Movable multifunctional grounding device test system

Abstract

The invention discloses a mobile multifunctional grounding device testing system, which includes a control module and a voltage regulating module connected to the control module, a DC module and an AC module; in the working state, the system can be injected into the grounding network according to the needs of the test work. Power frequency current signal or DC current signal, strong anti-interference ability, high measurement accuracy, and high current test, can realize complex geological structure areas such as uniform and uneven soil resistivity, grounding resistance, surface potential gradient, contact potential difference, Accurate testing of grounding parameters such as step voltage difference. The advantages of the present invention are: the generated large power frequency current has a higher measurement signal-to-noise ratio, and the current-carrying depth of the ground surface is deeper, which is closer to the actual system short-circuit current flowing into the ground network; it can generate hundreds of amperes DC large current, has a high measurement signal-to-noise ratio for stray current in the ground.

Description

technical field [0001] The invention relates to the field of measurement of grounding parameters specialized in overvoltage and grounding technology, in particular to a mobile multifunctional grounding device testing system. Background technique [0002] Grounding device is also called grounding integration device: a device that forms an electrical connection between electrical equipment or other objects and the ground. (Building Electrical Construction Technology). The grounding device consists of grounding electrodes (plates), grounding busbars (indoors, outdoors), grounding downconductors (grounding jumpers), and frame grounding. It is used to achieve the purpose of connecting the electrical system to the earth. The metal object that is in direct contact with the earth to realize the electrical connection is the ground electrode. It can be an artificial grounding pole or a natural grounding pole. The grounding electrode can be given some electrical function, such as s...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that when measuring the grounding of high-current equipment, it is difficult to eliminate the interference of stray currents in the ground network by the traditional power frequency current method to measure the grounding resistance, and the required current riser is bulky and heavy, and the test cable is thick and heavy. Wiring is difficult and consumes a lot of manpower and material resources. The purpose is to provide a mobile multi-functional grounding device test system to solve the problem of miniaturization of large-current grounding test equipment

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