A motor of Zhonghai City completed the 5500KW motor rotor overhaul mission

Recently, a motor of Zhonghai Industrial City undertook a YX5500-4 /1270 5500KW motor rotor transformation task. After inspection and analysis, the rotor of the motor is broken due to materials, frequent starting and the like. After passing a technical conference, the company decided to determine the following options: the aluminum strip was transformed into a copper strip, the end rings were replaced, and the cage strip and the end ring were silver welded.

Due to the different materials of aluminum and copper, the density and characteristics of the materials are different, the dimensions of the cages and end rings must be different. The city's motor technicians redesign the copper bars and end rings under the premise of ensuring the strength through accurate measurement and strict calculation. Dimensions; wedges are arranged in the slots, and the copper bars and end rings are connected by silver soldering. Construction workers and technicians worked overtime to speed up the progress under the premise of ensuring quality, which was successfully completed this week.