Nuclear power plant driving mechanism insulation and direct resistance tester

Abstract

The invention discloses an insulation and direct resistance tester for a drive mechanism of a nuclear power plant, comprising: an insulation resistance tester, a direct resistance tester and a switching control device; the insulation resistance tester is connected to a drive mechanism of a nuclear power plant to detect the insulation resistance of the drive mechanism The DC resistance tester is connected to the drive mechanism of the nuclear power plant to test the DC resistance of the drive mechanism of the nuclear power plant; the switching control module is connected to the insulation resistance tester and the DC resistance tester respectively, and controls the insulation resistance tester and the DC resistance tester to work in turn. The invention can quickly and efficiently measure the insulation coefficient and direct resistance parameters of hundreds of driving mechanisms in the nuclear power plant reactor. Significantly reduces manpower and time costs and improves staff safety.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant component testing, in particular to an insulation and direct resistance tester for a driving mechanism of a nuclear power plant, which is used for measuring the insulation coefficient and direct resistance parameters between coils of the driving mechanism of a nuclear power plant. Background technique [0002] The driving mechanism of nuclear power plant is a device used to control the position of nuclear fuel control rods. The start-up, power regulation, compensation of residual reactivity, shutdown and accident emergency shutdown of the power plant are all realized by changing the position of the control rods. Among them, the driving mechanism of a nuclear power plant is generally composed of five major components: a pressure-resistant casing, an electromagnetic assembly, a moving assembly, a driving rod, and a position indicator. Among them, the electromagnetic component and the pos...

AI Technical Summary

Problems solved by technology

In the prior art, instruments such as withstand voltage testers and insulation resistance testers are used to measure the insulation between coils; instruments such as multimeters are used to measure point by point to obtain the direct resistance value; however, the driving mechanism of nuclear power plants requires simultaneous testing of direct resistance and insulation. Traditional measuring equipment can only measure DC resistance and insulation separately

In addition, traditional nuclear power plant reactors are often equipped with hundreds of identical driving mechanisms at the same time, and there are a lot of radioactive substances. Therefore, if the nuclear power plant drive is tested by a withstand voltage tester and an insulation resistance tester, it will not only consume a lot of manpower. ,Time costs

And the safety of staff cannot be guaranteed

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