Star triangle start-up needs to meet the requirements of a three-phase asynchronous motor380V/ΔWiring conditions, when the motor is in normal operation, the stator winding is connected into a triangle to use the star triangle starting method, the star triangle starting is a step-down starting, which is achieved by reducing the starting current at the cost of sacrificing power, so it can not be generalizedThree-phase induction motorThe size of the power to determine whether to use the star triangle start, but also depends on what kind of load.

       ①For normal operation the stator windings are triangular connectedSquirrel cage asynchronous motorFor example, if the stator winding is connected into a star shape when starting, and then into a triangle after starting, it can reduce the starting current and reduce its impact on the power grid.

       ②When the star triangle is used to start, the starting current is only that of the original triangle connection1/3. If the starting current is directly started6～7When the star triangle is started, the starting current is only2～2.3 Times. This means that when the star triangle is used to start, the starting torque is also reduced to the original when the triangle connection is directly started1/3.

       ③Suitable for no-load or light load starting occasions. And compared with any other vacuum starter, its structure is very simple.

       ④The star triangle starting mode also has the advantage that when the load is light, the motor can be run under the star connection. At this time, the rated torque can be matched with the load, which can improve the efficiency of the motor and thus save power consumption.

       The above content is composed ofThree-phase asynchronous motor manufacturers,Mori machineProvided. Available if needed1688Search "Shengzhou Chaoli Electric Appliance Factory", or contact us directly0575-8378-1127.