Bidirectional energy-storage high-speed disjunction contact for extra-high voltage breaker

Abstract

This invention relates to super high voltage breaker probe used in double memory speed break probes, which comprise insulation shell, insulation cylinder outside shell and static and dynamic probes set on insulation cylinder, wherein, the static and dynamic probes adopt spring float connection to make the gate move reversely against spring energy.

Description

technical field [0001] The invention relates to a contact used for an ultra-high voltage circuit breaker, in particular to a bidirectional energy storage high-speed breaking contact for the ultra-high voltage circuit breaker. Background technique [0002] Power equipment switches often use circuit breakers. When used as high-voltage or extra-high voltage circuit breakers, the faster the breaking speed and the shorter the time, the better, because it is easy to break when the moving contacts and static contacts of high-voltage electrical equipment are close to each other. When an arc is generated, the faster the breaking speed, the shorter the arc generation time and the less damage to the equipment. In addition, a long-distance live line with no load or a small load will form a very high operating overvoltage in the power grid when it is opened and closed. If these overvoltages are not limited by a special device, then excessive insulation measures must be taken in the UHV ...

AI Technical Summary

Problems solved by technology

However, the contact can only be connected to the closing resistor when closing, which can avoid the closing overvoltage, but cannot avoid the opening overvoltage phenomenon.

At the same time, due to the large number of contacts of the contact, the cooperation between the contacts takes a long time, resulting in a long overall running distance of the moving mechanism and a large energy consumption of the operating mechanism.

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