sketch a labeled equivalent circuit of a 3 phase synchronous generator having an output voltage E supplying load P + jQ through an impedance R + jX when voltage at the load is V

A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and L=40mH. (a) Determine the power factor of the circuit and state whether it is lagging or leading. (b) Determine the real and reactive power absorbed by the load. (c) Calculate the peak magnetic energy Wint stored in the inductor by using the expression Wint=L(Irms)2 and check whether the reactive power Q=Wint is satisfied. (Note: The instantaneous magnetic energy storage fluctuates between zero and the peak energy. This energy must be sent twice each cycle to the load from the source by means of reactive power flows.)

Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor, and a 4 capacitor. (a) Draw the circuit diagram. (b) Compute the series impedance. (C) Determine the current I delivered by the source. Is the current lagging or leading the source voltage? What is the power factor of this circuit?

In the equivalent circuit, when the slipio 1 Cire at stert) rotor cirouit has much lower impedance than magnetising eircuit. At start approximates to: Iph Cfull) Toad' Ri Vph. craduced) XI+x² Cequele Xea) can be obtained from the input reactive R1+ RZ' CRTeStator Resistance & RZé Ro tor Resistanca) c20 be obtained from the input. powerand current pawer and current Total real power P=3 CIine) CR the) W Total absgrbed nductor reactive pawer Qy = 3E Lined. Xeq VAr The mea sured eddy corrent prake torque O.48 Nm. The line corrent is 4.94A, Total (3ph) inputreal power is 214.7W. The Statorphae resistance is Voltage CVey)s 29.V, stahr What is Xeq, R1+R2, R), R2

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A single-phase AC voltage controller has a resistive load R = 10 Ohm, and the RMS input voltage is Vs = 230 V, 60 Hz. The delay angle is 120 degree. Then the RMS output voltage is: Select one: O a. 101 V O b. 39 V O c. None of the above O d. 143 V O e. 215 V

A 40kW induction motor with a lagging power factor of 0.76 is supplied by a 120Vrms 60Hz sinusoidal voltage source. find the capacitance needed in parallel with the motor to raise the power factor to (a) 0.9 lagging and (b) 1.0

Please show you detailed solution Number 10 A voltage of 250 volts at 50 Hz is impressed on a circuit having a 60-ohm resistor, 35-?F capacitor, and a 0.25-henry inductor in series. Determine power factor. A. 0.979 C. 0.924 B. 0.862 D. 0.707

8. The total power supplied to a balance delta load is found in the same way as for a balance wye load. True False Either Neither 12. A load of 20 + j35 ohms is connected across a 220 V, 60 Hz supply. Find the reactive power of the load in var. 595 2420 1042 1382 13. A type of DC source where the characteristic output voltage has perfect unidirectional waveform and is based on electrochemical principle. Generator Inverter Converter Battery 14. Calculate the Rf of a circuit whose impedance is 20+j35 and current of 2A. 0.86 0.91 0.50 0.71 15. What capacitor shall be installed in parallel with a circuit to achieve a unity power factor if the reactive power of a circuit is 200VARS and the voltage is 100V. 80.45 microfarad 53.05 microfarad It's already in unity 62.45 microfarad

9. A noninductive load with a resistance of 30 Q2 is connected in series with a capacitor. The capacitor has a capacitive reactance of 25 Q and negligible resistance. The series circuit is energized from a 210 V, 60 Hz source. Determine: a. the impedance of the series circuit. b. the current, in amperes. c. the loss in volts across the noninductive resistance load. d. the loss in volts across the capacitor.