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A 2200-V, 1000-hp, three-phase, 60-Hz, 16-pole, wye-connected, wound-rotor induction motor is connected to a 2200-V, three-phase, 60-Hz bus that is supplied by synchronous generators. The per-phase equivalent circuit of has the following parameters: R1 = 0.1 = R 2, Xl1 = 0.625 = X l2, and Xm = 20 .Ifthe machine is driven at a speed of 459 r/min to act as a generator of real power, find the rotor current referred to the stator and the real and reactive power outputs of the induction machine.
Q. What is the basic principle of oscillation in an RC phase shift oscillator. With a neat sketch explain its working? For producing oscillations there must have positive feedb
Give an industrial look at modern CAM/CAD. Define explicit, implicit and parametric representations. What are the basic advantages of parametric representations over the impli
Commercial Losses in Electrical Systems Commercial losses are caused by pilferage, theft, defective meters, and errors in meter reading and in estimating un-metered supply of
Thyristor The name thyristor is derived bya combination of the capital letters from thyratron and translstor. This means that thyristor is a solid state device like a
There are two practical ways of improving commutation i.e. of making current reversal in the short - circuited coil as sparkless as possible. These methods are known as (i) resista
(a) A digital product is being tested for compliance to CISPR 22 Class A requirements. The receiving antenna is placed a distance of 30 m away and is attached to a 50 V receiver w
Ask question (c) Reduce each of the given signal transmission situations to a source, coupling path(s), and receptor: (i) AM radio transmission to the human ear. (ii) TV transmis
Compute the Fourier Transform of the following function: f(x) = exp( - x 2 /(2σ 2 )) cos (2πx/k) where σ and k are constants. What is the minimum sampling rate required
For an operating point half way up the parallel section and the discharge valve and the discharge fully open, design a proportional only controller which will give closed loop dyna
block diagram of digital control system and explain each block
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