DC integrated test platform

Abstract

The invention relates to the technical field of power equipment reliability evaluation technology and more particularly to a DC integrated test platform, which comprises a first upper computer, a second upper computer, an integrated testing module, an insulation checking module, a grounding parameter checking module, a data communication interface and a power supply module. The first upper computer is used for controlling the integrated testing module, the insulation checking module and the grounding parameter checking module via the grounding parameter checking module and conducting the analysis treatment on acquired and returned data. The integrated testing module is used for testing input and output voltage and current, acquiring ripple factors, conducting the analysis treatment and uploading data to the first upper computer. According to the technical scheme of the invention, the modules can be integrated together to run or separately operated. By means of the test platform, grounding fault points can be quickly found out by utilizing the grounding fault leakage current, without the need of powering off a line, wiring or disassembling wires in the charged operating state of the line. Therefore, the down-time of the equipment of automation and electrification systems is greatly reduced, so that great economic benefits and social benefits are generated.

Description

technical field [0001] The invention belongs to the technical field of electric equipment reliability evaluation, and in particular relates to a direct current comprehensive test platform. Background technique [0002] The current comprehensive characteristic tester in China is separated from the load and the voltage regulating device, which cannot be used independently, and it is inconvenient to use; in addition, users rely on artificial resistance arrays to simulate grounding when calibrating the insulation online monitoring device. Usually, the resistors are manually selected and connected to the system manually, so there will inevitably be great potential safety hazards and too many lines will pose a security threat to the system; however, as the scale of the substation becomes larger and larger, the distributed capacitance that we ignore is also increasing. It will increase accordingly. At this time, if a little grounding occurs, the distributed capacitance will change ...

AI Technical Summary

Problems solved by technology

[0002] The current comprehensive characteristic tester in China is separated from the load and the voltage regulating device, which cannot be used independently, and it is inconvenient to use; in addition, users rely on artificial resistance arrays to simulate grounding when calibrating the insulation online monitoring device. Usually, the resistors are manually selected and connected to the system manually, so there will inevitably be great potential safety hazards and too many lines will pose a security threat to the system; however, as the scale of the substation becomes larger and larger, the distributed capacitance that we ignore is also increasing. It will increase accordingly. At this time, if a little grounding occurs, the distributed capacitance will change in charge and discharge state, which will cause protection malfunction. In terms of distributed capacitance detection, it is now relying on the distribution of online devices to the system. Capacitance detection, there is no portable device to detect the distributed capacitance of the system or branches, and currently there is no system software to evaluate the risk of distributed capacitance, so a comprehensive DC test platform is needed to perform performance indicators on the equipment used in the DC system Detection, verification of performance indicators and location of ground faults to ensure the safe operation of the DC test platform

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