Relay protection loop verification system

Abstract

The invention provides a relay protection loop verification system, which comprises a main control chip, various types of relay protection verification loops and an acquisition circuit, wherein the output end of the main control chip is connected with the relay protection verification loops to control the relay protection verification loops to perform verification; the input end of the acquisition circuit is connected with the relay protection verification loops, and the acquisition circuit is used for acquiring the verification result of the relay protection verification loops; and the output end of the acquisition circuit is connected with the input end of the main control chip, and the acquisition circuit is used for sending the verification result to the main control chip. According to the relay protection loop verification system provided by the embodiment of the invention, the main control chip can verify the relay protection loop based on various relay protection verification loops, so that integrated verification is realized; and a tester can verify various relay protection loops based on the relay protection loop verification system, time and labor are saved, the verification personnel can conveniently carry out field verification, and the verification system is very convenient and efficient.

Description

technical field [0001] The invention relates to the technical field of relay protection, in particular to a relay protection circuit verification system. Background technique [0002] Relay protection is the first line of defense for the safe and reliable operation of the power grid, and the correctness of its circuit is directly related to the stable operation of the power system. There are more than 17.8 million relay protection devices in substations of the national main network. In the past, the verification of relay protection circuits mainly relied on manual work, with low automation and poor reliability. The work energy efficiency has been unable to meet the rapid growth of power equipment verification. Therefore, the verification of the relay protection circuit of the power system must be completed by advanced intelligent verification methods, so as to reduce labor intensity, improve work efficiency, and enhance personnel safety. [0003] At present, the verificatio...

AI Technical Summary

Problems solved by technology

However, the common problems between the loops cannot be found in the verification of the single-function loop process, the functions are relatively single, and the scalability is poor

In addition, there is the disadvantage that different equipment needs to be used for different loops, which makes it difficult to make comprehensive decision-making analysis on the verified result data

In the process of calibration, on the one hand, the calibration personnel frequently replace the calibration equipment, which is time-consuming and laborious, and the calibration efficiency is low; judgment and analysis of comprehensive information

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