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 3: Requirements for dual-voltage transformers in high-voltage and for dual-voltage transformers in low-voltage
STANDARD published on 1.12.2021
Designation standards: UNE 21428-1-3:2021
Publication date standards: 1.12.2021
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: Spanish technical standard
Category: Technical standards UNE