Large motor with high starting torque and low breakaway starting current properties and small power grid impact

• Main Authors: ZHANG BAIDI, LI ZONGSHU, LI JUN, LIU FUCHUANG, WANG PENG, WANG XIAOWEN, YIN ZUQIANG, CUI LIJIA, CHEN XINGWEI
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2013
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The utility model relates to a large motor with high starting torque and low breakaway starting current properties and small power grid impact. The large motor with the high starting torque and the low breakaway starting current properties and the small power grid impact is formed by a rotor punching plate, special-shaped grooves and copper bars. A plurality of special-shaped grooves are evenly distributed on the circumference of the rotor punching plate. Each special-shaped groove is provided with the copper bar. Each copper bar is made of silicon copper. The large motor with the high starting torque and the low breakaway starting current properties and the small power grid impact is simple in structure and reasonable in design. Due to the fact that the plurality of special-shaped grooves are evenly distributed on the rotor punching plate and each special-shaped groove is provided with the copper bar, total impedance of the motor is increased, the breakaway starting current is reduced, the high starting torq