The Submersible Permanent Magnet Motor (SPMM) is a high-performance, energy-efficient motor designed for driving Electrical Submersible Pumps (ESP) in oilfield applications. It serves as the power input device for submersible pumping systems, converting electrical energy into mechanical energy to drive the multi-stage centrifugal pump, lifting well fluids to the surface.
The SPMM utilizes samarium cobalt permanent magnet material, which offers high resistance to corrosion and oxidation, ensuring long-term operation in high-temperature environments up to 180°C without demagnetization. The motor operates at 2850 r/min @ 50Hz and 3420 r/min @ 60Hz, ensuring optimal efficiency and performance across various well conditions.
✅ High-Temperature Resistance – Uses samarium cobalt permanent magnets for long-term stability at temperatures up to 180°C.
✅ High Efficiency & Power Factor – The synchronous operation of the stator and rotor eliminates rotor resistance and hysteresis losses, enhancing efficiency.
✅ Compact & Lightweight – Reduced size and weight compared to traditional asynchronous motors, simplifying transportation and installation.
✅ High Power Density – Provides 1.5 times the power density of standard three-phase asynchronous motors, allowing shorter motor designs for improved adaptability in deviated and deep wells.
✅ Energy-Saving Performance – Power savings of more than 25%, improving overall system efficiency.
✅ Improved Power Quality – No rotor excitation, reducing electrical losses and improving power factor.
🔹 Electrical Submersible Pump (ESP) Systems – Powering multi-stage centrifugal pumps for oil production.
🔹 High-Temperature Wells – Designed for continuous operation in well conditions up to 180°C.
🔹 Deep & Deviated Wells – High power density allows for shorter motor length, making it ideal for directional wells.
🔹 Energy-Efficient Production – Suitable for oilfields looking to reduce power consumption and enhance efficiency.
🔹 Corrosive & Harsh Environments – Withstands oxidation, corrosion, and extreme downhole conditions.
Submersible Permanent Magnet Motor Power Ranges
Submersible Permanent Magnet Motor Power Ranges
| Series |
O.D (mm/in) |
Poles |
Power Range (kW@100Hz) |
Power Range (HP@120Hz) |
| 89 | 89 (3.50) | 4 | 25-125 | 40-200 |
| 107 | 107 (4.21) | 4 | 10-200 | 16-322 |
| 114 | 114 (4.49) | 4 | 25-260 | 40-418 |
| 116 | 116 (4.56) | 4 | 11-200 | 18-322 |
| 138 | 138 (5.40) | 4 | 25-400 | 40-644 |
| 143 | 143 (5.62) | 4 | 55-600 | 88-966 |
