Problem 11.6: Determine the capacitor rating in KVAR and also in farad to improve the load pf from 0.75 lagging to 0.95 lagging at a 3-phase, 60 Hz, 480 V distribution point delivering 2400 kW real power. Also determine the simple payback period for the capacitor cost. Assume that the motor runs for 400 hours per month, the utility demand charge is $15 per kVA, energy charge is $0.15 per kWh, capacitor cost is $70 per KVAR installed, and cable power loss is 1% per phase.

Problem 11.6: Determine the capacitor rating in KVAR and also in farad to improve the load pf from 0.75 lagging to 0.95 lagging at a 3-phase, 60 Hz, 480 V distribution point delivering 2400 kW real power. Also determine the simple payback period for the capacitor cost. Assume that the motor runs for 400 hours per month, the utility demand charge is $15 per kVA, energy charge is $0.15 per kWh, capacitor cost is $70 per KVAR installed, and cable power loss is 1% per phase.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.12P: The voltage v(t)=359.3cos(t)volts is applied to a load consisting of a 10 resistor in parallel with...

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