Squirrel-cage three-phase asynchronous motor in the widely used now. This kind of motor in the design process focuses on at work can not only realize good use of intelligent control, and in the process of use and not due to the use of a lot of power to grid used in daily life, work, a certain power impact. The squirrel-cage three-phase asynchronous motor in use process, by the use of gf in use process is usually via step-down start to start the motor, now use the step-down start there are two main ways, one is step-down motion, while another is called soft start. Soft start is also called electronic soft start, the startup mode generally adopts 16-bit single chip microcomputer to be responsible for rotor and stator the control of the motor, through the intelligent control system, the motor at work can ensure that the motor in the load it can achieve a smooth start, still can reduce because click use too much power and cause certain impact to the grid. Including the squirrel-cage three-phase asynchronous motor in before and now, the grid has always maintained a in the process of running with the characteristics of volatility, often at the time of peak electricity consumption, electricity in use process found obvious battery is low, but in the case of electricity consumption is very low, there will be a power's use of power is very high. In order to some of the production process can fully more rational use of electricity, people invented the electric motor electronic soft starter, this product motor fan with this product, the squirrel-cage motor is applied. The squirrel-cage motor such as the electromagnetic brake is also need in step-down startup conditions. In the process of this kind of motor start, machine can't work under full pressure start mode, and when it starts, terminal voltage can't realize the characteristics of the specification requirements.
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