TEST SYSTEM AND TEST METHOD FOR PROTECTIVE RELAY
To provide a test device and a test method, capable of objectively and accurately testing a protective relay installed in a site electric facility.SOLUTION: A test system 100 comprises a protective relay tester 102, a controller 104, and a temperature sensor 106 that measures a temperature of an env...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a test device and a test method, capable of objectively and accurately testing a protective relay installed in a site electric facility.SOLUTION: A test system 100 comprises a protective relay tester 102, a controller 104, and a temperature sensor 106 that measures a temperature of an environment in which a protective relay 202 is installed. The protective relay tester supplies a predetermined test signal to the protective relay, acquires an operation signal output from the protective relay, calculates an operation time from the operation signal, and then transmits it, and the control device receives the operation time, a relay drive voltage and the measured temperature, calculates an evaluated value from the operating time, the relay drive voltage and the measured temperature, compares the evaluated value with a predetermined reference value, and thus determines the state of the protective relay. Consequently, the quality of the protective relay can be determined objectively and accurately.SELECTED DRAWING: Figure 1
【課題】現場電気設備に設置された保護継電器を、客観的に精度よく試験することができる試験システム及び試験方法を提供する。【解決手段】試験システム１００は、保護継電器試験器１０２と、制御装置１０４と、保護継電器２０２が設置された環境の温度を測定する温度センサ１０６とを含み、保護継電器試験器は、保護継電器に所定の試験信号を供給し、保護継電器から出力される動作信号を取得し、動作信号から動作時間を算出して送信し、制御装置は、動作時間、リレー駆動電圧及び測定温度を受信し、動作時間、リレー駆動電圧及び測定温度から被評価値を算出し、被評価値と所定の基準値とを比較することにより、保護継電器の状態を判定する。これにより、保護継電器の良否を客観的に精度よく判定できる。【選択図】図１ |
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