- Three phase induction motor has rating of 50 kW, 960 rpm, 400 V. 50 Hz, 6-pole. The motor parameters are R = 0.08 , R = 0.1 , X = X = 0.3 2 and the moment of inertia 10 kg- m². It is required to stop the motor from its no load speed under reverse breaking operation. Find the required value of external resistance that need to put in rotor circuit such way that breaking will be achieved with minimum time. What is breaking time.
- Three phase induction motor has rating of 50 kW, 960 rpm, 400 V. 50 Hz, 6-pole. The motor parameters are R = 0.08 , R = 0.1 , X = X = 0.3 2 and the moment of inertia 10 kg- m². It is required to stop the motor from its no load speed under reverse breaking operation. Find the required value of external resistance that need to put in rotor circuit such way that breaking will be achieved with minimum time. What is breaking time.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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![Three phase induction motor has rating of 50 kW, 960 rpm, 400 V. 50 Hz, 6-pole. The motor
parameters are R = 0.08 N, R' = 0.1 N, X = X = 0.3 N and the moment of inertia 10 kg
m². It is required to stop the motor from its no load speed under reverse breaking operation.
Find the required value of external resistance that need to put in rotor circuit such way that
breaking will be achieved with minimum time. What is breaking time.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc1c54bd7-9fdb-41bc-8d6b-f6f0ad2a19f4%2Fb9af974b-4f83-40fc-ad88-4e3dd3b08a7b%2Fppwxsx_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Three phase induction motor has rating of 50 kW, 960 rpm, 400 V. 50 Hz, 6-pole. The motor
parameters are R = 0.08 N, R' = 0.1 N, X = X = 0.3 N and the moment of inertia 10 kg
m². It is required to stop the motor from its no load speed under reverse breaking operation.
Find the required value of external resistance that need to put in rotor circuit such way that
breaking will be achieved with minimum time. What is breaking time.
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