The electric motor uses a stator winding to generate a rotating magnetic field and acts on the rotor to form a magnetoelectric rotational torque to convert electrical energy into mechanical energy. The motor is mainly composed of a stator and a rotor, and the direction of the force-carrying wire in the magnetic field is related to the direction of the current and the direction of the magnetic induction line. The working principle of the motor is that the magnetic field acts on the current to force the motor to rotate. But how many starting methods does the motor have? Dalan Motor tells you how to start the motor: full pressure direct start, auto-decompression start, star-delta start, soft starter and inverter. 1. Full-voltage direct start 1 In the case where both full-voltage direct start is allowed in both the grid capacity and the load, full-voltage direct start can be considered. 2 advantages are easy to control, easy to maintain, and more economical. 3 Mainly used for the starting of small power motors. From the perspective of saving electric energy, this method should not be used for motors larger than 11kw. 2, auto-decompression and decompression start 1 using the multi-tap decompression of the autotransformer, can not only meet the needs of different load starting, but also get a larger starting torque, is often used to start a larger capacity motor Decompression starting method. 2 Its biggest advantage is that the starting torque is large. When its winding tap is at 80%, the starting torque can reach 64% of the direct starting. And the starting torque can be adjusted by tapping. 3. Star-delta starter 1 For a squirrel-cage asynchronous motor in which the stator winding with normal operation is delta-connected, if the stator winding is connected to a star at the time of starting, it can be lowered after starting to be connected to a triangle. Current, reducing its impact on the grid. 2 When starting with the star-delta, the starting current is only 1/3 of the original starting directly by the delta connection. If the starting current at the time of direct start is 6 to 7 times, the starting current is only 2 to 2.3 times when the star-delta is started. This means that when starting with the star-delta, the starting torque is also reduced to 1/3 of the original starting directly by the delta connection. 3 Suitable for occasions with no load or light load start. And compared to any other decompression starter, its structure is the simplest. There is also an advantage in the 4-star triangle starting method, that is, when the load is light, the motor can be operated under the star connection method. At this time, the rated torque can be matched with the load, which can improve the efficiency of the motor and save power consumption. 4. The soft starter 1 utilizes the phase shift voltage regulation principle of the thyristor to realize the voltage regulation start of the motor, and is mainly used for starting control of the motor, and the starting effect is good but the cost is high. 2 Grid fluctuations can also affect the conduction of thyristor components, especially when there are multiple thyristors in the same grid. Therefore, the failure rate of the thyristor component is high, and since the power electronics technology is involved, the requirements for the maintenance technician are also high. 5. Inverter 1 Inverter is the motor control device with the highest technical content, the most complete control function and the best control effect in the field of modern motor control. It adjusts the speed and torque of the motor by changing the frequency of the power grid. 2 Because it involves power electronics technology and microcomputer technology, it is costly and has high requirements for maintenance technicians. Therefore, it is mainly used in areas where speed regulation is required and speed control is required. ----- Responsible Editor: Dalan Oil Pump Motor 02- Purchasing Consultant Copyright http:/(Dalan Motor) Reprint, please indicate the source http://news.chinawj.com.cn The PHROXI Metal handle kitchen faucet have Stainless steel spring.For cleanup and prep, the Kitchen Faucet moves with you, thanks to its flexible coil feature and pull-down spray. Kitchen Faucet,Kitchen Taps,Kitchen Faucets,Kitchen Sink Faucets HESHAN CAIZUN SANITRAYWARE CO.,LTD , https://www.caizunbathroom.com