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A 3-phase, 4 pole, 50Hz, 380V, IM, A-Conn. has Z₁ = 0.8+0.4 and Zreforz+j #22/phase and No-load current of 1-j1 A. The full load speed is 1410 vipm@Find Motor efficiency and P.F 2 if the Torque is decreased by 10% Find efficiney and Power Factor.

A 3-phase, 4 pole, 50Hz, 380V, IM, A-Conn. has Z₁ = 0.8+0.4 and Zreforz+j #22/phase and No-load current of 1-j1 A. The full load speed is 1410 vipm@Find Motor efficiency and P.F 2 if the Torque is decreased by 10% Find efficiney and Power Factor.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q/ A 3-phose, 4 pole, 50Hz, 380V, IM, X-Conn. has Z₁ = 0.8+0.4 and Erecor+j2 52/phase and No-load current of 1-j1 A. The full load speed is 1410 vipm@ Find Motor efficiency and P.F 2) if the Torque is decreased by 10% Find efficiency and Power Factor.
Transcribed Image Text:Q/ A 3-phose, 4 pole, 50Hz, 380V, IM, X-Conn. has Z₁ = 0.8+0.4 and Erecor+j2 52/phase and No-load current of 1-j1 A. The full load speed is 1410 vipm@ Find Motor efficiency and P.F 2) if the Torque is decreased by 10% Find efficiency and Power Factor.
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The voltage across terminals, resistance across terminals, and magnetic force are three factors that affect motor performance. The output-to-input ratio is referred to as rotor efficiency. The output speed reduces correspondingly as the output torque rises. A motor performance curve, which frequently includes motor current draw and motor efficiency, is a typical way to demonstrate this power, speed, and torque connection. The torque delivered to the motor slows it down as the load grows, and "slip" heightens. The rotor conductors are severed by the stator magnetic field more frequently. The rotor is subjected to more force, increasing the rotor torque.

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