Three-phase liquid-immersed distribution transformers 50 Hz, from 25 kVA to 3 150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. Section 1: Requirement for dual voltage transformers in high-voltage.
STANDARD published on 1.12.2021
Designation standards: UNE 21428-1-1:2021
Publication date standards: 1.12.2021
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: Spanish technical standard
Category: Technical standards UNE