Electrical mains supply engineering | Archive Titles

Table 1: The implications of LV or HV metering
LV metering	HV metering
REC owns and maintains 11 kV intake switchgear and transformers	Client owns and maintains 11 kV distribution switchgear and transformers
REC controls access to substation(s)	Client controls access to distribution substations
Metering after transformer, losses not metered	Metered before transformer, losses paid for by client
Maximum transformer size 1000 kVA, but may have more than one	Transformer rating and number determined by m&e consultant
Transformers invariably oil-filled indoor or outdoor	Transformers almost invariably cast resin type for indoor substations