For the system shown in Figure 2: a) Find
IS. b) Find the average power delivered to each element. c) Find
the reactive power for each element. d) Find the apparent power for
each element. e) Find PT, QT, ST. f) Sketch the power triangle.
Figure 2 g) Find the power factor seen by the source E.
Homework Answers
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For the system shown in Figure 2: a) Find
IS. b) Find the average power delivered...
For the circuits shown find the average power and reactive power delivered by the source. 3.2...
For the circuits shown find the average power and reactive power delivered by the source. 3.2 o.SH
Two loads, A and B, are connected in parallel across a 1-kV-rms 60-Hz line, as shown...
Two loads, A and B, are connected in parallel
across a 1-kV-rms 60-Hz line, as shown in (Figure 1). Load
Aconsumes 10 kW with a 60 percent lagging power factor.
Load B has an apparent power of 20 kVA with an 80 percent
lagging power factor.
a) Find the power delivered by the source.
b) Find the reactive power delivered by the source.
c) Find the apparent power delivered by the source.
d) What is the power factor seen by...
For the circuit in the given figure, find the average, reactive, and complex power delivered by...
For the circuit in the given figure, find the average, reactive, and complex power delivered by the dependent voltage source. Assume V = 58 2259 V. 40 -j1 2220 v 19 v 129 2V The average power is W. The reactive power is VA. The complex power is ( ) VA
.) An unbalanced Y-Y circuit is shown in Figure 2. Find the average power delivered to...
.) An unbalanced Y-Y circuit is shown in Figure 2. Find the average power delivered to the load. 21H 10 cos (4t - 90°) 20 2H 10 cos 4150°) 4Ω 2H 10 cos (4t + 30°) Source Line Load Figure 2
Given the single phase power system shown in Figure 2, determine the following (use 240 V_base...
Given the single phase power system shown in Figure 2, determine the following (use 240 V_base and 30 kVA S_ base for the system at Bus 1): a) Draw the per-unit circuit b) Determine the per-unit impedances and per-unit source voltage c) Calculate the load current in both per-unit and in amperes at Bus 3 d) Calculate the apparent power, real power, reactive power and power factor at Bus 1
(8 points) In the quitessential electric power system in the figure, a voltmeter reads the same...
(8 points) In the quitessential electric power system in the figure, a voltmeter reads the same at the source and at the load, 125 volts. At the source, an ammeter reads 40 amps. The source sees a inductive circuit. The cable (feeder) has a resistance of 0.0631302 ohms and a reactance of 1.2046 ohms. (a) What is the power factor angle, in degrees, at the source; (b) What is the active power delivered by the source; (C) What is the...
Problem 4: Find the complex power S delivered by the voltage source and the power factor...
Problem 4: Find the complex power S delivered by the voltage source and the power factor seen by the voltage source for the circuit of Figure 4 below. 01 12 4 10 cos 2t v (+ Figure 4
Need help solving the circuit with 120V 60Hz power network 21 Set up the circuit shown...
Need help solving the circuit with 120V 60Hz power network
21 Set up the circuit shown in Figure 3. + L1 11 + Ri E1 Xci R3. L2 X3 E2 Xc2 L3 12 XC1,XC2, XC3 R1,R2,R3 (O Local ac power network Frequency (Hz) Voltage (V) 240 171 60 120 880 629 50 220 960 686 50 240 Figure 3. Balanced, three-wire, delta-connected, three-phase circuit set up for power measurements using the two-wattmeter method. 22 in order to obtain the resistance...
Figure 2.6 depicts this circuit as a voltage source applied to a resistor and inductor in...
Figure 2.6 depicts this circuit as a voltage source applied to a
resistor and inductor in parallel (disregard the capacitor for part
A), which is to be an equivalent to the load. Why is a
resistor and inductor in parallel used for the load versus just
using a resistor?
Find the following (show calculations):
Real power absorbed by the load.
Apparent power of the load.
Reactive power of the load. Don’t use the tangent
function. Instead, find the reactive power using the
apparent...
