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Design of test system for AC filter relay |
Wang Junxia, Chen Zhigang, Ma Yicheng |
XJ Electric Co., Ltd, Xuchang, He'nan 461000 |
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Abstract In the paper, firstly, the AC filters which are applied in converter station and the mixed sampling status of AC filter relays are analyzed. And the existing problem that the output mixed sampling signal is out of sync in fault simulation test of unbalance protection of mixed sampling relay is analyzed. Then, a new test system is designed. The system desigs a new test method for AC filter relay with mixed-sampling, and solves the difficulty that the output mixed sampling signal is out of sync of mixed-sampling functional test of AC filter relay. The applying result in engineering indicates that the adaption of the test system may effectively solve the signal sampling synchronism in the functional test of mixed-sampling AC filter relay and can greatly improve the test accuracy.
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Received: 12 August 2019
Published: 08 January 2020
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