ENE 104 Electric Circuit Theory - staff.kmutt.ac.th - kmutt

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ENE 104 Example: AC Circuit Power Analysis Page 58 Week #11 An industrial consumer is operating a 50-kW induction motor at a lagging PF of 0.8. The source voltage is 230 Vrms. In order to obtain lower electrical rates, the customer wishes to raise the PF to 0.95 lagging. Specify a suitable solution.
ENE 104 Example: AC Circuit Power Analysis Page 59 Week #11 A purely reactive load must be added to the system, in parallel, since the supply voltage must not change. The complex power supplied to the motor must have a real part of 50-kW and an angle of cos -1 (0.8)=36.9 o 50 36.9 Hence, S 1 0.8 50 j37. 5 kVA
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Page 9 and 10: ENE 104 Practice: 11.1 AC Circuit P
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Page 29 and 30: ENE 104 Maximum Power Transfer: AC
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Page 49 and 50: Apparent power and Power factor: Pa
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Page 67 and 68: ENE 104 Practice: 11.10 AC Circuit
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ENE 104 Electric Circuit Theory - staff.kmutt.ac.th - kmutt

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