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Extra-high-voltage breaker permanent-magnet locked hydraulic operating mechanism

A technology of hydraulic operating mechanism and circuit breaker, which is applied in the direction of protection switch operation/release mechanism, circuit, electrical components, etc. It can solve the problem of unstable floating state of circuit breaker, achieve high reliability, avoid explosion, and complete functions

Inactive Publication Date: 2009-01-21
王光顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the characteristics of the high-voltage circuit breaker require a reliable locking state after the operation is completed and until the next operation, and the locking of the energy storage type hydraulic operating mechanism after the operation is also completed by the pressure of the oil. Once the hydraulic device fails voltage, the circuit breaker will inevitably be in an extremely unstable floating state

Method used

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  • Extra-high-voltage breaker permanent-magnet locked hydraulic operating mechanism
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  • Extra-high-voltage breaker permanent-magnet locked hydraulic operating mechanism

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Embodiment Construction

[0020] like figure 1 As shown, the UHV circuit breaker permanent magnet locking hydraulic operating mechanism of the present invention includes a hydraulic cylinder 1 and a power shaft 2 driven by the hydraulic cylinder 1. The hydraulic cylinder 1 is a differential hydraulic cylinder, and the hydraulic cylinder 1 The oil passage port of the rod chamber is connected with the main pressure accumulator 3 through the oil pipe, and the oil passage port of the rodless chamber of the hydraulic cylinder 1 is connected to the main pressure accumulator 3 through the main reversing valve 4, and the two sides of a passage of the main reversing valve 4 are respectively connected by pipelines The oil passage port of the rodless chamber of hydraulic cylinder 1 and the main pressure accumulator 3, the two sides of the other channel are respectively connected to the oil passage port of the rodless chamber of hydraulic cylinder 1 and the fuel tank 5 through pipelines, and the oil outlet of fuel ...

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Abstract

The invention relates to a hydraulic operating mechanism of high pressure circuit-breaker which is a super voltage circuit-breaker permanent magnetism interlock hydraulic operating mechanism. It adds the permanent magnetism interlock apparatus and the control mechanism of the hydraulic converting valve in the differential type hydraulic cylinder operating mechanism.

Description

technical field [0001] The invention relates to a hydraulic operating mechanism of a high-voltage circuit breaker, in particular to a permanent magnetic locking hydraulic operating mechanism of an extra-high voltage circuit breaker. Background technique [0002] Due to the high working voltage and large passing current, high-voltage circuit breakers usually require special hydraulic operating mechanisms as power. The hydraulic operating mechanism of the high-voltage circuit breaker can be divided into two types according to the different operation modes: direct drive type and energy storage type. The direct drive type hydraulic operating mechanism directly pushes the piston by the high-pressure oil generated by the motor and the oil pump. It is often used in occasions where the speed is not high and the operating power is not large. Because UHV circuit breakers require high speed and high operating power, energy storage type hydraulic operating mechanisms are usually used. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/32H01H3/24H01H9/20
Inventor 王光顺
Owner 王光顺
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