Each phase load consists of a 2002. resistor and a 1002, inductive reactance. With a line voltage of 415 V RMS, calculate the average power taken by the load if: (a) the three-phase loads are A-connected. (b) the loads are Y-connected.
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- The instantaneous voltage across a circuit element is v(t)=400sin(t+30)volts, and the instantaneous current entering the positive terminal of the circuit element is i(t)=100cos(t+10)A. For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using cos(t) as the reference.The instantaneous power absorbed by the load in a single-phase ac circuit, for a general R LC load under sinusoidal-steady-state excitation. is (a) Nonzero constant (b) Zero (c) Containing double-frequency componentsThe p.u. impedance value of an alternator corresponding to base values of 13.2 kV and 30 MVA is 0.2 p.u. Then the p.u. impedance value of an alternator for the new base values of 13.8 kV and 50 MVA is......
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- I- Purely Inductive Load 1. Sketch a three-phase 100VAC RMS phase-voltage, Wye (Y) Connected power supply with a Wye (Y) Connected load with purely inductive j3002 per phase. 2. Assume the phase-voltage of phase-A at the source side has an angle of zero. Calculate both magnitudes and phase-angles for phase voltage, line voltage, phase current, and line current at the load side. Also, compute load real power, apparent Power, and power factor. Ve V VLine_V l A ILine. V.A. P.F. (lagging or leading)The section bus-bars A and B are linked by a bus-bar reactor rated at 6000 kVA with 12% reactance. On bus-bar-A, there are two generators each of 10 MVA with 8% reactance and on bus-bar-B, two generators each of 6000 kVA with 10% reactance. Find the steady MVA fed into a dead short circuit all phases on B with bus-bar reactor in the circuit.Discuss the concept of reactive power and its role in grid stability.
- do the discussion about Power measurement using Wattmeter, Ammeter and Voltmeter & Power measurement using Electronic Single phase measurement. Discuss the differences between both data. Why these problems occur and how to minimize it. Explain the role of power factor.Problem 2 The circuit diagram of a certain load is presented below. Determine the following: a. The power factor of the load. b. If the load is connected across a 400 Vrms source, determine the real and reactive power consumed by the load. c. From (b), determine the value of the capacitor to be placed in parallel with the load in order to improve the power factor of the load to 95% lagging. From (b), A synchronous motor is installed in parallel with the load to correct the pf. The motor is rated 5 hp operating at 60% efficiency. Assuming that the motor is running at rated power. Determine the apparent power and power factor of the motor in order to improve the load's pf to 95% lagging. 202 500 µF HI + VL -20 mH 5Ω >0.5VL m 15 mHNeed asap pls help. Solve for the voltages across and currents through each component. Show the complete solution and explain. The total power should be zero..