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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.
Define the X-NOR or Exclusive-NOR Gate? This is the EX-OR gate with the output inverted, as shown by the 'o' on the output and the output Q is true if inputs A and B a
Background Information Electrical machines usually consist of copper windings on steel cores, and their AC resistance is greater than their DC resistance. The power loss has
solar
region of convergence of (Z+2)*(12z-1)/((3z-1)*(4z+1 ))
Multitasking - Single Processor Many Users Many Tasks In multitasking or also called time sharing systems multi user more than one users are sharing one processor
List few applications of microprocessor-based system. It is used: i. For measurements, display and control of current, voltage, temperature, pressure, etc. ii. For traff
Determine the magnitude of the current: For the circuit of Figure below determine the magnitude of the voltage "drops" across each resistor R1 - R7. Determine the magnitude
Q. Explain about Hybrid network? Hybrid network (sometimes known as a hybrid coilor duplex coil) in a telephone set is a special balanced transformer used to convert a two-wire
block diagram of digital control system and explain each block
Define Successive Approximation Digital to Analog Converter? Successive approximation ADCs transform analog signals to digital data by comparing the incoming analog signal alo
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