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A three-phase, 50-hp, 440-V, 60-Hz, four-pole, wound-rotor inductionmotor operates at a slip of 0.03 at full load,with its slip rings short-circuited. The motor is capable of developing a maximum torque of two times the full-load torque at rated voltage and frequency. The rotor resistance per phase referred to the stator is 0.1 . Neglect the stator resistance and rotational and stray-load losses. Find the rotor copper loss at full load and the speed atmaximumtorque.Compute the value of the per-phase rotor resistance (referred to the stator) that must be added in series to produce a starting torque equal to the maximum torque.
field effect transistor as switch?
Define Series VAr Compensation? For very long transmission lines, the inductive reactance of the line becomes so high that not much power can be transmitted through the line, s
Transistor Hybrid model:- Make Use of h - parameters to explain a transistor have the following benefits. a) h - Parameters are real numbers that are up to radio frequ
Bureau of Energy Efficiency Setting up of the Bureau of Energy Efficiency The Bureau of Energy Efficiency has been established with effect from 1st March, 2002 under the
A preliminary design with ideal resistors, inductors and capacitors, will get 25 marks. If the design does not meet the specifications then one mark will be deducted following the
Draw the memory map of TPA in a personal computer and explain different areas. The transient program area holds the DOS operating system and other programs which control the co
A dc shunt motor runs off a constant 200-V supply. The armaturewinding resistance is 0.4, and the ?eld winding resistance is 100 . When the motor develops rated torque, it draws
Data rates in PSTNs: A voice channel in a PSTN is band limited with a nominal bandwidth of 3.1 kHz. A first-cut estimate of this can be attained from Nyquist's theorem that app
A pure sine wave along with a frequency of 100Hz is sampled at 150Hz. At which point one of the subsequent frequencies would you expect an alias? A) 75Hz B) 100Hz C) 150Hz
What are usue and all the details of 8051 microcontroller with its block diagram pin diagram and all other details
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