BS EN 50327:2003

Introduction
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
  3.1 Basic connections of converter groups
  3.2 Symbols
  3.3 Definitions
4 Service conditions
5 General requirements for converter groups
  5.1 Voltage requirements
  5.2 Current demand
  5.3 Short circuit requirements
  5.4 Insulation levels
6 Relationships among parameters of the items of a
  converter group
  6.1 General
  6.2 Theoretical relationships
7 Tests suitable to verify the correct performance of
  the converter group
  7.1 General
  7.2 Performance of tests
  7.3 Test schedule
  7.4 Loss determination for the converter group
  7.5 Power factor measurement
  7.6 Measurement of the inherent voltage drop
  7.7 Short circuit test
Annex A (informative) Determination of the voltage drop and the
                      short-circuit currents of converter groups
Annex B (informative) Examples of power factors of converter
                      groups with d.c. output
Annex C (informative) Interbridge reactor
Bibliography

Covers requirements for some type tests which are significant only when made on the entire group. Gives a basic relationship between compatible ratings of traction transformer and converter(s), in order to provide minimum requirements for the choice of their ratings.

This European Standard provides requirements for some type tests which are significant only when made on the entire group. It provides also a basic relationship between compatible ratings of traction transformer and converter(s), in order to provide minimum requirements for the choice of their ratings. Moreover it gives the minimum values to be considered in order to choose switching devices with characteristics suitable for the converter group(s) involved. Annexes provide useful information as a guide for the group designer. Table 1 indicates the components of a converter group and the relevant applicable standards. Table 1 - Components of a converter group Component Standard Converter EN 50328 Traction transformer EN 50329 Interbridge reactor EN 60289 and informative annex D Reactors EN 60289 Transducers EN 50123-7-1 EN 50123-7-2 Instrument transformers (as applicable) EN 50152-3-2/EN 50152-3-3 EN 60044 series Control devices as applicable Busbars and connections as applicable