◆ The rotor is made of permanent magnet material, which has strong corrosion resistance and oxidation resistance. The maximum operating temperature can reach 350℃. It will not demagnetize in a long-term working environment of 204℃, and has high temperature and chemical stability.

◆ Since the permanent magnet motor reduces the rotor copper loss, the motor heat source is reduced, and the operating temperature rise is generally 10℃ lower than the standard induction motor, which effectively delays the aging of the motor.

◆ The stator and rotor magnetic fields of the permanent magnet motor run synchronously, the rotor has no induced current, and there is no rotor resistance and hysteresis loss, which effectively improves the motor efficiency and power factor, reduces the motor running current, and thus reduces the cable voltage drop, loss and temperature rise. Its comprehensive power saving rate is about 25%.

◆ The application of high-performance permanent magnet materials has greatly reduced the size and weight of the permanent magnet motor; the length of the motor with the same power is 1/3 of that of the standard induction motor; through computer simulation and optimization of the magnetic circuit design, the motor power per unit volume is greatly increased, the motor length is greatly shortened, the installation time is shortened, and the passability in inclined and horizontal wells is improved.

◆ The motor torque pulsation is only 1.4%, which is much lower than the 5% of conventional motors, and has little effect on the associated vibration of the pump and protector.

◆ The no-load current is less than 10% of the rated current, which is convenient for determining the unit status under low load, such as gas lock, etc.