H. W.: A 35 kW induction motor has power factor 0.9 and efficiency 0.9 at full-load, power factor 0.6 and efficiency 0.7 at half full-load. At no load the current is 25% of full-load current and power factor is 0.1. Capacitors are supplied to make the line power factor 0.8 at half full- load. With these capacitors in circuit, find the line power factor at: (i) full load, and (ii) no load.

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Author:Robert L. Boylestad
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H. W.: A 35 kW induction motor has power factor 0.9 and effliciency 0.9
at full-load, power factor 0.6 and efficiency 0.7 at half full-load. At no
load the current is 25% of full-load current and power factor is 0.I.
Capacitors are supplied to make the line power factor 0.8 at half full-
load. With these capacitors in circuit, find the line power factor at: (i) full
load, and (ii) no load.
Transcribed Image Text:H. W.: A 35 kW induction motor has power factor 0.9 and effliciency 0.9 at full-load, power factor 0.6 and efficiency 0.7 at half full-load. At no load the current is 25% of full-load current and power factor is 0.I. Capacitors are supplied to make the line power factor 0.8 at half full- load. With these capacitors in circuit, find the line power factor at: (i) full load, and (ii) no load.
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