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SN EN 50464-1 : 2007 AMD 1 2012

Current

Current

The latest, up-to-date edition.

THREE-PHASE OIL-IMMERSED DISTRIBUTION TRANSFORMERS 50 HZ, FROM 50 KVA TO 2500 KVA WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 1: GENERAL REQUIREMENTS

Published date

12-01-2013

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1 Scope
2 Normative references
3 Electrical characteristics
  3.1 Rated power
  3.2 Highest voltages for equipment for windings
  3.3 Rated voltages of windings
  3.4 Tapping
  3.5 Connections
  3.6 Dimensioning of neutral connection of the low-voltage winding
  3.7 Short-circuit impedance
  3.8 Losses and sound power level
  3.9 Tolerances and penalties
  3.10 Tests
  3.11 Insulation levels and dielectric tests
4 Design requirements
  4.1 Type of oil preservation system and degree of sealing
  4.2 Terminal markings
  4.3 Terminations
  4.4 Distance between bushings
  4.5 Rollers
5 Accessories
6 Efficiency and voltage drop (at reference temperature)
  6.1 Efficiency
  6.2 Voltage drop (u%)
Annex A (informative) Capitalisation evaluation
Bibliography

Describes requirements related to electrical characteristics and design of three phases distribution transformers immersed in mineral oil.

DevelopmentNote
Supersedes SN HD 428.1. (07/2007)
DocumentType
Standard
PublisherName
Swiss Standards
Status
Current
Supersedes

Standards Relationship
BS EN 50464-1 : 2007 Identical
EN 50464-1 : 2007 AMD 1 2012 Identical
DIN EN 50464-1 : 2012 Identical
I.S. EN 50464-1:2007 Identical

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