IEC / IEEE Testing
IEC / IEEE Testing
(OP)
Is thier an equilvant IEEE test, for testing a Vertical IEC machine by the two frequency method.and ifso, is it still possible measure the stray load losses, as opposed to IEC assumption of 0.5 %. Thanks





RE: IEC / IEEE Testing
The calculated value of full load slip and either the calculated value or assumed value of stray load loss or, alternatively, the values of stray loss prescribed in ANSI C50.41, Section 16 are used.
The dual frequency test determines the temperature rise. Reference: "Primary-Superimposed Equivalent Load Method (Dual-Frequency)," Section 5.2.3. of IEEE 112- Motor is run at no load with 60 Hertz primary power applied.
RE: IEC / IEEE Testing
RE: IEC / IEEE Testing
The relevant section appears to be 8.2.3.b
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