NEMA EI 21.1:1993 (R2002)
$30.55
Instrument Transformers for Revenue Metering (110 kV BIL and Less)
Published By | Publication Date | Number of Pages |
NEMA | 1993-01-01 | 33 |
NEMA EI 21.1-1993 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.