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BS 7844-3:1998

Заменен
Three-phase dry-type distribution transformers 50 Hz, from 100 to 2500 kVA with highest voltage for equipment not exceeding 36 kV, Determination of the power rating of a transformer loaded with non-sinusoidal current — 10 стр.
BS 7844-3:1998
Заменен
BS EN 50541-2:2013
Действует