Rioad load BjoLoad Road (50 points) 网Load load source load source An electric dryer with an equivalent series resistance and inductance of values 9 N and 26 mH is plugged into a standard 240V(RMS) 60HZ wall socket. You may assume the phase of the source voltage is zero. a) Calculate the load current. 7. A help (numbers) I load !! In the time domain, A help (formulas) i toad (t) =
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- A circuit branch is found to have an equivalent impedance of Z=120−j45Ω. It is given that this impedance is a series combination of a 120Ω resistor and another passive component. If the circuit has a sinusoidal voltage source whose frequency is 120 Hz. What is the value of the component in series with the 120Ω resistor? (Note: Express the value assuming a metric scaling of μ(10-6). Provide your answer in decimal form, up to 3 decimal places.)In a certain circuit supplied from 50 Hz mains, the potential difference has amaximum value of 500V and the current has a maximum value of 10A. At the instantt=0, the instantaneous values of the p.d. and the current are 400V and 4Arespectively, both increasing positively. Assuming sinusoidal variation, statetrigonometrical expressions for the instantaneous values of p.d. and the current attime t. Calculate the instantaneous values at the instant t=0.015s and find the angle ofphase difference between the p.d. and the current. Sketch the phasor diagram (neednot be to scale).A 40 Ω resistor, a 200 μF capacitor and a 269 mH inductor are connected in series across a voltage source represented by: V = 163.34 sin(100t) volts Determine the following: A.) The rms value of current is A. (a) 0.75 (b) 1.5 (c) 2.5 (d) 3.5 B.) The total impedance of the circuit is ohms. a.) 46.19 b.) 54.37 c.) 65.15 d.) 32.65 C.) The real power supplied is watts (a) 144.35 (b) 125 (c) 175.25 (d) 250 D.) The power factor of the circuit is . (a) 0.707 lagging (b) 0.866 leading (c) 0.6 leading (d) 0.5 lagging
- S.2) The serial impedance of the 300 km power transmission line is 23 + j75 ohm / phase and the shunt acceptance is j500 microS / phase. A power of 50 MW with a power factor of 0.88 under 220 kV interphase voltage from the end of the power transmission line being shot. Using these data of the energy transmission line, a) Characteristic impedance of the energy transmission line, b) Natural apparent power of the energy transmission line according to the 220 kV interphase operating voltage, c) The values of the line parameters A, B, C and D of the transmission line using hyperbolic functions, d) Calculate the maximum power that the power transmission line can transmit.five infinite-impedance volunteers,calibrated to read rms values,are connected as shown below. let R= 200, L=0.400H,C=6.0 Mf, and V=30.0 v. what's the reading of the voltmeter's V1,V2,V3,V4 and V5 if W= 200 rad/sA factory has a large induction heater operating at 1000 V, 50Hz. The current flowing intothe heater is 12.33 A RMS and the true power is 10 kW b) Calculate the reactive power, apparent power and the power factor (PF) for this load.c) If the PF is lower than 0.9, explain the problem from an electrical perspective thencalculate how this load could be balanced practically.d) Draw a diagram to illustrate where the capacitor needs to be placed and what hashappened to the reactive current that was originally flowing from the inductive load backto the supplier? What are the specifications for this capacitor? What would such acapacitor cost? Who could supply this type of component?
- A lightning strikes a 30-m unshielded over-head transmission line tower Which has the following parameters Surge impedance of the tower= 100ohms Surge impedance of lightning channel at tower top =500ohms Tower-footing resistance=10ohms Tower height =30 m Cross-arm height=27m The lightning strike current is assumed to be a constant 30 kA for a duration of 20 µs. The raveling wave propagation speed in the tower is 1.2* 108 m/s. i) Determine the voltage reflection coefficients at tower top and tower foot. ii) Ignoring the phase voltage, determine the insulator voltage after 2µs.A lightning strikes a 30-m unshielded over-head transmission line tower Which has the following parameters Surge impedance of the tower= 100ohms Surge impedance of lightning channel at tower top =500ohms Tower-footing resistance=10ohms Tower height =30 m Cross-arm height=27m The lightning strike current is assumed to be a constant 30 kA for a duration of 20 µs. The raveling wave propagation speed in the tower is 1.2* 108 m/s. i) Determine the voltage reflection coefficients at tower top and tower foot. ii) Determine the time of travel from tower top to tower foot. iii) Determine the time of travel from cross arm to tower foot. iv) Draw the voltage lattice diagram with proper labels of the time. v) Ignoring the phase voltage, determine the insulator voltage after 2µs. b) The insulator voltage approaches a constant value after 2 µs. If the basic impulse insulation level (BlL) of the insulator for phase conductor is 150 kV, evaluate the condition of the…If the values of real power and reactive power is specified for a bus, then it is called as PQ bus. Select one: True False
- A SERIES RC CIRCUIT TAKES A CURRENT WHOSE EQUATION Is 2 sin (754t+40) AMPERE. WHEN CONNECTED TO A SOURCE OF EMF HAVING THE EQUATION e = 340sin 754 VOLTS. CALCULATE, (A) THE VALUE OF Z, R, AND XC, (B) CAPACITANCE, AND (C) AVERAGE POWER.An investor own two large stores at Dubai. Both malls are connected in parallel and operating at an unknown voltage. The local utility system voltage is 13.8 kVrms and supplied power to the malls through a feeder line with impedance equal to 1+j2.5 ohms. Store 1 is consuming 400 kW at 0.8 pf lagging while Store 2 is consuming 300 kVAR at 0.75 pf lagging. Determine the following: a) The stores' operating rms voltages. b) The total real and reactive power of the ehole system. c) The overall pf of the whole system.For the frequency-domain circuit , calculate: 1. a) the rms magnitude of Vo;2. b) the average power dissipated in the 9 Ω resistor;3. c) the percentage of the average power generated by the idealvoltage source that is delivered to the 9 Ω load resistor.