Problem 7.10 A 120-V rms 60-Hz source supplies two loads connected in parallel, as shown. (a) Find the power factor of the parallel combination. (b) Calculate the value of the capacitance connected in parallel that will raise the power factor to unity. Load 1 Load 2 24 kW 40 kW pf = 0.8 lagging pf = 0.95 lagging

Problem 7.10 A 120-V rms 60-Hz source supplies two loads connected in parallel, as shown. (a) Find the power factor of the parallel combination. (b) Calculate the value of the capacitance connected in parallel that will raise the power factor to unity. Load 1 Load 2 24 kW 40 kW pf = 0.8 lagging pf = 0.95 lagging

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.61P

See similar textbooks

Similar questions

Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor, and a 4 capacitor. (a) Draw the circuit diagram. (b) Compute the series impedance. (C) Determine the current I delivered by the source. Is the current lagging or leading the source voltage? What is the power factor of this circuit?
15 A of current is taken by a non-inductive load at 125 V. In order that the same current shall be generated from 240 V, 50 Hz mains. An inductor is now also then connected in series. Note: The resistance of the inductor should be ignored and also assume the waveform to be sinusoidal. Determine the phase difference between the current and the applied voltage, the impedance of the circuit and the inductance of the inductor.
Calculate the capacitance that when placed in parallel with the load, will raise the power factor to unity. Please answer in typing format please ASAP for the like Please
Lance Smile operated two loads in parallel. The loads draw a total of 3kW at a 90% power factor lagging operating at a 230 Vrms 60-hz voltage source. Load 1 is taking 1000 W at 80% power factor lagging. Determine the following: a. The power factor of the second load. b. If a capacitor is connected in parallel with the loads, what is the value of the capacitance needed to correct the power factor to 95% lagging for the combined load.
Calculate the value of capacitance in the following figure that must be connected in parallel with the load to correct the source power factor to 0.94 lagging. The frequency f = 60 Hz
7.14 An inductive load consists of 1 Q2 resistance and 1.0 mH inductance connected in series. The load is connected across 120 V, 60 Hz source. a. Compute the power factor of the load. b. A capacitor is connected in parallel with the entire load so that no reactive power is delivered by the source. Compute the value of the capacitance.
If, in one (3600), all of the instantaneous power falls under positive loops (no negative loops), the load must be:a. A resistorb. An inductor or capacitorExplain:
8. The total power supplied to a balance delta load is found in the same way as for a balance wye load. True False Either Neither 12. A load of 20 + j35 ohms is connected across a 220 V, 60 Hz supply. Find the reactive power of the load in var. 595 2420 1042 1382 13. A type of DC source where the characteristic output voltage has perfect unidirectional waveform and is based on electrochemical principle. Generator Inverter Converter Battery 14. Calculate the Rf of a circuit whose impedance is 20+j35 and current of 2A. 0.86 0.91 0.50 0.71 15. What capacitor shall be installed in parallel with a circuit to achieve a unity power factor if the reactive power of a circuit is 200VARS and the voltage is 100V. 80.45 microfarad 53.05 microfarad It's already in unity 62.45 microfarad
Two loads are connected in parallel to a 2000 V(rms) 50Hz source. one of the loads Each of them has 500KVAR reactive power and 0.6 reverse power factor. Other load 300KW since it has absorbing power and 100KVAR dissipating power a) Draw the equivalent circuit of the system b) Find the common power factor of the system c) In order for the power factor to be 0.98 back, the capacitor to be connected in parallel with the loads find its value d) The magnitude of the current drawn from the source is measured before and after the capacitor is connected Find and compare for the next cases. Not. Solve this question in detail step by step and explain your requests in detail
7.75 The circuit shown in Figure P7.75 is a Y-A-Y connected three-phase circuit. The primaries of the transformers are wye-connected, the secondaries are delta-connected, and the load is wye-connected. Find the currents Igp, IwWP, Igp, La, Ig, and Ic. IRP. 46020° Vo- 4:1 102 10 2 Iwp 460Z120° Vo 4:1 Igp 4602-120° Vo- 4: 10 2 Ideal transformer
d. 565.685 V If a Load absorbs 20 kVA at a leading power factor of 0.6. Then the complex power is: Select one: O a. 12000 - j16000 VA O b.-12000 + j16000 VA O c. 12000 + j16000 VA O d. None of these Given the circuit below and the associated set of voltages and currents, the reactive Power developed by im voltage source is FENG300 MINTERM
a- Find the RMS values of the load voltage and the load currentb- Calculate and draw the voltage across the load inductance