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020 _a0852265565
082 _a621.3178 M398A
100 _aMASON,C.RUSSELL
245 0 _aART AND SCIENCE OF PROTECTIVE RELAYING
260 _aNEW DELHI
_bWiley
_c1983
300 _ap.410
650 _aTRANSFORMER PROTECTION
650 _aWIRE-PILOT RELAYS
942 _cSW