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Using rms values to represent their magnitudes, the voltage across and the current into a load...
The phasor voltage across a certain load is V = 1000√ 2∠ 30∘ V, and the...
The phasor voltage across a certain load is V = 1000√ 2∠ 30∘ V, and the phasor current I = 15 √ 2∠ 70 ∘ A. Determine the power factor. Determine the power. Determine the reactive power. Determine the apparent power delivered to the load. Determine the impedance. Is the power factor leading or lagging?
3. If the voltage and current (both are rms values) supplied to a circuit or load...
3. If the voltage and current (both are rms values) supplied to a circuit or load by a source are Varm) = 460?0° V, Is(m)-1414L-45° A. Determine the a) the power supplied by the source which is dissipated as heat or energy in the circuit, b) the power stored in the reactive components and c) the power factor angle and power factor 4. An ideal transformer is rated to deliver 460 KVA at 380 V to a customer T Customer's...
20. The voltage and current in an electrical load is given by v(t) = 100 cos(wt...
20. The voltage and current in an electrical load is given by v(t) = 100 cos(wt + 15°) and i(t) = 2 cos(wt – 15°). The reactive power Q in the load is 21. An electrical load absorbs an average power of 8kW at a leading power factor of 0.8. The reactive power in the load is 22. A balanced Y-connected load with an impedance of 104–30°N? per phase is supplied by a balanced A-connected source with Va = 208/30°V...
Q1. AC Power Calculation 1. For the following voltage and current phasors, calculate the complex power,...
Q1. AC Power Calculation 1. For the following voltage and current phasors, calculate the complex power, apparent power, real power, and reactive power. Specify whether the pf is leading or lagging. (a) V = 120/ 30 V rms, 1 = 6.2/ - 25 A rms (b)V= 220/30 mms, 1 = 0.50/60 Arms (c) V = 250/- 10 Vrms, I = 6.21 - 25 Arms (d)V= 110/30°Vrms, 1 = 0.40/-70'Arms (e) P = 100kW, pf = 0.88 lagging
15. (15 Points) For the following RMS voltage and current, answer the following questions: Voltage is...
15. (15 Points) For the following RMS voltage and current, answer the following questions: Voltage is given by v(t) = 12 cos(2t +30°) Current is i(t) = 4 cos (2t +10°) a. What is the Average power? b. What are the Phasors of each? c. What is the Complex Power? d. What is the Reactive Power? e. What is the Power Factor? BONUS 1. (5 Points) If an AC circuit has a current lagging the voltage, what type of circuit...
112 mann Is → I 2652 250 20° V(rms) -j100 12 j392 Quiz 12b The load...
112 mann Is → I 2652 250 20° V(rms) -j100 12 j392 Quiz 12b The load L is the series resistor and inductor in parallel with the capacitor. a) Calculate the rms phasors Vi and IL | Vel= Vrms. Phase angle Vų = ° (Degrees) (smallest negative angle) | IL 1 = Arms Phase angle IL = (Degrees) (smallest negative angle) b) Calculate the average power and magnetizing reactive power absorbed by the (26+j 39) 22 (Ohm) elements. Pavg =...
Q5: The circuit show below has two loads connected to 120 V (rms), 60Hz, house-hold supply....
Q5: The circuit show below has two loads connected to 120 V (rms), 60Hz, house-hold supply. The load-1 is a resistive load (lamp) with a total power of 5 kW. The load-2 is a motor drawing 10 kVA at 0.6 power factor, lagging. The capacitor is initially not connected a) Calculate the load currents (phasor) I and 12 14] b) Calculate the supply current I c) What is the power factor of the source when it supplies to both loads?...
A 240-Volt rms, 60-Hz source is connected in parallel with two loads. Compute the total reactive...
A 240-Volt rms, 60-Hz source is connected in parallel with two loads. Compute the total reactive power in KVAR) supplied by the source and the overall power factor. Then, select the nearest answer. Load 1 12 kW Load 2 18 kW Ws = 24020° V rms pf = 0.7 lagging pf=0.8 leading О О О О Select one O Q = - 26.0; p. f. — 0.756 0 0 — — 26.0; p. f. — 0.875 Q = -6.0; p....
(15 pts.) A voltage source with 115 V rms value, is feeding three loads, which are...
(15 pts.) A voltage source with 115 V rms value, is feeding three loads, which are in parallel to one another. The information about the loads is as follows L1: 200 W, at pf .92 lagging L2: 250 VA, at pf= .81 leading L3: 200 VARs at pf .85 lagging a. (1 point) Show the diagram depicting the given system 5 ะ Jr 2 + b. (6 points) Calculate S, P, Q, and 6 for each of the loads c....
