HARMONIC EFFECTS OF WATTHOUR METER TYPE INDUCTION DISC OVERCURRENT RELAY.

Hui Yung Chu, Faa Jenq Lin, Ching Lien Huang

研究成果: 會議貢獻類型會議論文同行評審

摘要

The manner in which harmonic currents affect the current-time characteristic of the watt-hour-meter-type induction disc-overcurrent relay is shown. The torque-current model of the relay is derived and then proved qualitatively by a designed harmonic generator. Test results show that when the input current is in pure sinusoidal, high-order harmonic current will decreases the operating time. When the input current contains harmonic components, if the amplitude of high-order harmonic current is not higher than that of the fundamental frequency current, the error of operating time is not obvious.

原文???core.languages.en_GB???
頁面634-637
頁數4
出版狀態已出版 - 1985

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