parallel capacitance needed to correct a load
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- Let 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 single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and L=40mH. (a) Determine the power factor of the circuit and state whether it is lagging or leading. (b) Determine the real and reactive power absorbed by the load. (c) Calculate the peak magnetic energy Wint stored in the inductor by using the expression Wint=L(Irms)2 and check whether the reactive power Q=Wint is satisfied. (Note: The instantaneous magnetic energy storage fluctuates between zero and the peak energy. This energy must be sent twice each cycle to the load from the source by means of reactive power flows.)Calculate the capacitance that when placed in parallel with the load, will raise the power factor to unity. Please answer in typing format please ASAP for the like Please
- 15 A of current is taken by a non-inductive load at 125 V. In order that the same current shall be generated from 240 V, 50 Hz mains. An inductor is now also then connected in series. Note: The resistance of the inductor should be ignored and also assume the waveform to be sinusoidal. Determine the phase difference between the current and the applied voltage, the impedance of the circuit and the inductance of the inductor.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 otCalculate the value of capacitance in the following figure that must be connected in parallel with the load to correct the source power factor to 0.94 lagging. The frequency f = 60 Hz
- A 60 Hz sinusoidal voltage v = 141sinwt is applied to a series RL circuit. The values of the resistance and the inductance are 3 ohms and 0.016 henry respectively. a) Compute the rms value of the current and its phase angle with respect to the voltage.b) write the expression of the instantaneous current.A 60 Hz sinusoidal voltage v = 141sinwt is applied to a series RL circuit. The values of the resistance and the inductance are 3 ohms and 0.016 henry respectively. a) Compute the rms value of the current and its phase angle with respect to the voltage. b) write the expression of the instantaneous current.A load has a leading power factor. a) Is it a capacitive or inductive load? b) Is the reactive power positive or negative? c) Repeat for a load with lagging power factor
- Problem 4 Write the sinusoidal expressions for voltages and currents having the following rms values at a frequency of 59 Hz with zero phase shift: a) 4.25 mV b) 5000 mA c) 2.22 kV d) 60 MAThe voltage across a load is Vt : 104/2 cos(wt +75°), and the current through the load is ¡(t) = 2/2 cos(wt + 30°). The reference direction for the current points into the positive reference for the voltage. Determine the complex power and if this load is inductive or capacitive? S = 14140 + jl14140 Inductive S = 40000Z45° %3D Сараcitive S = 2000Z105° Сараcitive S = 5000 – j5000 InductiveS. 20020°V L rms S. In the circuit in the figure; • L1 load draws 15 kVA with lagging power factor 0.6. • The load L 2 draws 6 kVA with a leading power factor of 0.8. According to this; What is the value of the reactive power for the load L, ? O 9000 O -3600 O 2700 O 12000 O 4800 O 4500