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120V, 60 Hz source is connected to a distribution line whose resistance, and inductive reactances are 0.1Ohm, j0.2 Ohm, respectively. Single phase, 2HP, 120V, 0.75 lagging pf. motor and 2.4Kw, 120V heater is connected in parallel. Find the value of the capacitor connected in parallel with the load to improve the power factor to unity.Find• current flowing in each load before connecting the capacitor and after connecting capacitor,• Line losses before connecting the capacitor and after connecting capacitor,• power factor of the source before connecting the capacitor and after connecting capacitor,• Power consumed by the load before connecting capacitor and after,• Total impedance of the circuit before connecting capacitor and after,• The value of the capacitor to improve the power factor to unity. (connect the capacitor in parallel with the load to improve the power factor)
A load consists of a resistance R in parallel with a capacitor of reactance X. The load is fed from a single phase supply through a line of impedance 8.4 + j11.2 ohms. The rms voltage at the load terminal is 1200 at 0 degress V rms,
A 500-kVA, 60Hz, 5000V, Y-connected, 10 pole synchronous has internal parameters of Armature Resistance 1ohm amd Synchronous Reactance 10ohms. The generator is operating at rated values and 0.9 pf leading.
What is the conversion efficiency of an amplifier in which the effective value of the current through a 2.2-k? load is 5 mA and the drain on the 18-V dc supply is 3.8 mA
a. Plot the spectra of X(w) = t sinc(wt/2). Let t = 1 and -20 =
a. A point is equally likely to fall anywhere on the semi-circle defined by the equations, x^2+y^2=1, y>=0. Find the pdf of the y-component of the point's position. b. A point is equally likely to be found anywhere on the surface
Determine the service overcurrent protection device rating and undergrounded and grounded service conductor size. Use XHHW copper conductor and 75oC device terminal ratings and allow for 25% load growth. Do not use larger than 600 kcmil conductor ..
Find steady-state error to the unit ramp input. If it is greater than 0.1, design a lag compensator that helps to achieve the steady-state error (to the unit ramp input) no more than 0.1. (Hint: Use Matlab to nd the dominant closed-loop poles.)
The unknown input impedance of a horn antenna operated at a frequency of 300MHz is measured using a slotted transmission line and a Smith Chart. When the antenna is connected to the slotted line, the VSWR on the line is measured to be 4
1.write down the electrical status equation for the circuit with serial connection of RLC- elements in vector form and darw diagram for this circuit. 2. Describe the work of electrical source in the voltage generator regime. and what is the working..
Consider a uniform electric field of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point is 80 V, what is the voltage at a point 1.0 m directly west of that point
Assume a house with 100 m2 of roof area. All the water runoff from the roof is collected into barrels of 55 gal capacity. The stored water is used to irrigate flower beds at the rate of 10 gal/day.
(1) What does the words leads and lag represent in factor In waveform (2) How would you change the power factor if you needed to
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