Integrated test device for simulating DC system integrated type grounding fault

Abstract

The invention belongs to the technical field of measurement and particularly relates to an integrated test device for simulating a DC system integrated type grounding fault. The device comprises a test control instrument and an integrated fault simulation generator. The test control instrument is connected to the integrated fault simulation generator and comprises a first shell which is internally provided with a control circuit board. The surface of the first shell is provided with a liquid crystal display screen, a setting panel, an operation button and a master switch. The control circuit board is connected to the liquid crystal display screen, the setting panel, the operation button and the master switch. The integrated fault simulation generator comprises a second shell which is provided with a pointer type voltage meter, a pointer type ammeter and a DC output device, the DC output device is connected to the pointer type voltage meter and the pointer type ammeter through a I section branch, and the DC output device is connected to the pointer type voltage meter and the pointer type ammeter through a II section branch. The integrated test device has the advantages of a wide research range of a test and a quick and efficient process.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to an integrated test device for simulating a comprehensive type grounding fault of a DC system. Background technique [0002] As the power supply source of the secondary system control, protection, signal and automatic devices in the plant, the DC system’s own reliability and safety have a very important impact on the stable operation of the power supply, and the ground fault of the DC system has always been the It is an extremely weak link in the power system. At the same time, there are many devices connected to the DC system and the circuit structure is complex. Various types of faults will occur according to the grounding conditions. The more common ground faults in the DC system include single-point grounding, two-point grounding and multi-point grounding. The fault points include load branch grounding, system grounding and other types. The system operates und...

AI Technical Summary

Problems solved by technology

The system operates under different working conditions, and the consequences of various types of failures are not the same. When it is mild, it may only pose a potential threat and accident hazard to the system, and when it is serious, it will cause a major accident to the secondary system of the entire plant.

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