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Q. A synchronous motor operates continuously on the following duty cycle: 50 hp for 8 min, 100 hp for 8 min, 150 hp for 10 min, 120 hp for 20 min, and no load for 14min. Specify the required continuous - rated hp of the motor. (Note : A motor rating is normally chosen on the basis of the rms value given by)
where k is a constant accounting for reduced ventilation at standstill.)
why the primary bushing of 7970/13.8 distribution transformer blown up when connected wye on a 13.8 kv source?
(a) Find the Thevenin equivalent of the circuit shown in Figure (a) at the terminals A-B. (b) Determine the impedance that must be connected to the terminals A-B so that it is m
how the interrupts are affected by system rest
Consider the circuit shown in Figure with R 0 , (b) the quality factor Q, and (c) the maximum impedance Z m . Comment on the applicability of the universal resonance curve.
A voltage amplifier without feedback has a nominal gain of 500. The gain, however, varies in the range of 475 to 525 due to parameter variations. In order to reduce the per-unit ch
Q. The machine of Problem can be used as a motor. Let the terminals of the coil be connected to a voltage source of 1 kV rms. If the motor runs at 1800 r/min and draws a current of
A linear circuit component is one that has a linear I V characteristic
Q. (a) Draw the logic diagram of the enabled D latch using only NAND gates. (b) Complete the timing diagram of Figure (a) of theDlatchwhose block diagram and truth table are giv
Explain the Meaning of Duality in Boolean Algebra? Any algebraic equality that derived from the axioms of the Boolean algebra remains true when the operators OR and AND are in
What is the impedance Z between terminals A and B of the networks shown below? Express your answers in polar form. Three voltages represented by v 1 (t)=100cosωt, v 2 (t)=7
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