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Over-excitation is used to achieve a faster response time. It’s when a coil momentarily receives a higher voltage then its nominal rating. To be effective the over excitation voltage must be significantly, but not to the point of diminishing returns, higher than the normal coil voltage. Three times the voltage typically gives around 1/3 faster [...]

Burnishing can affect initial torque of a clutch but there are also factors that affect the torque performance of a clutch in an application. The main one is voltage/current. In the voltage/current section it was shown why a constant current supply is important to get full torque out of a clutch.
When considering torque, is dynamic [...]