What are some requirements for a wound rotor induction motor speed control circuit?
What will be an ideal response?
The requirements for a wound rotor induction motor speed control circuit include:
1. The motor is to operate on a 480-volt three-phase power system, but the control system is to operate on 120 volts.
2. One stop button can stop the motor regardless of which speed has been selected.
3. The motor will have overload protection.
4. Three separate push buttons will select first, second, or third speed.
5. There will be a three-second time delay between accelerating from one speed to another.
6. If the motor is in operation and a higher speed is desired, it can be obtained by pushing the proper button. If the motor is operating and a lower speed is desired, the stop button must be pressed first.
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A. float B. displacement C. purge
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