Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805
The methods of calculating the basic iron loss asynchronous motors, in which the separation unit losses into two components (the hysteresis and eddy) is introduced coefficient reflecting the expansion of the hysteresis loop. The level of basic iron loss depends primarily on the grade and thickness electrical steel is used and the magnitude of induction. Each value corresponds to the induction of a specific value of specific losses in the steel. By separating the specific losses into two components determined iron loss at frequencies other than the base, and at nonsinusoidal voltage. Induction in the yoke and the induction in the tines depend on the magnitude of the magnetic flux, the electromotive force which is proportional to the mutual inductance and inversely proportional to frequency. Hence the value of major losses in the steel depends on two variables: the mutual electromotive force and frequency of magnetic reversal. The proposed coefficient reflecting the expansion of the hysteresis loop varies with the frequency of alternating current. Determination of the factor based on experimental data processing. Thus it formed the approach and analytical expressions for calculation of the basic loss of steel, which allows to specify the values ​​in induction motors, including those in regulated
DOI 10.15276/eltecs.24.100.2017.05
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