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The slot pitch for low voltage machines typically varies depending on the specific design and application of the machine. However, for many low voltage (up to 690V), three-phase induction motors, the slot pitch is often in the range of 20mm to 60mm. This range can vary based on factors such as the size of the motor, the number of poles, and the specific design considerations of the manufacturer. It’s worth noting that the slot pitch, which is the distance between the centers of adjacent slots in the stator of an electric motor, is pivotal for ensuring efficient magnetic coupling between the stator and the rotor.
Answer: c
Explanation: The value of the slot pitch depends upon the voltage of the machine. The slot pitch is less than equal to 25 mm for low voltage machines.