation circuit breaker with the rotation function provided by the invention has the beneficial effects as follows: the spring operating mechanism and the rotation operating mechanism are mounted on the bracket, so that the functions of splitting or integrating load current, and removing fault current of the isolation circuit breaker, as well as the functions of rotating the polar column unit for isolating the switch are realized, so that the practicability of the product and the power supply reliability are improved consequently.

Description

technical field [0001] The invention relates to an outdoor high-voltage vacuum isolation circuit breaker with a rotary function. Background technique [0002] At present, the main problems of domestic outdoor high-voltage switches are as follows: [0003] 1. Functional defects: Outdoor vacuum circuit breakers cannot form a visible fracture to the line during power outage maintenance, and must be used in conjunction with outdoor isolating switches, which increases the user's investment in isolating switches. [0004] 2. Defects in sealing: Outdoor high-voltage vacuum circuit breakers, especially products above 40.5kV, because the pole unit adopts the method of assembling the arc extinguishing chamber, current transformer, and conductive parts inside the porcelain bottle, the assembly structure of the parts cannot be completely sealed The effect of entering moisture will affect the insulation performance of the arc extinguishing chamber, current transformer, inner wall of the...

AI Technical Summary

Problems solved by technology

[0003] 1. Functional defects: Outdoor vacuum circuit breakers cannot form a visible break on the line during power outage maintenance, and must be used in conjunction with outdoor isolating switches, which increases the user's investment in isolating switches

[0004] 2. Defects in sealing: Outdoor high-voltage vacuum circuit breakers, especially products above 40.5kV, because the pole unit adopts the method of assembling the arc extinguishing chamber, current transformer, and conductive parts inside the porcelain bottle, the assembly structure of the parts cannot be completely sealed The effect of entering moisture will affect the insulation performance of the arc extinguishing chamber, current transformer, inner wall of the porcelain bottle and insulating silicone grease, and reduce the oxidation and conductivity of the surface of the conductive parts.

[0005] 3. Defects in the assembly process: The pole unit and the operating mechanism unit of the outdoor high-voltage vacuum circuit breaker do not adopt a modular design, resulting in cumbersome assembly, cumbersome maintenance, reduced reliability, and high investment and use costs

[0006] The above defects greatly reduce the reliability of the product, increase the occurrence of faults, and lead to regional power outages

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