文档介绍：Chapter C Connection to the HV utility work C1 Contents Supply of power at high voltage C2 1 Power supply characteristics of high voltage C2 utility work Different HV service connections C11 Some operational aspects of HV works C12 Procedure for the establishment of a new substation C14 2 Preliminary informations C14 Project studies C15 Implementation C15 C15 Protection aspect C16 3 Protection against electric shocks C16 Protection of transformer and circuits C17 Interlocks and conditioned operations C19 The consumer substation with LV metering C22 4 General C22 Choice of panels C22 Choice of HV switchgear panel for a transformer circuit C25 Choice of MV/LV transformer C25 The consumer substation with HV metering C30 5 General C30 Choice of panels C32 Parallel operation of transformers C33 Constitution of HV/LV distribution substations C35 6 Different types of substation C35 Indoor substation C35 Outdoor substation C37 Schneider Electric - Electrical installation guide 2005 C - Connection to the HV public work 1 Supply of power at high voltage C2 At present there is no international agreement on precise limits to define “High” voltage. Voltage levels which are designated as “high” in some countries are referred to as “mediu