A resistor R and an impedance coil Z are connected in series. The combination is supplied by a 120-volt, 60 Hz AC source. The voltage across R and Z are 70 volts and 80 volts, respectively. The entire circuit consumes 1,153.12 inductive vars. Determine the following: e. Inductance of the impedance coil f. Value of resistance R g. Total real power drawn from the source h. Apparent power of the entire circuit i. Overall power factor

A resistor R and an impedance coil Z are connected in series. The combination is supplied by a 120-volt, 60 Hz AC source. The voltage across R and Z are 70 volts and 80 volts, respectively. The entire circuit consumes 1,153.12 inductive vars. Determine the following: e. Inductance of the impedance coil f. Value of resistance R g. Total real power drawn from the source h. Apparent power of the entire circuit i. Overall 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 2.22P: The real power delivered by a source to two impedances, Z1=4+j5 and Z2=10 connected in parallel, is...

See similar textbooks

Similar questions

1- When connected in series with a pure resistor R with resistance r and inductance L, three pairs of currents are 5A with a sinusoidal voltage application with an effective value of 100V. The voltage across the coil and resistor element is 80V and 30V. a-Find the power and power consumed by the coil alone? b- Find the power consumed by the system and the power factor? c- Draw the voltage triangle, impedance triangle and power triangle?
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?
When it is connected in series with a pure resistor R with resistance r and inductance L, the current it draws with a sinusoidal voltage application with an effective value of 100V is 5A. The voltage across the coil and resistor element is 80V and 30V. a-Find the power and power factor consumed by the coil alone? b- Find the power consumed by the system and the power factor? c- Draw the voltage triangle, impedance triangle and power triangle?
If it is connected in series with a pure resistance R with resistance R, inductance L, the current it draws with sinusoidal voltage application with an effective value of 100V is 5A. The voltage at the ends of the coil and resistance element is 80V and 30V.a-find only the power and power factor spent by the coil?b-find the power and power factor that the system consumes?c-draw the voltage triangle, impedance triangle and power triangle? Can you solve the all a, b and c options? Please
A resistor R and an impedance coil Z are connected in series. The combination is supplied bya 120-volt, 60 Hz AC source. The voltage across R and Z are 70 volts and 80 volts,respectively. The entire circuit consumes 1,153.12 inductive vars. Determine the following: a. Power factor of the impedance coilb. Total currentc. Impedance of the coild. Resistance of the impedance coil
q1: Discussion of power quality aspects that need to be considered before installing the power factor correction unit
In the circuit in the figure, there is a load consisting of the series connection of the resistor R0 and the inductance L0 between the terminals a and b. The amplitude of the VS (t) voltage is √2 150 volts, phase angle = 0 degrees, period T = 200π microseconds.Since R = 300 ohms and C = 1 microfarad a)Find the values of R0 and L0 that enable the load to draw maximum average power from the circuit when the load phase angle is constant at 45 degrees? b)Calculate the average power on the load?
a) Write down the expression of instantaneous voltage for an AC voltage having a Peak value of 220 Volts and a frequency of 50 Hz provided at time t=0, the instantaneous voltage is 220 Volts. What is the instantaneous voltage of the source at time “t = 5 seconds” What is its RMS voltage? b) Two 200Ω resistances are connected in series with one 0.5 H Inductance and two 100μF Capacitance with the power supply of part (a). (i)Draw the circuit diagram of the above network (ii)What is the total impedance of the circuit (iii)What is the max current that flows through the Inductance? (iv)What is the max current that flows through each of the Capacitance? (v)What is the power dissipated in the circuit (vi)What is the power factor of the circuit (vii)What is the resonance frequency of the circuit? (viii) What is the maximum power dissipated by the circuit when it is in resonance
A 15kVA, 440V, single-phase alternator draws a field current of 5A at rated load. With the same field current, the open circuit emf and short-circuit current are 100V and 80A respectively. The ohmic resistance of the armature between terminals is 0.12 ohm. The ratio of effective to ohmic resistance maybe taken as 1.1. Determine the voltage regulation (in %) when the load is purely resistive.
Q4. The source current in the circuit shown is in Figure 3a) What impedance should be connected across terminals a,b for maximum average powertransfer?b) What is the average power transferred to the impedance in (a)?c) Assume that the load is restricted to pure resistance. What size resistor connected across a,bwill result in the maximum average power transferred?d) What is the average power transferred to the resistor in (c)?v
When an impedance coil is connected to a 114 volt 60 cps source, the current is 3 A. If the current rises to 4 A when a 116 volt 25 cps is is impressed across the coil, determine the values of the resistance and inductance of the coil.
There is a load formed by the series connection of the resistor R0 and the inductance L0 between the terminals a and b in the figure. The amplitude of the voltage Vs (t) is √2 150 volts, phase angle θs = 0 ° degrees, period T = 200π microseconds Since R = 300 Ω and C = 1µFa) If the load phase angle is constant θL = 60 °, find the values of R0 and L0 that enable the load to draw the maximum average power from the circuit.b) Calculate the average power on the load.