Method for connection and disconnection between high-voltage test tongs and leading-out terminal of high-voltage equipment

Abstract

The invention relates to a method for connection and disconnection between a pair of high-voltage test tongs and a leading-out terminal of high-voltage equipment. The method is performed through a mechanical arm. The mechanical arm comprises a high-voltage test tong mechanical arm body, a telescopic insulated rod and a manual operation mechanism. The high-voltage test tong mechanical arm body, the telescopic insulated rod and the manual operation mechanism are connected into an operation integrity through a brake cable. Two tong legs of the pair of test tongs are placed in a limited manner through a fixed finger and a traction moving finger. When a handle is moved downwards, the tail end of a tong rotary frame welded piece is drawn to be close to the tail end of a tong fixed frame welded piece through traction of the brake cable, so that a clamping opening of the test tongs is opened; after the pair of test tongs is conveyed to the proper position, the handle is released, under the action of a torsion spring, the clamping opening of the test tongs is closed, so that a conductive terminal is clamped, and then the high-voltage test tong mechanical arm can be disengaged from the test tongs. By the adoption of the method for connection and disconnection between the pair of high-voltage test tongs and the leading-out terminal of the high-voltage equipment, the work efficiency can be greatly improved, and a reliable guarantee is provided for the safety of testing personnel.

Description

technical field [0001] The invention relates to a method for connecting and disconnecting a high-voltage test clamp to and from a high-voltage equipment outlet, which is used for the connection operation of test lines. Background technique [0002] The performance parameter detection of electric high-voltage equipment is a test item that must be carried out every day. Before testing, first connect the test object to the test equipment with the test line. During the test, the connection of the test line should also be replaced according to the test needs. When testing different items, the test line should be replaced again. Therefore, the test line will be replaced very frequently during the power equipment test. [0003] During the high-voltage test, the position of the terminal is usually relatively high, which is not convenient for wiring. Especially like a 220kV transformer, the height of the high-voltage bushing exceeds two meters. The test personnel standing on the ...

AI Technical Summary

Problems solved by technology

It is very dangerous to climb high-voltage bushings with insulating ladders, and many units no longer use them and use high-voltage arm trucks to lift testers for wiring operations

[0004] In addition, frequent switching of test lines will result in very low test efficiency

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