A plant draws 380 A from a 370-V rms line to supply a load with 110...
A single Phase load draws 10 kW from a 410 V line at a power factor of 0.707 lagging. Determine: (a) The rms current (b) The reactive power required by the load (c) We want to correct the power factor to be 0.9 lagging by adding a capacitor, what will be the new reactive power? (d) draw the power triangle with the old and new reactive powers
A load operating at 3,500 V rms draws 24 A rms at a power factor of 0.7 lagging. Find the complex power taken by the load. (Round your answer to whole numbers.) + j
A computer draws an rms current of 3.90 A at an rms voltage of 120 V. The average power consumption is 220 W. What is the power factor?
We have an amplifier that draws 2A from a 15-V dc power supply. The input signal current is 1mA rms, and the input resistance is 2 k ohm. The amplifier delivers 12V rms to an 8 ohm load. Determine the power dissipated in the amplifier and the efficiency of the amplifier.
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 110-V rms,60-Hz source is applied to a load impedance Z The apparent power entering the load is 120 VA at a power factor of 0.507 lagging References eBook& Resources Learning Objective: Understand apparent power power and power factor Section Break Difficulty Medium value 10.00 points Calculate the complex The complex power is VA. Hints References eBook & Resources
D Question 2 10 pts A three phase full-bridge rectifier draws 12-kW from a power supply that has 150-V phase-to-phase voltage. The power factor is 0.77. What is the maximum (peak) value of the current delivered by the supply? 10 pts DI Question 3 A full bridge, square wave inverter supplies an RL load with R-7-Ohm and L-58-mH. The DC voltage is 90-V and the output waveform frequency is 60-Hz. What is the magnitude of the third harmonic of the...
A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms) to a 5.00 Ohm resistor in the secondary circuit. (a) What should the ratio of turns of the primary to secondary circuit of the transformer be? (b) What is the average power delivered to the secondary? (c) Assuming the transformer to be ideal (i.e., 100% of the power in the primary is transferred to the second), what is the rms current in the primary?
Problem 7 Three three-phase wye-connected loads are in parallel across a three-phase supply. The first load draws a current of 10 A at pf- 0.93 (leading), and the second and third loads (each) draw a current of 20 A at pf= 0.85 (lagging). Suppose the line-to-line voltage is 240 V. Compute the following: a) The transmission line current b) The load power factor c) The complex power supplied by the source
Problem 7 Three three-phase wye-connected loads are in parallel...
a) The DC power supply below is connected to a 110 V RMS, 50 Hz AC mains. The transformer has turns ratio N, : N2 = 10 : 1, and the diodes have forward voltage drop 0.7 V, and the regulator has dropout voltage 1.8 V. We require V 5 V. OUT =2 A GND 110 V rms O A R V Va VC 50 Hz N2 N i. Given the transformer has turns ratio Nį: N2 = 10: 1...