BS 171-3:1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Power transformers Specification for insulation levels and dielectric tests
Hardcopy , PDF
15-07-2001
English
30-01-1987
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Foreword
Committees responsible
Clause
1 Definitions
2 General
3 Highest voltage for equipment and insulation level
4 Rules for some special classes of transformers
5 Insulation requirements and dielectric tests - Basic
rules
6 Tests on a transformer having a tapped winding
7 Insulation requirements and test conditions for
dry-type transformers
8 Repeated dielectric tests
9 Insulation of auxiliary wiring
10 Separate-source voltage withstand test
11 Induced overvoltage withstand test
12 Lightning impulse test
13 Test with lightning impulse chopped on the tail
14 Switching impulse test
Appendix A Application guide for partial discharge
measurements during induced overvoltage
withstand test on transformers according
to Sub-clause 11.4
Appendix B Overvoltage transferred from the high-
voltage winding to a low-voltage winding
Appendix C Information on transformer insulation and
dielectric tests to be supplied with an
enquiry and with an order
Applicable to power transformers (including auto-transformers) with the exception of small and special transformers listed in the scope of BS 171:Part 1.
| Committee |
PEL/14
|
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| EN 60289:1994/A11:2002 | REACTORS |
| BS 7821-3:1995 | Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV Supplementary requirements for transformers with highest voltage for equipment equal to 36 kV |
| BS 7821-2.1:1995 | Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV. Distribution transformers with cable boxes on the high voltage and/or low voltage side General requirements |
| BS EN 60289:1995 | Reactors |
| BS 7565:1992 | Specification for traction transformers and inductors |
| BS 7821-1:1995 | Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV General requirements and requirements for transformers with highest voltage for equipment not exceeding 24 kV |
| BS 7735:1994 | Guide to loading of oil-immersed power transformers |
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