Q3. from a 240 V, 50 Hz supply as shown in the Figure 3. 24020 Vrms...
Q3. from a 240 V, 50 Hz supply as shown in the Figure 3. 24020 Vrms Inductive load with 0.6 lagging Load current 50 A Ohle Capacitor to be connected for power factor improvement Figure 3: a) Assuming that the capacitor shown in the figure is disconnected, calculate the load real (PL), reactive(Q1), and apparent power(SL) (5 marks) b) Draw the load power triangle and indicate real (P.) reactive (Q.), apparent (SL) power, and power factor angle (@.) (5 marks)...
For the circuits shown find the average power and reactive power delivered by the source. 3.2 o.SH
Two loads, A and B, are connected in parallel
across a 1-kV-rms 60-Hz line, as shown in (Figure 1). Load
Aconsumes 10 kW with a 60 percent lagging power factor.
Load B has an apparent power of 20 kVA with an 80 percent
lagging power factor.
a) Find the power delivered by the source.
b) Find the reactive power delivered by the source.
c) Find the apparent power delivered by the source.
d) What is the power factor seen by...
For the circuit in the given figure, find the average, reactive, and complex power delivered by the dependent voltage source. Assume V = 58 2259 V. 40 -j1 2220 v 19 v 129 2V The average power is W. The reactive power is VA. The complex power is ( ) VA
.) An unbalanced Y-Y circuit is shown in Figure 2. Find the average power delivered to the load. 21H 10 cos (4t - 90°) 20 2H 10 cos 4150°) 4Ω 2H 10 cos (4t + 30°) Source Line Load Figure 2
Given the single phase power system shown in Figure 2, determine the following (use 240 V_base and 30 kVA S_ base for the system at Bus 1): a) Draw the per-unit circuit b) Determine the per-unit impedances and per-unit source voltage c) Calculate the load current in both per-unit and in amperes at Bus 3 d) Calculate the apparent power, real power, reactive power and power factor at Bus 1
(8 points) In the quitessential electric power system in the figure, a voltmeter reads the same at the source and at the load, 125 volts. At the source, an ammeter reads 40 amps. The source sees a inductive circuit. The cable (feeder) has a resistance of 0.0631302 ohms and a reactance of 1.2046 ohms. (a) What is the power factor angle, in degrees, at the source; (b) What is the active power delivered by the source; (C) What is the...
Problem 4: Find the complex power S delivered by the voltage source and the power factor seen by the voltage source for the circuit of Figure 4 below. 01 12 4 10 cos 2t v (+ Figure 4
Need help solving the circuit with 120V 60Hz power network
21 Set up the circuit shown in Figure 3. + L1 11 + Ri E1 Xci R3. L2 X3 E2 Xc2 L3 12 XC1,XC2, XC3 R1,R2,R3 (O Local ac power network Frequency (Hz) Voltage (V) 240 171 60 120 880 629 50 220 960 686 50 240 Figure 3. Balanced, three-wire, delta-connected, three-phase circuit set up for power measurements using the two-wattmeter method. 22 in order to obtain the resistance...
Figure 2.6 depicts this circuit as a voltage source applied to a
resistor and inductor in parallel (disregard the capacitor for part
A), which is to be an equivalent to the load. Why is a
resistor and inductor in parallel used for the load versus just
using a resistor?
Find the following (show calculations):
Real power absorbed by the load.
Apparent power of the load.
Reactive power of the load. Don’t use the tangent
function. Instead, find the reactive power using the
apparent...
Q3. from a 240 V, 50 Hz supply as shown in the Figure 3. 24020 Vrms Inductive load with 0.6 lagging Load current 50 A Ohle Capacitor to be connected for power factor improvement Figure 3: a) Assuming that the capacitor shown in the figure is disconnected, calculate the load real (PL), reactive(Q1), and apparent power(SL) (5 marks) b) Draw the load power triangle and indicate real (P.) reactive (Q.), apparent (SL) power, and power factor angle (@.) (5 marks)...
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