Product Specification
|
Model |
E362830 |
Heat-resistant temperature |
150-200℃ |
||
|
Rated voltage |
28V |
Rated RPM |
4900 |
Rated torque |
0.07Nm |
|
Rated current |
1.8A |
No-load RPM |
5400 |
Rated efficiency |
74% |
|
No-load current |
0.4A |
Rated power |
35.9W |
Interphase resistance |
1.113Ω |
Characteristic
- High reliability, maintenance free design
Adapted to harsh downhole environments (high humidity, dust), long maintenance cycles, and reduced downtime costs.
- Efficient and energy-saving, adaptable to downhole power supply limitations
Adopting electronic commutation technology, brushless design reduces energy loss, and efficiency can reach over 90%.
Significantly reduce underground power consumption, extend the battery or limited power grid's endurance time, suitable for long-term continuous operation.
- The core part is hand-made to ensure high slot filling rate and make the motor performance more stable
- High temperature resistance, up to 200℃ downhole adaptability
- Resistant to drilling vibration 30g5-200Hz, the impact resistance can reach 147g11ms
Application
Adopting PID closed-loop control
Support adding pump combination control
Downhole DC brushless motor is used in intelligent downhole tools for petroleum, for example, drilling rigs that require dynamic load adjustment, micro electronic hydraulic power systems and robots etc..
HELI continuously promote the innovation of downhole DC brushless motor technology based on our profound industry technology and experience accumulation.
We have established a complete independent intellectual property system, with several invention patents and core technologies covering key areas such as high power density design and low-noise optimization.
The R&D team adopts a forward development process, combined with simulation and experimental design, to accurately optimize the electromagnetic, structural, and control parameters of the motor.
Our motors have improved the efficiency of intelligent downhole tools for customers in the petroleum industry.
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FAQ
Q: What is the voltage range of your motor?
A: 12V-450V
Q: What is the size range of your motor?
A: At present, our standard outer diameter is 20mm-130mm, but we can customize motor according to client needs.
Q: Has your motor been put into use?
A: Yes, of course, our own intelligent downhole tools are using our self-produced DC motors, and our customer base is also constantly expanding
Q: How long is the warranty time?
A: One year or 1000 hours of downhole work
Q: How do I know if my brushless motor is bad?
A: Check for short circuits between the stator and the windings. Look for any connection between the windings and the motor stator laminations. You will need to find bare metal on the stator for one connection to the meter and on the meter windings for the other.
Q: What happens when a DC motor is overloaded?
A: The main issue with excess current is that it creates heat which degrades the insulation surrounding the conductors that creates stator magnetic field. Continued degradation of the winding insulation results in failure of the insulation and eventual motor failure
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