TY - BOOK ED - The institution of electrical engineers. TI - Power system protection SN - 0852968345 AV - TK3226 .P68 1995 PY - 1995/// (Repr. 1997)] CY - London PB - The Institution of Electrical Engineers KW - Electric power systems KW - Protection N1 - v. 1. Principles and components -- volume 2. Systems and methods -- volume 3. Application -- volume 4. Digital protection and signalling ER -