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Apparatus for and method of detecting high impedance faults on distribution circuits with delta connected loads
Apparatus for and method of detecting high impedance faults on distribution circuits with delta connected loads
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机译:用于检测具有三角形连接负载的配电电路上高阻抗故障的设备和方法
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摘要
A technique for detecting high impedance faults on distribution circuits with delta connected loads is disclosed herein. This technique bases its detection on the status of the third harmonic component in each of the three-phase line currents of the distribution circuit and specifically on a predetermined minimum increase in the amplitude of any one of these components over a continuous predetermined period, whereby to discriminate between a true high impedance fault and a transient disturbance.
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