High speed mechanical switch displacement testing device

Abstract

The invention relates to a h High speed mechanical switch displacement testing device comprising a spring, a spring baffle plate, a slide block, a contact pin, a contact pin support rack, a rotating disc and an isolation block; the spring baffle plate is fixedly connected with one end of the contact pin support rack; the spring, the contact pin and the slide block are arranged in a cavity of the contact pin support rack; the spring and the slide block are mounted on the contact pin in a sleeving manner, a pin point of a head part of the contact pin runs through an end part of the other end ofthe contact pin support rack, a tail part thereof penetrates beyond the spring baffle plate, one end of the spring is abutted against an inner wall of the spring baffle plate while the other end is abutted against one end of the slide block, the isolation block is mounted on the rotating disc, the isolation block is arranged outside the other end of the contact pin support rack, one end of the rotating disc is fixedly connected with the spring baffle plate after running through the contact pin support rack, the rotating disc is provided with an insulation area and an electric conduction area,and the pin point of the head part of the contact pin can be abutted against the insulation area and the electric conduction area of the rotating disc so as to form a corresponding electric loop circuit. The high speed mechanical switch displacement testing device is compact in structure, reasonable in layout and convenient in assembling and maintaining operation.

Description

technical field [0001] The invention relates to a displacement test device, in particular to a displacement test device for a high-speed mechanical switch. Background technique [0002] The fault clearing time of HVDC circuit breaker mainly depends on the time of mechanical switch - high speed mechanical switch. In order to meet the rapidity requirements of high-voltage DC circuit breakers, the rapidity and accuracy of high-speed mechanical switches when opening and closing are particularly important. [0003] At present, many high-speed mechanical switches at home and abroad adopt electromagnetic repulsion mechanism, which solves the technical problem of fast opening and closing of high-speed mechanical switches. However, since the opening and closing stroke of the high-speed mechanical switch is short, it is difficult to accurately judge the stroke of the high-speed mechanical switch. And because the internal structure of the switch with this structure is relatively comp...

AI Technical Summary

Problems solved by technology

However, due to the short opening and closing stroke of the high-speed mechanical switch, it is difficult to accurately judge the stroke of the high-speed mechanical switch.

And because the internal structure of the switch with this structure is relatively complicated and the voltage is high, it is difficult to add some precision instruments inside the switch to monitor the stroke of the switch

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