Historical
NEMA EI 21.1:1993 (R2002)
Instrument Transformers For Revenue Metering 110
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.
- ADD TO ALERT |
- PDF |
- DRM |
NEMA: National Electrical Manufacturers Association [nema]