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A Study on the Harmonics Effect of Disc-Type Over Current Ground Relay for Emergency Generator Protection
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 Title & Authors
A Study on the Harmonics Effect of Disc-Type Over Current Ground Relay for Emergency Generator Protection
Kim, Kyung-Chul; Kho, Hun;
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When an emergency generator is running, it supplies the power for critical loads. Generator protection requires the consideration of many abnormal conditions that may occur with generators include overvoltages and ground faults. Modern day power systems create harmonics within the electrical network that can have an impact upon the associated protective system. This paper focuses on the analysing of the cause and development of a solution for the malfunction of induction disc type overcurrent ground relay by generation of harmonics during emergency generator operation.
Emergency Generator;Overcurrent Ground Relay;Harmonics Effect;
 Cited by
IEEE Std 446-1995, IEEE Recommended Practice for Emergency and Stand by Power Systems for Industrial and Commercial Applications.

IEEE Std 242-2001, Protection and Coordination of Industrial and Commercial Power System.

IEEE Std 241-1990, IEEE Recommended Practice for Electric Power.

IEEE Std 101-2006, IEEE Guide for Generator Ground Protection.

IEEE Std 141-1993, IEEE Recommended Practice for Electric Power Distribution for Industrial Plants.

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