Registration number (WIID)Project No.TitleStatus
55700LVS HD 399 S2:1991Determination of transformer and reactor sound levelsAtcelts
55639EN 60076-1:1997/prAXPower transformers - Part 1: GeneralIzstrādē
55402prEN 50XXXEnvironmental aspect in normal and abnormal operationIzstrādē
55315prEN 50216-8-2Power transformer and reactor fittings - Part 8: Oil drain devices - Section 2: Filling openings for oil immersed distribution transformers without conservatorIzstrādē
55123HD 367 S1:1977On-load tap changersAtcelts
55123LVS HD 367 S1:1977On-load tap changersAtcelts
55101HD 367 S2:1992/AAOn-load tap-changersAtcelts
55101LVS HD 367 S2:1992/AAOn-load tap-changersAtcelts
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
54964LVS HD 538.2 S1:2002Three-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
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