NEN HD 428-3 : 1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
THREE-PHASE OIL-IMMERSED DISTRIBUTION TRANSFORMERS 50 HZ, FROM 50 TO 2500 KVA WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 3: SUPPLEMENTARY REQUIREMENTS FOR TRANSFORMERS WITH HIGHEST VOLTAGE FOR EQUIPMENT EQUAL TO 36 KV
15-05-2007
12-01-2013
Covers transformers from 50 to 2500 kVA intended for operation in three-phase distribution networks, indoor or outdoor continuous service, 50 Hz, immersed in mineral-oil, natural cooling, with two windings: a primary (high-voltage) winding with a highest voltage for equipment equal to 36 kV; a secondary (low-voltage) winding with a highest voltage for equipment not exceeding 1,1 kV.
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