A circuit is operated at its resonant frequency, which is designed to be 240 Hz. The circuit contains a toroid that provides an inductance of 370 mH, and has a total resistive load of 1250 Ohms. Due to the passage of time, eventually the frequency decreases to 220 Hz. If when operating under design conditions it used an average power of 440 W, find: a) The capacitance of the circuit. b) The peak and rms current and voltage at which it operates under design conditions. c) The peak and rms current and voltage at which it operates under conditions after heavy use. d) The power factor in the condition after much use.

A circuit is operated at its resonant frequency, which is designed to be 240 Hz. The circuit contains a toroid that provides an inductance of 370 mH, and has a total resistive load of 1250 Ohms. Due to the passage of time, eventually the frequency decreases to 220 Hz. If when operating under design conditions it used an average power of 440 W, find: a) The capacitance of the circuit. b) The peak and rms current and voltage at which it operates under design conditions. c) The peak and rms current and voltage at which it operates under conditions after heavy use. d) The power factor in the condition after much use.

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 2.27P: An industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8...

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