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The per-phase synchronous reactance of a three-phase, wye-connected, 2.5-MVA, 6.6-kV, 60-Hz turboalternator is 10 . Neglect the armature resistance and saturation. Calculate the voltage regulation when the generator is operating at full load with (a) 0.8 power factor lagging, and (b) 0.8 power factor leading.
Next, let us consider the case of a balanced delta-connected load with impedance of 5 45° supplied by a three-phase, three-wire 100-V system, as shown in Figure (a). We shall dete
Since dc motors of various types are used extensively in control systems, it is essential for analytical purposes that we establish a mathematical model for the dc motor. Let us co
Q. Define amplification factor? Amplification factor μ It is the ratio of the drain -source voltage (ΔVDS) to the change in the gate to source voltage (ΔV GS ) at constan
Find V and I in the figure given below using ideal diode model
Pins and Signals As discussed earlier that 8085 microprocessor chip has 40 pins shown various pins and signals of 8085 microprocessor. All these signals can be c
Q A point charge Q 1 =-5 nC is located at (6, 0, 0). Compute the voltage v ba between two points a(1, 0, 0) and b(5, 0, 0). Comment on whether point a is at a higher potential wi
Q. Write a short note on the frequency response of a R-C coupled amplifier. At low frequencies ( , the reactance of coupling capacitor Cc is quite high and hence very small pa
Classification of Solids into Insulators, Semiconductor and Conductors A solid can conduct electric current if the electrons can move in it. This is possible only when an ener
Illustrate the conventional representations of the following guide to the selection of Fits: (i) Slack Running Fit (ii) Loose Running Fit (iii) Easy Running Fit (iv) No
Describe the nature of electricity
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