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The submersible motor is the power source of the intelligent oil production system of the electric submersible screw pump. It is a three-phase AC permanent magnet synchronous motor, which realizes the design optimization of low-speed high torque electromagnetic scheme and improves the efficiency by 20-30% compared to the submersible asynchronous motor. Our company has developed a multi-stage straightening structure and oil circulation system for the rotor of the submersible motor, ensuring the uniformity of the magnetic gap and the lubrication and heat dissipation of the bearings, preventing the stator and rotor of the ultra long diameter ratio motor from getting stuck, improving work stability, and extending service life.

Technical performance

The instantaneous overload capacity of the submersible motor is ≥ 1.3 times the rated torque;

The power line outlet connector of the submersible motor is a plug-in connector;

The bottom and top of the submersible motor are connected by flanges;

Under a pressure of 0.9MPa, maintain for 5 minutes and ensure that there is no leakage at the sealed connection parts of the motor;

The DC resistance imbalance rate of the stator three-phase winding of the submersible motor should be ≤ 2%;

The insulation resistance of the submersible motor is ≥ 1000M Ω;

After the load test of the submersible motor, the motor oil can withstand 10kV/2.5mm AC voltage;

Technical Parameter