Three identical loads are connected in star across a 3 phase AC supply. Each load took a current of 10A from 415V, 50Hz supply at a power factor of 0.6 calculate the resistance and inductance of each load

Three identical loads are connected in star across a 3 phase AC supply. Each load took a current of 10A from 415V, 50Hz supply at a power factor of 0.6 calculate the resistance and inductance of each load

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter23: Resistive-inductive-capacitive Series Circuits

Section: Chapter Questions

Problem 9RQ: What is the power factor of the circuit in Question 6?

See similar textbooks

Similar questions

1.Do the polarities of the sources matter as to the resulting voltages? Will the magnitudes of the voltages be the same if one or both sources have an inverted polarity?
A moving coil ammeter and a moving iron ammeter are connected in series with arectifier across 110V (r.m.s.) AC supply. The total resistance of the circuit in theconducting direction is 60 ohm and that in the reverse direction may be taken asinfinity. Assuming the waveform of the supply voltage to be sinusoidal, calculate thereadings in each ammeter
For resistance and inductance circuit connected in series, has the following values: Vsupply = 120 Vac, f= 60 Hz, R=8022, and L = 159.2 milli-Henry. • What will be the total impedance? 140Ω 60Ω 8002 100Ω Vac R₁ L1
If the applied voltage across a series RL circuit is 120V and the voltage across the resistor is measured to be 90V, the power factor for the circuit is ... a) 0.65 b) 0.90 Oc) 0.75 d) 1.00
4. A resistor and inductor are connected in parallel to a 277 volt, 60 Hz line. The resis- 12. tor has a current of 12 amperes flowing through it, and the inductor has a current flow of 8 amperes flowing through it. What is the total current flow in the circuit? m bas vlaqua
An R-L parallel circuit is connected to 240 volts at 60 Hz. The resistor has a resistance of 68 2, and the inductor has an inductive reactance of 48 2. What is the reactance of the inductor?
Incandescent lighting of 500 W is connected in parallel with an inductive load. A clamp-on ammeter reveals a total circuit current of 7 A. What is the inductance of the load connected in parallel with the incandescent lights? Assume a voltage of 120 V and a frequency of 60 Hz.
You are an electrician working in an industrial plant. A 30-hp three-phase induction motor has a current draw of 36 amperes at full load. The motor is connected to a 480-volt line. A three-phase wattmeter indicates a true power of 22 kW. Determine the power factor of the motor and the amount of capacitance needed to correct the power factor to 95. Also determine the minimum voltage rating of the capacitors. The capacitors are to be connected in wye.
2. A resistor in series with a capacitor absorbs 10 W when the combination is connected to a 120 – V, 400 – Hz source. If the power factor is 0.6 leading, what are the resistance and capacitance?
In general, the greater the absolute value of the impedance in a circuit:A. The greater the flow of alternating current.B. The less the flow of alternating current.C. The larger the reactance.D. The larger the resistance.
Two relays each with 20 ohms resistance and 0.16 Henry inductance are connected in series. What is the equivalent impedance?
120VAC/20VCT, 1A C 7805 (b) 2600 (d) 10000 100 ( R je se spe se se x 3 x 30 LOAD The questions below pertain to the circuit above. The load requires 18V at 0.6A, and US standard 60 Hz power will be used. (27) A good voltage rating for the capacitor would be (a) 5V (c) 20V (b) 12V (d) 50V (28) The voltage at the input to the regulator needs to be kept above (a) 2V (c) 20V (b) 7V (d) 30V (29) A good value for the resistor R would be (a) 38Ω (c) 32002