Independent multichannel partial discharge analysis platform

Abstract

The invention provides an independent multichannel partial discharge analysis platform, and the platform comprises a signal processing display unit, a high-speed collection unit, signal conditioning units, and program control filtering units. The signal processing display unit is connected with the high-speed collection unit, the high-speed collection unit is connected with the signal conditioningunits, and the signal conditioning units are connected with the program control filtering units. The number of the signal conditioning units is not less than two, and the number of the program control filtering units is not less than two. The signal conditioning units are connected with the high-speed collection unit. The platform achieves the independent multichannel digital-type partial discharge measurement, and carries out the synchronous sampling, processing and display, wherein the synchronization error is less than 1ns. The platform is high in sampling rate, and employs multichannel simultaneous collection, wherein the maximum sampling rate of each channel is 80MS / s. The platform can achieve the effective discrimination of a discharge signal in a 0.3m range, and is widely used in partial discharge testing of high-voltage power equipment, including equipment delivery inspection, acceptance test, detection after overhaul, and pre-testing. The platform is provided with an expert analysis system. The platform can accurately analyze a partial discharge quantity of equipment, and can analyze the insulating conditions of the equipment.

Description

technical field [0001] The invention relates to the technical field of partial discharge detection and analysis, in particular to an independent multi-channel partial discharge analysis platform. Background technique [0002] With the development of the economy, the application of electric power is becoming more and more extensive, and power failure will undoubtedly cause heavy losses to power users. The substation is an indispensable part of the power system's power generation, transmission, and distribution projects, so the safe operation of the substation is an important part of the safe operation of the power system. If an accident occurs in the substation, it will directly affect the safe operation of the power grid, forcing the operation of the power system. In severe cases, the power supply will be interrupted, causing large-scale power outages. Substation operation is ordinary. [0003] Since the current high-voltage equipment is developing towards large capacity a...

AI Technical Summary

Problems solved by technology

[0005] With the development of digital acquisition technology, multi-channel partial discharge instruments have been developed. Now 2, 4, 6, and 8-channel partial discharge instruments have appeared and applied in the industry, and more 12-channel and 24-channel have also been reported, but most Many multi-channel devices are used in online monitoring and other fields, and the sampling rate is low and the measurement frequency band is narrow

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