Fixing device for grounding of test instrument

Abstract

The invention relates to a fixing device for grounding of a test instrument. The fixing device comprises a device base, a device pedestal, a strong magnet and a lead mechanism. The device pedestal isarranged at the bottom of the device base; an upper half part of the device base is a solid body, and the lower half part of the device base is a hollow body; the strong magnet is arranged in the hollow body and is arranged on the device pedestal; and the lead mechanism is connected with the solid body. The device can be arranged on a metal shell of a high-voltage cabinet, a grounding wire of thetest instrument is connected to the lead mechanism, the device base and the device pedestal are attracted to the metal shell of the high-voltage cabinet through the strong magnet, connection with themetal shell of the high-voltage cabinet is achieved, and grounding of the test instrument is realized; and the device is convenient to manufacture, disassemble, assemble and carry, can be transferredalong with transfer of a test site, realizes rapid grounding of the test instrument, is time-saving and labor-saving, enables an overhaul test to be more convenient and rapid, improves overhaul efficiency, and improves safety of the test instrument and test personnel.

Description

technical field [0001] The invention relates to the technical field of grounding devices for testing instruments, and more specifically relates to a fixing device for grounding of testing instruments. Background technique [0002] Grounding refers to the neutral point of the power system and electrical device, the exposed conductive part of the electrical equipment and the conductive part outside the device are connected to the ground through a conductor. According to its working principle, it is mainly divided into two categories: protective grounding and working grounding. [0003] When conducting electrical preventive tests and relay protection tests on high-voltage cabinets, it is necessary to use different test instruments. Sometimes, in order to ensure the production of electricity, it is necessary to conduct direct resistance tests, withstand voltage tests, and review and calibration of power-off high-voltage cabinets at the same time. test etc. In order to protect t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a fixing device for grounding of testing instruments to solve the problem that the high-voltage cabinets in the prior art have no special grounding point, which causes the testing instruments to be unreliably grounded and causes safety risks of electric shock to test personnel.

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