Improvement of Ground-Fault Relaying Selectivity through the Application of Directional Relays to High-Voltage Longwall Mining Systems
The continuing trend toward larger longwall mining systems has resulted in the utilization of higher system voltages. The increase in system voltage levels has caused the industry to face complexities not experienced with the lower-voltage systems. One such complexity arises from the larger system c...
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Virginia Tech
2011
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| Online Access: | http://hdl.handle.net/10919/9888 http://scholar.lib.vt.edu/theses/available/etd-04302004-010951 |