Question:
Kramer system for controlling the speed of a 3-phase induction motor is mostly used for motors of:
Kramer system for controlling the speed of a 3-phase induction motor is mostly used for motors of:
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The Kramer system is generally used for controlling the speed of high-power 3-phase induction motors, typically above 4000 kW.
Updated On: May 4, 2025
- Above 4000 kW
- Below 4000 kW
- Below 3000 kW
- Above 1000 kW and below 2000 kW
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The Correct Option is A
Solution and Explanation
The Kramer system is used for controlling the speed of large 3-phase induction motors, typically those with a power rating of above 4000 kW. This system is used to control the motor's speed by varying the supply voltage, which is most effective for large motors.
Thus, the Kramer system is mainly used for motors with power ratings above 4000 kW.
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