- How To Solve This Question 1 (23.57 KiB) Viewed 21 times
How to solve this question?
-
answerhappygod
- Site Admin
- Posts: 899604
- Joined: Mon Aug 02, 2021 8:13 am
How to solve this question?
How to solve this question?
(b) You are part of a team trying to restore a historic electric locomotive, which is driven by a large induction motor. During the restoration process, the induction motor was refurbished and, due to its age, its rated torque has been reduced to half of its initial rated torque. Before refurbishment, you tried to test it, and applied a mechanical load with inertia JL = 600 kg.m? You measured the inertia of the motor's own rotor, and found it to be JM = 1,500 kg-m? The motor managed to accelerate to 906 rpm within 50 seconds. The synchronous speed is 960 rpm. Determine how much time it would take for the motor to accelerate to the rated speed, as well as the rotor actual speed after the refurbishment.
(b) You are part of a team trying to restore a historic electric locomotive, which is driven by a large induction motor. During the restoration process, the induction motor was refurbished and, due to its age, its rated torque has been reduced to half of its initial rated torque. Before refurbishment, you tried to test it, and applied a mechanical load with inertia JL = 600 kg.m? You measured the inertia of the motor's own rotor, and found it to be JM = 1,500 kg-m? The motor managed to accelerate to 906 rpm within 50 seconds. The synchronous speed is 960 rpm. Determine how much time it would take for the motor to accelerate to the rated speed, as well as the rotor actual speed after the refurbishment.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!