Relay protection tripping matrix verification system

Abstract

The invention discloses a relay protection tripping matrix verification system, which comprises a verification instrument, the verification instrument is in communication connection with a plurality of acquisition terminals, and the acquisition terminals are accessed to output nodes of a relay protection device and are used for acquiring relay action signals; the calibration instrument is electrically connected with the local alarm and the relay protection tester, and the calibration instrument is in communication connection with the mobile terminal and the upper computer. When testing is carried out through the calibrator, only one test is carried out on each type of protection, secondary wiring on the opposite side does not need to be calibrated, synchronous testing can be carried out on multiple paths of test branches by adopting the wireless radio frequency technology, a large amount of redundant and repeated work is reduced, errors of operators are reduced, the protection calibration efficiency is greatly improved, and the test cost is reduced. Moreover, the verification time can be greatly shortened, and all time and sequence conditions of the tripping outlet relay can be completely recorded.

Description

technical field [0001] The invention relates to the technical field of power operation and maintenance, in particular to a relay protection trip matrix check system. Background technique [0002] In conventional substations, the number of main transformers is large, and the protection of the main transformers needs to be verified during the regular inspection process. There are many trip logics. At the same time, the trip matrix verification is an extremely traditional Chinese medicine work, but the mainstream operation in the trip matrix operation is through the multimeter. The on-off of the exit node is measured, and during the verification process, only one exit node can be measured at a time, and the coordination relationship between different exit relays on the action time limit cannot be determined. The relay time limit cannot be effectively verified, and the secondary line needs to be independently calibrated, resulting in cumbersome operation procedures and extremely...

AI Technical Summary

Problems solved by technology

[0005] In view of the current manual verification method of the trip matrix, only one time-limited exit node can be measured each time during the verification process, and it is impossible to determine the cooperation relationship of different exit relays in the action time limit, and it requires the cooperation of multiple people and multiple repetitions at the same time. Due to the technical problems of low calibration efficiency and permanent operation, this application proposes a relay protection trip matrix calibration system

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