Sensitive Ground-Fault Protection

Previous research on the use of sensitive ground-fault interrupting devices on mine utilization systems to improve personnel safety is reviewed. The problems associated with the application of sensitive ground-fault protection (voltage and current considerations, transients, external-flux interferen...

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Bibliographic Details
Main Authors: Trutt, F. C., Morley, L. A., Rufft, D. J.
Format: Conference Proceeding
Language:English
Subjects:
Circuit faults
Current transformers
Electric shock
Monitoring
Relays
RNA
Windings
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Summary:Previous research on the use of sensitive ground-fault interrupting devices on mine utilization systems to improve personnel safety is reviewed. The problems associated with the application of sensitive ground-fault protection (voltage and current considerations, transients, external-flux interference, common-mode currents, harmonics, and leakage currents) are then presented and analyzed. Based upon this information, an experimental approach to sensitive ground-fault interrupting-device evaluation is outlined and the results of conducting these tests on five existing ground-fault interrupters are summarized. This research was supported by U.S. Bureau of Mines Contract J0113009 to The Pennsylvania State University with Mr. D. Ambrose and Mr. M. Yenchek acting as technical project officers.
ISSN:2576-702X
2576-702X