Voltage signal receiving clip used for arrester resistive current test and application method

Abstract

The invention relates to a voltage signal receiving device used for an arrester resistive current test and an application method. A receiving clip is in the shape of an alligator clip, and includes amain clip and an auxiliary clip which are rotatably connected relative to each other; the head of the main clip extends outwards and is provided with a crossed screwdriver head, the tail end of the crossed screwdriver head abuts against a spiral spring, and the spiral spring is movably embedded in the main clip; the inner side of an end part of the auxiliary clip is provided with a plurality of alligator teeth along a length direction; each of tail parts of the main clip and the auxiliary clip is provided with an insulating bushes in a sleeving manner; and the tail part of the main clip is also provided inwards with a connecting hole used for connection with an electric power test line, and electric conduction between the connecting hole and the crossed screwdriver head can be realized. The beneficial effects of the voltage signal receiving device are that while the device is firmly fixed at the lower end of an air switch to be tested, a conductive part of the device can be in full contact with a lower end conductive part of the air switch to be tested, thereby reliably obtaining voltage.

Description

technical field [0001] The invention relates to a voltage signal receiving device for arrester resistive current testing. Background technique [0002] The arrester resistive current test is a test item regularly carried out by substation inspection personnel on the arrester, and the arrester resistive current tester is required to complete the test. A voltage quantity is required as a reference signal during instrument testing, and usually the voltage signal is taken from the lower end of the measuring circuit breaker in the voltage transformer terminal box. [0003] When connecting the test wiring for voltage access to the measurement circuit breaker, do not disconnect the measurement circuit breaker or remove the wiring at the lower end of the circuit breaker, otherwise the measurement circuit will lose power. Therefore, at present, a test wire with an alligator clip is usually used to receive a voltage signal, and the alligator clip is directly clamped to the conductive...

AI Technical Summary

Problems solved by technology

However, due to the structure of the crocodile clip cannot fully contact the conductive part of the measuring circuit breaker, the crocodile clip and the conductive part of the measuring circuit breaker often have poor contact, resulting in the inability to obtain the voltage during the use of the arrester resistive current tester. Circumstances that caused a test interruption

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