NEN EN 50207 : 2001

1 Scope
2 Normative references
3 Definitions
   3.1 Definitions related to equipment
   3.2 Definitions related to electrical parameters
4 Common clauses
   4.1 General
   4.2 Service conditions
   4.3 Characteristics
   4.4 Technical requirements
   4.5 Tests
5 Direct traction converters
   5.1 Line commutated converters for d.c. motors
   5.2 Tests
   5.3 Multiphase converters for a.c. motors (inverters)
6 Indirect traction converters
   6.1 Line converter
   6.2 Motor converter (inverter)
7 Auxiliary converters
   7.1 Characteristics
   7.2 Short-circuit protection
   7.3 Choice of rated insulation voltage in presence of
       isolating transformers
   7.4 Tests
8 Semiconductors drive units (SDU)
Annex A (informative) Schemes of elementary converters
   A.1 Types of converters
   A.2 Rectifier
   A.3 Chopper
   A.4 Invertor
   A.5 Block diagrams for line converters for different types
       of the intermediate link
   A.6 Arrangement of basic circuit diagrams
Annex B (informative) Recapitulation list of agreements between
        the manufacturer and the user

Describes power electronic converters mounted on-board railway rolling-stock and intended for supplying: - traction circuits; - auxiliary circuits of power vehicles, coaches and trailers.