BSI BS 4999-33:1977

Withdrawn Revision
General requirements for rotating electrical machines -- Methods for determining losses and efficiency from tests (excluding machines for traction vehicles)

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BSI BS 4999-33:1977

General requirements for rotating electrical machines -- Methods for determining losses and efficiency from tests (excluding machines for traction vehicles)

PUBLISH DATE 1977
BSI BS 4999-33:1977

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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