BS 171-1:1978
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Power transformers General
Hardcopy , PDF
15-09-1997
English
31-08-1978
Foreword
Cooperating organizations
Clause
1 Scope
2 Service conditions
3 Definitions
4 Rating
5 Rating plates
6 Miscellaneous requirements
7 Tolerances
8 Tests
8.1 General requirements for type, routine and special
tests
8.2 Measurement of winding resistance
8.3 Measurement of voltage ratio and check of voltage
vector relationship
8.4 Measurement of impedance voltage (principal
tapping), short-circuit impedance and load loss
8.5 Measurement of no-load loss and current
8.6 Measurement of the harmonics of the no-load
current
8.7 Measurement of zero-sequence impedance(s) on
three-phase transformers
8.8 Test on on-load tap-changers
Appendix A Information required with enquiry and order
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