Trutt, F. C.; Kohler, J. L.; Rotithor, H.; Novak, T.
view article (9.993612)
Sensitive Ground-Fault Protection for Mines. Phase 3. Coordination-Free GFR's for AC Distribution. Mining Research Contract Report.
Pennsylvania State Univ., University park
Bureau of Mines, Washington, DC,
OFR 2-89,
June 22, 1988,
97 p.