1. The following circuit has three loads connected in parallel to a 1.0 kV RMS voltage source at a frequency of 60-Hz (single-phase). The data of the three loads are as follows: Load 1: Inductive, 125 kVA, 0.28 power factor (lagging) ● Load 2: Capacitive, 10 kW, 40 KVAR • Load 3: Resistive, 15 kW a. Determine the total active, reactive, and complex power of the total load. Show all calculations. b. Determine the power factor (PF) of the total load. Show all calculations. c. To improve the power factor, it is desired to connect a capacitive load (capacitor) in parallel with the three loads. Determine the capacitor capacitance (in microFarads) needed to increase the power factor to 0.8 lagging. Show all calculations. 1000 V 4₁ Load 1 12 Load 2 13 Load 3

1. The following circuit has three loads connected in parallel to a 1.0 kV RMS voltage source at a frequency of 60-Hz (single-phase). The data of the three loads are as follows: Load 1: Inductive, 125 kVA, 0.28 power factor (lagging) ● Load 2: Capacitive, 10 kW, 40 KVAR • Load 3: Resistive, 15 kW a. Determine the total active, reactive, and complex power of the total load. Show all calculations. b. Determine the power factor (PF) of the total load. Show all calculations. c. To improve the power factor, it is desired to connect a capacitive load (capacitor) in parallel with the three loads. Determine the capacitor capacitance (in microFarads) needed to increase the power factor to 0.8 lagging. Show all calculations. 1000 V 4₁ Load 1 12 Load 2 13 Load 3

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

An AC supply voltage is represented by v = 325 Sin wt. Three loads are connected in parallel across the supply, and the currents through these loads respectively are: 1=8.48 Sin wt 12 = 4.24 Sin (wt - 15°) 3 = 6.36 Sin (wt + 90°) Which of the following is the supply current? O a. 13.49 75°A O b. 9.63222.65°A O c. 19.08275°4 O d. 7.49275 A
answer in 4 decimal places.
I need it in 5 minutes please
supply 3. Three circuits A, B and C are connected in series across 350 V supply. The voltage across circuit A is 80 V lagging the voltage by 330 and the voltage across circuit C is 140 V leading the supply voltage by 48°. Determine the voltage circuit B and its phase displacement from the supply voltage using wave and vector solution. across 4. Draw the phasor and wave diagram of the following sinusoidal current:
A 10 Ω resistor, a 0.06-henri inductance and a 300 µf capacitor are connected in parallel to an alternating current source with a frequency of 100 Volts 25 Hz. Calculate its impedance d-) Power.
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 Oc. 12000 + j16000 VA O d. None of these
Problem 1 • A sinusoidal source with frequency of 60 Hz and rms-voltage of 100 V is connected to an RL load of 10 ohms and 100 uH. Find Power Factor From Calculation Find Power Factor From Plot L=10mH find power factor from calculation only
Three identical Y-connected loads, each having a resistance of 20 22 in parallel with an inductor, are connected to a three phase supply of 400 V and 50 Hz frequency. The power absorb by the load is 8 kW and power factor at the load is 0.9919. (i) Determine the current that flows through the inductor. Please state the assumptions used to solve the question. Calculate load inductance in Henry (H).
find The average power delivered to * .the circuit الحل بطريقة الممانعات وشكرا
A battery is connected in series with a small generator to supply a purely resistive load of 5 ohms. The expression of the total voltage is e =24 + 60 sin 377t Volts. Determine the expression for the current and its RMS value. a. i = 5.8 + 12sin 377t, 9.75A b. i = 4.8sin 377t, 9.75A c. i = 12sin 377t, 9.75A d. i = 4.8 + 12sin 377t, 9.75A
FIND THE CURRENT, VOLTAGE AND POWER FOR R1,R2,R3,AND R4.
2. Three series loads are drawing 20A ms current through a 60HZ source. Load 1 is an 400W, 0.8 lagging induction motor. Load 2 is a 500VA, 0.6 lagging power factor and load 3 is a 2 ohm incandescent bulb. a) What is the total VA of the combined load? b) What is the overall PF of the combined load? c) What RMS voltage is the combined load operating? d) What capacitor VAR must be installed in parallel to the combine load to improve its overall PF to unity? e) What is its approximate capacitance in microfarad?