NEMA EI 21.1-1993 (R2002) covers general requirements, ratings, accuracy classifications, burdens and pertinent dimensions applicable to instrument current and voltage transformers for revenue metering rated 110 kV BIL and less.
NEMA EI 21.1-1993 (R2002)
$55.00
Instrument Transformers for Revenue Metering (110 kV BIL and Less)
Category: NEMA
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