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Homepage>BS Standards>29 ELECTRICAL ENGINEERING>29.130 Switchgear and controlgear>29.130.20 Low voltage switchgear and controlgear>BS EN 50152-3-3:2016 Railway applications. Fixed installations. Particular requirements for a.c. switchgear Measurement, control and protection devices for specific use in a.c. traction systems. Voltage transformers
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BS EN 50152-3-3:2016 Railway applications. Fixed installations. Particular requirements for a.c. switchgear Measurement, control and protection devices for specific use in a.c. traction systems. Voltage transformers

BS EN 50152-3-3:2016

Railway applications. Fixed installations. Particular requirements for a.c. switchgear Measurement, control and protection devices for specific use in a.c. traction systems. Voltage transformers

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Standard number:BS EN 50152-3-3:2016
Pages:16
Released:2016-06-30
ISBN:978 0 580 88379 8
Status:Standard
DESCRIPTION

BS EN 50152-3-3:2016


This standard BS EN 50152-3-3:2016 Railway applications. Fixed installations. Particular requirements for a.c. switchgear is classified in these ICS categories:
  • 29.280 Electric traction equipment
  • 29.130.20 Low voltage switchgear and controlgear

This EN 50152-3-3 is applicable to new voltage transformers which are:

  • intended for use in indoor or outdoor fixed installations in tractions systems, and

  • operated with an a.c. line voltage and frequency as specified in EN 50163.

NOTE 1 EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz.

NOTE 2 As rails of a.c. traction systems are typically connected to earth and included in the return current path, all phase to earth voltages are subject to the limits as given in EN 50163. Nevertheless conductor to conductor voltages are some times higher e.g. in autotransformer systems.

Voltage transformers are mainly used with:

  • measuring instruments,

  • protective devices.

This EN 50152-3-3 also applies to voltage transformers other than inductive types as far as reasonably possible. Requirements of this EN 50152-3-3 have priority.

NOTE 3 Combined current and voltage transformers also capacitive voltage transformers are typically not used in fixed installations in traction systems.