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The stator and rotor of a three-phase, 440-V, 15-hp, 60-Hz, eight-pole, wound-rotor induction motor are both connected in wye and have the following parameters per phase: R1 = 0.5 , R2 = 0.1 , Xl1 = 1.25 , and Xl2 = 0.2 . The magnetizing impedance is 40and the core loss impedance is 360 , both referred to the stator. The ratio of effective stator turns to effective rotor turns is 2.5. The friction andwindage losses total 200 W, and the stray-load loss is estimated as 100 W. Using the equivalent circuit, calculate the following values for a slip of 0.05 when the motor is operated at rated voltage and frequency applied to the stator, with the rotor slip rings short-circuited: stator input current, power factor at the stator terminals, current in the rotor winding, output power, output torque, and ef?ciency.
Consider the arrangement shown in Figure. A conductor bar of length l is free to move along a pair of conducting rails. The bar is driven by an external force at a constant velocit
Name some application where you see use of serial communication. Within the world of serial communications, there are two different equipments are: DTE stand for Data Termin
Figure shows the cross-section of an electrostatic problem with translational symmetry: a rectangular coaxial cable. The inner conductor is held at 10 volts and the outer conductor
Q. The speed of an 8-bit A/D converter is limited by the counter, which has a maximum speed of 4 × 10 7 counts per second. Estimate the maximum number of A/D conversions per secon
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When both MT 2 and Gate are positive In this junction P 1 N 1 and P 2 N 2 are forward biased whereas junction N 1 P 2 is reverse biased. The gate current flows thr
a) Write down a short note on compensators. b) Classify filter with relevant sketches. c) Illustrate the principle and working of Analog to Digital converter.
What do these 8086 instructions do? STD-Set Direction Flag. when the instruction is implemented ,the direction flag of 8086 is set to 1. IRET-Interrupt Return. This instruc
What is use of co-processor in a typical microprocessor based system. This is a processor that works in parallel with the major processor. This has its own set of specialized i
Explain the difference between a microprocessor and an embedded microcontroller
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