eli5: how does EMD or GE diesel locomotive Dynamic Braking actually function?
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Any motor functions as a generator when turned from the opposite direction. Dynamic braking is essentially removing the power input to the motor. If it takes 1 watt to run a motor at 1 rpm, then a force upon said motor from the output shaft at 1 rpm will make 1 watt of power. Since energy cannot come from nowhere, turning the output shafts of the motor takes energy away from the locomotive which results in deceleration or braking.
Any motor functions as a generator when turned from the opposite direction. Dynamic braking is essentially removing the power input to the motor. If it takes 1 watt to run a motor at 1 rpm, then a force upon said motor from the output shaft at 1 rpm will make 1 watt of power. Since energy cannot come from nowhere, turning the output shafts of the motor takes energy away from the locomotive which results in deceleration or braking.
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