3. An industrial load consists of the following: A 200 hp motor loaded to 100-hp: efficiency 0.82, pf 0.6 lagging A 350 hp motor drawing 80 kW: pf 0.8 lagging = A 500 hp motor drawing 47 kW: pf 0.7 leading A 70 kW lighting load Determine for the overall load: a. Real Power (kW) b. Reactive Power (kvar) c. Apparent Power (kVA) d. Power Factor

3. An industrial load consists of the following: A 200 hp motor loaded to 100-hp: efficiency 0.82, pf 0.6 lagging A 350 hp motor drawing 80 kW: pf 0.8 lagging = A 500 hp motor drawing 47 kW: pf 0.7 leading A 70 kW lighting load Determine for the overall load: a. Real Power (kW) b. Reactive Power (kvar) c. Apparent Power (kVA) d. Power Factor

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 2.30MCQ: Under balanced operating conditions, consider the three-phase complex power delivered by the...

See similar textbooks

Similar questions

An industrial load connected to a 440 V, 60 Hz line takes 50 A. The current lags the voltage by 30 electrical degrees. What is the power factor of this circuit? Determine the apparent power, in volt-amperes and the true power, in watts
A motor draws 680 W at 156 Vrms 60Hz. The motor is operating at a lagging power factor, with a power factor angle of 45 deg.. Determine the capacitance (in microFarad) required to correct the power factor so that the power factor angle becomes 15 deg, lagging. (Give answer in 2 decimal places. Unit is not required)
A load absorbs 72044 W at a lagging power factor of pf = 0.67. If the current flowing through the load is Ix = 0.100 A−rms, determine the impedance of the load.
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?
An industrial load uses 310-kVA at 0.6 pf lagging. A synchronous motor is added to the system to improve the power factor. The power required by the synchronous motor is 31-kW. (i)What is the complex power required by the load (P + jQ)[kVA] If the motor is added to the load to bring the power factor up to 0.9 pf lagging, then: (ii)What is the complex power now required by the load (at the new pf) (P+ jQ)[kVA] (iii)This means that the motor has a reactive power of (-Qm)[kVAR] and is operating at: (iv) a power factor of:
ELECTRONICS ASAP PLS ANSWER IN POLAR FORM AND 2 DECIMAL An electrical load operates at 290 Vrms. The load absorbs an average power of 8 kW at a lagging power factor of 0.9. a. Calculate the complex power of the load. b. Calculate the impedance of the load.
An example power system has two distinct manufacturing areas, one with harmonic loads, and another with only linear loads. The portion of the system with the harmonic loads draws 75 A rms at 60 Hz, 10 A rms at 300 Hz, and 5 A rms at 420 Hz. The part of the system with only linear loads draws 75 A rms at 60 Hz. (i) What is the total load current (at 60 Hz) if both manufacturing plants are running? Calculate the THD. (ii) What is the total load current (at 60 Hz) if only the manufacturing plant with harmonic loads is running? Calculate the THD.
A current of 2.5 A through a neon light advertisement is supplied by a 115 V RMS voltage source. The current lags the voltage by 30 degrees. Find the impedance of the light, the real power dissipated by it, and its power factor.
In the given circuit, the amplitude of the input voltage is 180 Volts RMS and its phase is 45 degrees.The power values that the loads receive/give are given below.What is the phase of the current phasor I0?Load 1 = 1.8 kW and capacitive 1.2 kVAR8 kW with load 2 = 0.5 back power factorLoad 3 = 3 kVA with 0.9 forward power factor
Derive the formula for Average Power, Pavg = VI cosθ watts, where V is the root-mean-square (rms) voltage in volts, I is the root-mean-square (rms) current in ampere, and cosθ is the power factor. For the derivation, use the sinusoidal voltage and current equations. The angle between the voltge and current is angle θ
A motor is supplied from an AC source with a voltage of 240 V-RMS. The motor is consuming an average input power of 1.2 kW and the current supplied by the source is 6 A-RMS. You can assume the motor has a lagging power factor. Determine: i. The apparent power. ii. The reactive power. iii. The power factor of the load and explain why the reactive power draw of this load may be undesirable.
Compute the average power dissipated by the load seen by the voltage source in the given figure. Let ω = 377 rad/s, Vs = 50 ∠0° V, R = 19.5 ohm, L = 0.08 H, and C = 200 μF.