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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.
if a resistor present in the middle of two branches in such a way that their polarities coincide then how do we choose the polarity of that resistor
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 generato
Mesh analysis procedure : 1. Assign a distinct current to every closed loop of the network. 2. Apply KVL around every closed loop of the network. 3. Solve the resulting
Q. Three identical single-phase transformers are to be connected to form a three-phase bank rated at 300 MVA, 230:34.5 kV. For the following configurations, determine the voltage,
describe the circuit and working of a q meter?
Enhancement type MOSFET In these types of devices operate by comprising a channel enhanced in the semiconductor material in which no channel was constructed, they are termed
Types of bias circuit for Class A amplifiers: There are five common types of biasing circuits used with Class A bipolar transistor amplifiers: A. Fixed bias B. Collector
The IC engine based automobiles have been built and sold for more than 100 years. Predominantly the fuels used for running these IC engines have been petrol and diesel. In recent t
When a machine has more than two poles, only a single pair of poles needs to be considered because the electric, magnetic, and mechanical conditions associated with every other pol
Q. Determine the voltage transfer function of the low pass filter circuit shown in Figure, and find the expression for ω 0 .
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