Each branch of a three-phase star-connected load consist of a coil of resistance 20 2 and reactance 15 2. The load is supplied at a line voltage of 400 V, 50 Hz. Calculate the following: a. The Real Power drawn by the load. b. The Reactive Power drawn by the load. c. The Apparent Power drawn by the load.
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- An alternating voltage of 110 volts is applied to a circuit with resistance of 8.66 Ohms, inductance of 0.106 Henries, and capacitance of 75.8 microFarads. The frequency of the voltage is 50 Hz. Determine: a. The current in the circuit and its phase angle relative to the applied voltage. b. The voltage drop across each component of the circuit. c. The active and reactive power inputs to the circuit. d. Draw (Not hand-sketch) the equivalent power triangle. e. Is the RLC load of the circuit inductive or capacitive? Why?Assume that the voltage applied to a load is V = 208- 30° V and the current flowing through the load is I = 5415° A a. Calculate the complex power S consumed by this load. b. Is this load inductive or capacitive? c. Calculate the power factor of this load. d. Calculate the reactive power consumed or supplied by this load. Does the load consume reactive power from the source or supply it to the source?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
- Please help with parts d and e.A motor is connected to a 240volt, three phase line. The true power of the motor is 2793Watts. The motor has a current draw of 12amps. Find the amount of capacitance needed to correct the power factor to a value of 95%.Q2. For the circuit shown below, sketch the current waveforms is and io and determine the Average and RMS for both currents. a = 50° T1 50 2 ot Vs = 300 sin 100rt T2 ot
- When a resistor is connected across the terminals of an ac generator (117 V) that has a fixed frequency, there is a current of 0.332 A in the resistor. When an inductor is connected across the terminals of the same generator, there is a current of 0.365 A in the inductor. When both the resistor and the inductor are connected in series between the terminals of this generator, what is (a) the impedance of the series combination and (b) the phase angle between the current and the voltage of the generator? Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise. (a) Number (b) Number Buda i Vrms R Irms.R Circuit 1 Units Units Vrms. Irms, L Circuit 2 > L Vrms R www Circuit 3Let 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?A three phase load has a rating of 200 KW, 4000 volts, 0.7 power factor lagging and a frequency of 50 Hz. Determine the required capacitor bank rating in micro Farad per phase to improve its power factor to 0.9 lagging if: a) The capacitor bank is to be connected in Delta. b) The capacitor bank is to be connected in Star.
- Task 3 A three phase, four wire star connected load consisting of: ZR: a resistor of 9500 in series with a 3H inductor ZB: a resistor of 1950 ZY: a resistor of 1950 in series with a 4µF capacitor Using the equipment available in the power lab (Room T017), connect the given load to a three-phase supply available in the lab and: 3.1. Determine the current of each line and the neutral current and measure the total power supplied by the source. 3.2. Analytically, calculate all currents and the total power and compare with those obtained in measurements. 3.3. Device a method and measure the waveform of the neutral current. Discuss the obtained waveform and the reason for any distortion in the waveform 3.4. Validate your calculations using computer simulationPlease help with the solution.The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three-phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and IT