Registration number (WIID)Project No.TitleStatus
57928HD 398.2 S1:1980Power transformers - Part 2: Temperature riseAtcelts
53420LVS EN 60551:1992/A1:1997Determination of transformer and reactor sound levelsAtcelts
46299LVS HD 367 S2:1992On-load tap-changersAtcelts
54336EN 50216-8:2005/A1:2006Power transformer and reactor fittings - Part 8: Butterfly valves for insulating liquid circuitsAtcelts
56764EN 50216-5:2002/A2:2005/corrigendum Oct. 2006Power transformer and reactor fittings - Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathersAtcelts
45244EN 50541-1:2011Three phase dry-type distribution transformers 50 Hz, from 100 kVA to 3 150 kVA, with highest voltage for equipment not exceeding 36 kV - Part 1: General requirementsAtcelts
47247LVS HD 464 S1:1988/A2:1991Dry-type power transformersAtcelts
54964HD 538.2 S1:1995Three-phase dry-type distribution transformers 50 Hz, from 100 to 2500 kVA, with highest voltage for equipment not exceeding 36 kV - Part 2: Supplementary requirements for transformers with highest voltage for equipment equal to 36 kVAtcelts
42060HD 398.3 S1:1986/A1:1995Power transformers - Part 3: Insulation levels and dielectric testsAtcelts
42834HD 538.1 S1:1992Three-phase dry-type distribution transformers 50 Hz, from 100 to 2500 kVA, with highest voltage for equipment not exceeding 36 kV - Part 1: General requirements and requirements for transformers with highest voltage for equipment not exceeding 24 kVAtcelts
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