Institute of Electrical and Electronics Engineers (IEEE)
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ANSI/IEEE Std 251-1984
Scope
This test procedure covers instructions for conducting and reporting the more generally applicable and acceptable tests to determine the performance characteristics of direct-current tachometer generators. Direct-current tachometer generators are used for a variety of indicating and control purposes and a characteristic of primary importance in one application may be of little or no importance in ...
ANSI/IEEE Std 251-1984 history
1984ANSI/IEEE Std 251-1984 IEEE Guide: Test Procedures for Direct-Current Tachometer Generators