UNE 21428-1:2017
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Three-phase oil-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. National complementary annex.
Hardcopy , PDF
Spanish, Castilian
01-02-2017
01-12-2021
This complementary annex intends to state the electrical and design characteristics for the Spanish electrical distribution network, which are not included in UNE-EN 50888-1 or where there are some options to choose. When there is nothing stated for any characteristics, UNE-EN 50588-1 requirements shall be applied.This document applies to three-phase oil-immersed distribution transformers 50 Hz, from 25 kVA to 3 150 kVA, for outdoor or indoor, immersed in a dielectric fluid, natural cooling, with two windings:- A primary winding (high voltage) with highest voltage for equipment from 3,6 kV to 36 kV - A secondary winding (low voltage) with highest voltage for equipment not exceeding 1,1 kVUNE 21428 series consists of the following parts:- Part 1: establishes general requirements- Part 1-1: establishes requirements for multi-voltage transformers in high-voltage- Part 1-2: establishes requirements for dual-voltage transformers in low-voltage
| Committee |
CTN 207/SC 14
|
| DevelopmentNote |
Supersedes UNE 20138. (06/2003)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Superseded
|
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