(a) Calculate the value of I, as shown in Figure 2(a) [12 Marks) *12 LOAD 2...
(a) Calculate the value of I, as shown in Figure 2(a) [12 Marks) *12 LOAD 2 Real Power P=16 kW Power Factor 0.85 lagging Vs LOAD 1 Real Power P=12 kW Power Factor 0.866 leading 2202 0° V LOAD 3 Reactive Power Q = 20 KVAR Power Factor 0.6 lagging Figure 2(a)
3. If the voltage and current (both are rms values) supplied to a circuit or load by a source are Varm) = 460?0° V, Is(m)-1414L-45° A. Determine the a) the power supplied by the source which is dissipated as heat or energy in the circuit, b) the power stored in the reactive components and c) the power factor angle and power factor 4. An ideal transformer is rated to deliver 460 KVA at 380 V to a customer T Customer's...
20. The voltage and current in an electrical load is given by v(t) = 100 cos(wt + 15°) and i(t) = 2 cos(wt – 15°). The reactive power Q in the load is 21. An electrical load absorbs an average power of 8kW at a leading power factor of 0.8. The reactive power in the load is 22. A balanced Y-connected load with an impedance of 104–30°N? per phase is supplied by a balanced A-connected source with Va = 208/30°V...
Q1. AC Power Calculation 1. For the following voltage and current phasors, calculate the complex power, apparent power, real power, and reactive power. Specify whether the pf is leading or lagging. (a) V = 120/ 30 V rms, 1 = 6.2/ - 25 A rms (b)V= 220/30 mms, 1 = 0.50/60 Arms (c) V = 250/- 10 Vrms, I = 6.21 - 25 Arms (d)V= 110/30°Vrms, 1 = 0.40/-70'Arms (e) P = 100kW, pf = 0.88 lagging
15. (15 Points) For the following RMS voltage and current, answer the following questions: Voltage is given by v(t) = 12 cos(2t +30°) Current is i(t) = 4 cos (2t +10°) a. What is the Average power? b. What are the Phasors of each? c. What is the Complex Power? d. What is the Reactive Power? e. What is the Power Factor? BONUS 1. (5 Points) If an AC circuit has a current lagging the voltage, what type of circuit...
112 mann Is → I 2652 250 20° V(rms) -j100 12 j392 Quiz 12b The load L is the series resistor and inductor in parallel with the capacitor. a) Calculate the rms phasors Vi and IL | Vel= Vrms. Phase angle Vų = ° (Degrees) (smallest negative angle) | IL 1 = Arms Phase angle IL = (Degrees) (smallest negative angle) b) Calculate the average power and magnetizing reactive power absorbed by the (26+j 39) 22 (Ohm) elements. Pavg =...
Q5: The circuit show below has two loads connected to 120 V (rms), 60Hz, house-hold supply. The load-1 is a resistive load (lamp) with a total power of 5 kW. The load-2 is a motor drawing 10 kVA at 0.6 power factor, lagging. The capacitor is initially not connected a) Calculate the load currents (phasor) I and 12 14] b) Calculate the supply current I c) What is the power factor of the source when it supplies to both loads?...
A 240-Volt rms, 60-Hz source is connected in parallel with two loads. Compute the total reactive power in KVAR) supplied by the source and the overall power factor. Then, select the nearest answer. Load 1 12 kW Load 2 18 kW Ws = 24020° V rms pf = 0.7 lagging pf=0.8 leading О О О О Select one O Q = - 26.0; p. f. — 0.756 0 0 — — 26.0; p. f. — 0.875 Q = -6.0; p....
(15 pts.) A voltage source with 115 V rms value, is feeding three loads, which are in parallel to one another. The information about the loads is as follows L1: 200 W, at pf .92 lagging L2: 250 VA, at pf= .81 leading L3: 200 VARs at pf .85 lagging a. (1 point) Show the diagram depicting the given system 5 ะ Jr 2 + b. (6 points) Calculate S, P, Q, and 6 for each of the loads c....
(a) Calculate the value of I, as shown in Figure 2(a) [12 Marks) *12 LOAD 2 Real Power P=16 kW Power Factor 0.85 lagging Vs LOAD 1 Real Power P=12 kW Power Factor 0.866 leading 2202 0° V LOAD 3 Reactive Power Q = 20 KVAR Power Factor 0.6 lagging Figure 2(a)
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