Double-air-chamber high-voltage switch air box

Abstract

The invention discloses a double-air-chamber high-voltage switch air box. The switch air box comprises a first air chamber, a second air chamber and a separating device, and the separating device is arranged between the first air chamber and the second air chamber for separating; an insulator is arranged on the separation device, a bus is mounted at the end part of the insulator, and the other end of the bus is mounted in a bus socket; and a flange is installed at the outer end of the first air chamber, and a chain wheel is installed at one end of a rotating shaft. According to the invention, the first air chamber and the second air chamber are disconnected and connected in a rotary plug-in manner, so that the problem of poor temperature rise and heat dissipation is solved, the electric field intensity of electric field distribution is improved, the problems that an existing sealing sleeve is poor in sealing performance, and a sealing ring is prone to abrasion to cause air leakage are solved, the sealing performance is improved, and the air leakage phenomenon is avoided; and disconnection and connection of a disconnecting switch are realized among the three phases in a chain manner, so that the problem of inconsistency of the three phases is solved, and the problem that a solid-sealed polar pole is not beneficial to heat dissipation is solved.

Description

technical field [0001] The invention relates to a high-voltage switch gas box, in particular to a double-chamber high-voltage switch gas box. Background technique [0002] At present, the high-voltage switch gas tanks on the market all use one gas chamber. If the circuit breaker switch has a short-circuit fault or gas leakage occurs in the gas tank, the entire power distribution system will not be able to operate. Moreover, many isolating switches on the market use the rotary motion of the knife switch to realize breaking or connecting, which cannot guarantee the current and temperature rise requirements of the product. At the same time, the rotary knife switch method is not very uniform and reliable in the electric field. Many circuit breakers use solid-sealed poles, which is not conducive to heat dissipation. The taper connection method of the moving end of the vacuum interrupter is prone to heating. The high-voltage switch gas box uses one gas chamber. If the circuit br...

AI Technical Summary

Problems solved by technology

[0002] At present, the high-voltage switch gas tanks in the market all use one gas chamber. If the circuit breaker switch has a short-circuit fault or gas leakage occurs in the gas tank, the entire power distribution system will not be able to operate.

Moreover, many isolating switches on the market use the rotary motion of the knife switch to achieve breaking or connecting, which cannot guarantee the current and temperature rise requirements of the product.

At the same time, the rotary knife switch method is not very uniform and reliable in the electric field.

Many circuit breakers use solid-sealed poles, which is not conducive to heat dissipation. The taper connection method of the moving end of the vacuum interrupter is prone to heating. The high-voltage switch air box uses one air chamber. If the circuit breaker switch has a short-circuit fault or an air leak occurs, the entire power distribution system will not be able to operate.

If the air box occurs when the lower air chamber leaks, and the upper air chamber does not leak, the entire power distribution system can operate safely. Many isolating switches on the market use the rotary motion of the knife switch to realize breaking or connecting. The area is not very large, the place in contact is prone to heat, and the electric field is not very uniform and reliable

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