Induction Motor in Electrical drive system at a accelleration speed for example in electric cars have a hard speed setting is set on a wide range. causing an inconvenience for motorists and a fast response is required any change of speed. It is necessary for good system performance in control motor speed and torque at low speed or fast speed response. which is operated by Indirect Fie... https://pipingrockers.shop/product-category/zeolite/