BS 4571:1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
On-load tap-changers
Hardcopy , PDF
English
15-03-1994
15-03-1998
Section one. General
1. Scope
2. Service conditions
3. Information required with enquiries and orders
Section two. Definitions
4. Definitions relating to on-load tap-changers
(excluding motor-drive mechanisms)
5. Definitions relating to motor-drive mechanisms
Section three. Requirements for on-load tap-changers
6. Rating
7. Design and construction
8. Type tests
9. Routine tests
10. Nameplate
Section four. Requirements for motor-drive mechanisms
for on-load tap-changers
11. Design and construction
12. Type tests
13. Routine tsts
13. Routine tests
14. Nameplate
Appendix A - Supplementary information on switching
duty relating to tap-changers with
resistor transition only
Appendix B - Method of determining the equivalent
temperature of the transition resistor
using power pulse currents
Appendix C - Simulated circuits for service duty and
breaking capacity tests
Applies to oil and gas filled tap changers except for tap changers used for railway rolling stock applications.
| Committee |
PEL/14
|
| DevelopmentNote |
Supersedes BS 4571: 1978. IMPLEMENTATION OF CENELEC HD 367. DRAFT FOR COMMENT 91/24675 DC
|
| DocumentType |
Standard
|
| Pages |
48
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| IEC 60270:2000+AMD1:2015 CSV | High-voltage test techniques - Partial discharge measurements |
| IEC 60354:1991 | Loading guide for oil-immersed power transformers |
| IEC 60296:2012 RLV | Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear |
| IEC 60076-3:2013 | Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air |
| IEC 60137:2017 | Insulated bushings for alternating voltages above 1000 V |
| IEC 60076-1:2011 | Power transformers - Part 1: General |
| IEC 60144:1963 | Degrees of protection of enclosures for low-voltage switchgear and controlgear |
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