Q2: For the circuit shown below, determine the apparent power delivered by the source, power dissipated at the 1 2 resistance, and the reactive power of the of the inductive reactance. Calculate also the power factor of the load
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- Consider a load impedance of Z=jwL connected to a voltage and V let the current drawn be I. (a) Develop an expression for the reactive power Q in terms of ,L, and I, from complex power considerations. (b) Let the instantaneous current be i(t)=2Icos(t+). Obtain an expression for the instantaneous power p(t) into L, and then express it in terms of Q. (c) Comment on the average real power P supplied to the inductor and the instantaneous power supplied.Let a series RLC network be connected to a source voltage V, drawing a current I. (a) In terms of the load impedance Z=ZZ, find expressions for P and Q, from complex power considerations. (b) Express p(t) in terms of P and Q, by choosing i(t)=2Icost. (c) For the case of Z=R+jL+1/jC, interpret the result of part (b) in terms of P,QL, and Qc. In particular, if 2LC=1, when the inductive and capacitive reactances cancel, comment on what happens.A balanced -connected impedance load with (12+j9) per phase is supplied by a balanced three-phase 60-Hz,208-V source, (a) Calculate the line current, the total real and reactive power absorbed by the load, the load power factor, and the apparent load power, (b) Sketch a phasor diagram showing the line currents, the line-to-line source voltages, and the -load currents. Use Vab as the reference.
- For the circuit below, find the following: (a) Apparent power absorbed by the loads (i.e. impedances). (b) Real power absorbed by the loads and reactive - power absorbed by the loads. (c) Power factor seen by the source.The three-phase balanced load system shown in the figure will be analyzed in a continuous sinusoidal state.a) Find the total active and reactive power consumed in the load, with vR (t) = Cost Volt, Z∆ = α + βj,Find the phasor values of Ir, Is and It line currents.b) C capacities are connected to the circuit in order to provide compensation, C capacityCalculate what the value should be. α=3, β=8A) the current supplied by the source B) the impedance seen at the supply (HV side) C) the power dissipated by the tube D) the operating power factor of the fitting E) using a scale phaser, prove your answers and evaluate each technique for determining circuit power factor.
- PLEASE SOLVE THIS QUICKLY The apparent power of the load Z1 in the circuit given in the figure | S1 | = 16 kVA and at 0.8 back power factor, apparent power of Z2 load is | S2 | = 25 kVA and operates at unit power factor. The loads are connected to the source by ZW = 5 + j26 ohm conductive transmission line. Since the supply voltage of the loads is VL = 3.8 kV, find the apparent power seen by the source, the power coefficient and the effective value of the welding voltage.a) Find the average power dissipated in the line shown.b) Find the capacitive reactance that when connected in parallelwith the load will make the load look purely resistive.c) What is the equivalent impedance of the load in (b)?d) Find the average power dissipated in the line when the capacitivereactance is connected across the load.For the following network find a) Isb) PT, QT, ST and PFTc) Draw power triangle d) Raise the power factor to unitye) Compute Is after raising the power factor
- A 480V single phase load has resistance of 70 ohms and inductive reactance of -j45 ohms. Find the real power, the apparent power, and the power factor consumed by the load.A balanced wye-connected three-phase source has line-to-neutral voltages of 440 V rms. Find the rms line-to-line voltage magnitude. If this source is applied to a wye-connected load composed of three 30-Ω resistances, find the rms line-current magnitude and the total power delivered.Assume that a load of 100 kW is connected at the Riverside substation of the NL&NPCompany. The 15-min weekly maximum demand is given as 75 kW, and the weeklyenergy consumption is 4200 kWh. Assuming a week is 7 days, find the DF and the 15-minweekly load factor of the substation