BEHAVIOR OF CAPACITOR-RUN SINGLE - PUASE INDUCTION MOTORS DRIVEN FROM A VARIABLE FREQUENCY SUPPLY | ||
| ERJ. Engineering Research Journal | ||
| Article 13, Volume 23, Issue 3, July 2000, Pages 205-215 PDF (219.35 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erjm.2000.71319 | ||
| Author | ||
| A. H. Morsi | ||
| Department of electrical engineering, Faculty of Engineering, El-Monoufya university, Shebin El-Kom egypt | ||
| Abstract | ||
| The capacitor - run single-phase induction motor is preferred than the other types of single-phase induction motors, due to lower current , higher eficiency and power factor. Speed control of these motors can be achieved through a wide range by the variable frequency controller Frequency variation needs a voltage variation by the same ratio (V/F = constant) during the constant torque region. If the capacitor is kept constant, the maximun torque will be decreased by the frequency decreasing. The main object of this work is to keep the maximun torque and thus full load torque, at higher values through the decreasing. The capacitance value should be increased, by frequency decreasing, to a value which keeps the winding Cuirunt at its rated value and the motor performance analysis is also achieved The computed and the measured performance characteristics are compared and found to be in a good agreement | ||
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