In steady state and regenerative mode the motor is in hypersynchrone so the energy is sent back to the main, no problems.
The problem can be if you have a low current (close to the PHF threshold) and during the transition between motor/generator state then the residual current can be only the magnetizing current and decrease under the PHF threshold.
No energy is transferred during deceleration.
Only a little during deceleration in dynamic braking stop mode but do not take into account because it is very low level of energy.
The problem can be if you have a low current (close to the PHF threshold) and during the transition between motor/generator state then the residual current can be only the magnetizing current and decrease under the PHF threshold.
No energy is transferred during deceleration.
Only a little during deceleration in dynamic braking stop mode but do not take into account because it is very low level of energy.
Released for:Schneider Electric India
