BS EN 50152-3-3:2016
$102.76
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
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 16 |
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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 5 | European foreword |
| 7 | 1 Scope 2 Normative references 3 Terms, definitions and abbreviations 3.1 Terms and definitions |
| 8 | 3.2 Abbreviations |
| 9 | 4 Service conditions 5 Rating 5.1 General 5.2 Nominal voltage (Un) 5.3 Rated voltage (UNe) 5.4 Insulation coordination 5.4.1 General 5.4.2 Rated insulation level |
| 10 | Table 1 — Nominal voltages (Un), rated voltages (UNe), rated impulse voltages (UNi) and power-frequency withstand voltage (Ud) for circuits connected to the contact line 5.5 Rated frequency 5.6 Rated output 5.7 Rated accuracy class 5.8 Standard values of rated voltages 5.9 Standard values of rated voltage factor |
| 11 | 5.10 Ferroresonance 6 Design and construction 6.1 General 6.2 Transformer construction 6.3 Requirements for the external insulation 6.4 Nameplates 7 Tests 7.1 General |
| 12 | 7.2 Ferroresonance withstand test 7.3 Partial discharge test Table 2 — Partial discharge test voltages and permissible levels for voltage transformers with solid insulation 8 Rules for transport, storage, erection, operation and maintenance 9 Safety 10 Influence of the product on the environment |
| 13 | 11 Information to be given with enquiries, tenders and orders |
| 14 | Bibliography |
Related products
-
BS EN 50152-3-3:2016 – TC:2020 Edition
Tracked Changes. Railway applications. Fixed installations. Particular requirements for a.c. switchgear – Measurement, control and…
