On-site verification platform of ultrahigh frequency partial discharge on-line monitoring system

Abstract

The invention discloses an on-site verification platform of an ultrahigh frequency partial discharge on-line monitoring system, and the platform is characterized in that a continuous adjustable ultrahigh frequency digital signal simulation source is used for generating a test signal, and transmitting the test signal to a space; the position of the to-be-detected device is geometrically symmetrical to the position of the ultrahigh frequency partial discharge signal standard receiving device, the to-be-detected device is used for monitoring a test signal, generating a monitored first detection signal and sending the first detection signal to the verification and comparison device, and the ultrahigh frequency partial discharge signal standard receiving device is used for monitoring the test signal generating a monitored second detection signal, and sending the second detection signal to the verification and comparison device; and the verification comparison device is used for verifying the first detection signal through the second detection signal. Through the on-site verification platform of the ultrahigh frequency partial discharge on-line monitoring system, the to-be-detected device can be accurately verified without being in a GTEM cell, and the maintenance level of the on-line monitoring device is ensured.

Description

technical field [0001] The present application relates to the field of detection technology, and in particular to an on-site verification platform of a UHF partial discharge on-line monitoring system. Background technique [0002] The UHF partial discharge on-line monitoring system is widely used in GIS, transformers and other substation primary equipment, and is considered to be the most effective means of equipment latent defect monitoring. However, the quality of UHF partial discharge on-line monitoring devices on the market is uneven, and false alarms or missed alarms occur frequently. Therefore, it is necessary to verify the effectiveness of UHF on-line monitoring devices. [0003] The existing UHF partial discharge on-line monitoring system calibration device is located in the GTEM cell and cannot be performed on site. If calibration is required, the on-line monitoring device needs to be dismantled and sent to a professional laboratory, which greatly restricts on-line ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the embodiments of the present application is to solve the problem that the verification device of the existing UHF partial discharge on-line monitoring system is located in the GTEM cell and cannot be performed on site. If verification is required, the on-line monitoring device needs to be removed and replaced Send it to a professional laboratory for development, which greatly restricts the maintenance level of the online monitoring device

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