BS 4999-33:1977
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
General requirements for rotating electrical machines Methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
Hardcopy
23-07-2013
English
31-03-1977
Specifies losses to be included when calculating efficiency for different types of machine. Details calibrated machine test, zero power factor test, retardation method, electrical back-to-back test and calorimetric test.
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