Cogging is the resistance of the Smart Drive rotor to turn freely from the stationary position. This means that to start turning you may need a wind speed of about 30km/h (10m/s). To achieve a good starting at low speeds the stator must be decogged. This operation should lower the starting wind speed down to 5m/s or less, depending of size and torque of the rotor.
The picture shows decogging operation in a F & P stator.
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See also this link: Fisher and Paykel washing machine motors
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