An industrial load consumes 10 kW at a power factor of 0.80 lagging from a 240-V, 60- Hz, single phase source. A bank of capacitors is connected in parallel to the load to raise the power factor to 0.95 lagging. . • Find the required reactive power in KVAR. Find the required capacitance of the capacitor bank in µF.

An industrial load consumes 10 kW at a power factor of 0.80 lagging from a 240-V, 60- Hz, single phase source. A bank of capacitors is connected in parallel to the load to raise the power factor to 0.95 lagging. . • Find the required reactive power in KVAR. Find the required capacitance of the capacitor bank in µF.

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...

See similar textbooks

Similar questions

An industrial installation has a power factor of 0.85 in backward. The demand is 150 KVA, and the operating voltage is 4800 V at 60 Hz. What should be done to bring the power factor to 0.95 in lagging? Indicate what you would connect and with what three-phase power. If the connection of the element to be added is in delta, indicate its reactance and the value of its capacitance or inductance. capacitance or inductance.
A transmission line with impedance of 0.085 + j 0.32 Ω is used to deliver power to a load. The load is inductive and the load voltage is 200∠0° Vrms at 60Hz. If the load operates at 20 kVA with a power factor of 0.75 determine the real and quadrature power losses in both the load and the line and the source voltage phasor.
A 480V rms source supplies load that absorbs 100 kW at 0.7 lagging power factor. A capacitor is then connected in parallel to this load to correct the overall power factor to 0.9 lagging. What reactive power must this capacitor produce to correct the power factors? What will be the resulting rms source current after connecting this capacitor?
An industrial process requires a power of 10 kW with a lagging power factor of 0.6 in a single-phase system. It is desired to add a parallel capacitance to raise the power factor to unity. For a line voltage of 240 V rms, determine the value of capacitance required.
1. A motor load consists of a resistance of 6 Ohms in series with an inductance of 12 mH. Assume 120Vac, 60 Hz supply. a. What is the complex impedance of the load? b. What is the ac current through this load? c. What is theta, the angle between voltage and current through this load? d. What is the power factor? e. What capacitance should be added in parallel with this load to correct the power factor to 1? f. What is the current from the supply when the power factor is corrected?
A load operates at a voltage of Vx = 475 V−rms and absorbs P = 56 and Q = 23 VAR of power. Use this information to calculate the apparent power (S) and the power factor (pf) for the load. THank you for the help
The line voltage on a 146 kW 0.7 PF lagging load is 480 Vrms. Find the value of the capacitance that when placed in parallel with the load will raise the power factor to 0.9 lagging for a frequency of 50 Hz
A 1000-W electric motor is connected to a 120 V rms, 60-Hz source. The power factor seen by the source is 0.8, lagging. To correct the pf to 0.95 lagging, a capacitor is placed in parallel with the motor. Calculate the current drawn from the source with and without the capacitor connected. Determine the value of the capacitor required to make the correction.
A load with a voltage amplitude of 50 Hz 300 V rms at its terminals consumes 28.98 kW at a back power factor of 0.69. If a 225.87 microfarad capacitor is connected parallel to the terminals of this load, how much will the amplitude of the current drawn from the line decrease?
If a current 5.0 A lags the applied voltage 230 V by an angle ϕ, it can be resolved into two components, OA in phase with the voltage and OB lagging by 90°. If the phasor diagram in to a circuit possessing resistance and inductance in series, OA and OB must not be labelled and respectively. It has become the practice to say that the power factor is laggingwhen the current lags the supply voltage, and leading when the current leads the supply voltage. This means that the supply voltage is regarded as the reference quantity. (a) A 30 μ F capacitor is connected across the applied voltage, 50 Hz supply. Calculate the reactance of 30 μ F capacitor connected across applied voltage (b) the reactance of the capacitor; (c) the current.
A motor connected to a 220-V supply line from the power company has a current of 7.6 A. Both the current and the voltage are rms values. The average power delivered to the motor is 1317 W. (a) Find the apparent power, the reactive power, and the power factor when ω=377 rad/s. (b) Find the capacitance of a parallel capacitor that will result in a unity power factor of the combination. (c) Find the current in the utility lines after the capacitor is installed.
A circuit consists of a series connected 84 Ω resistor and a 163 mH inductor. The circuit supply is a 121 V rms source with a frequency of 42 Hz. Ultimately, you need to calculate the average power dissipated in the circuit. You should have found the polar form of the complex current. The average power dissipated in the resistive and reactive circuit is: ?=??cosφ where φ is the phase of the current, and V and I are the rms values. Finally, calculate the circuit Power Factor (cos?) where φ is the phase of the current. Finally, will the circuit Power Factor cos? be lagging or leading?