A DC Integrated Test Platform

Abstract

The invention belongs to the technical field of power equipment reliability evaluation, and particularly relates to a DC comprehensive test platform, including a first host computer, a second host computer, a comprehensive test module, an insulation verification module, a ground parameter inspection module, a data communication interface and The power supply module, the first upper computer controls the comprehensive test module, the insulation verification module and the ground parameter inspection module through the data communication interface, and analyzes and processes the collected and returned data, and the comprehensive test module is used for testing input The output voltage, current and ripple coefficient are collected, analyzed and processed and uploaded to the first host computer. The present invention can be used in an integrated or separate module. When the line is live, it does not stop power supply, does not throw the line, and does not untie the handle. The ground fault leakage current is used to quickly search for the ground fault point, which greatly reduces automation and The downtime of electrification system equipment produces significant economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of reliability evaluation of power equipment, and particularly relates to a direct current comprehensive test platform. Background technique [0002] The current comprehensive characteristic tester in China is that the load is separated from the voltage regulating device, which cannot be used independently and is inconvenient to use. In addition, users rely on manual resistance arrays to simulate grounding when verifying the insulation online monitoring device. At times, the resistance is manually connected to the system by manual selection, so it is inevitable that there will be a great safety hazard and too many lines will pose a security threat to the system; but as the scale of the substation becomes larger and larger, the distributed capacitance we ignore also It will increase accordingly. At this time, if a grounding occurs at this time, the distributed capacitance will change in charge and discharge s...

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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