Three phase dry-type distribution transformers 50 Hz, from 100 kVA to 3150 kVA, with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. National complementary annex.
STANDARD published on 25.4.2018
Designation standards: UNE 21538-1:2018
Note: WITHDRAWN
Publication date standards: 25.4.2018
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: Spanish technical standard
Category: Technical standards UNE