10HP Three Phase Motor
What is a 10HP Three Phase Motor?
The 10HP three-phase motor (rated power 7.5KW) is a core high-power motor model in industrial applications and a benchmark power configuration for the transition from small and medium-sized equipment to heavy-duty industrial equipment. It strictly adheres to the IEC 60034 international motor standard and GB national industrial manufacturing specifications. With its ample power reserve, strong resistance to load impact, and stable 24-hour continuous operation, this model is widely used in high-load scenarios such as heavy-duty mass production lines, hydraulic power systems, large fluid equipment, mining auxiliary machinery, and complete sets of chemical equipment.
This 7.5KW three-phase motor features a 132M professional heavy-duty frame, a thickened cast iron shell, industrial-grade thickened pure copper windings, F-class insulation, IP55 protection rating, supports 50Hz/60Hz global dual-frequency switching, and is compatible with the full range of international industrial voltages from 380V to 690V.
- With its exceptionally high torque reserve, this machine ensures smooth, heavy-load starts without any jamming. The starting torque is up to 2.6 times the rated torque, with a rated torque of 68.5 N·m. Its power reserve far exceeds that of models with 7.5 HP or less, easily handling demanding conditions such as static heavy-load starts, uneven material impacts, and sudden load surges in heavy industrial equipment. For heavy-load starting scenarios in hydraulic, crushing, and mixing equipment, it can start smoothly without no-load buffering, eliminating jamming, stalling, and tripping malfunctions, significantly improving equipment starting stability.
- Wide Range of Operating Conditions Adaptable, Catering to Complex Production Scenarios (Light and Heavy Loads)
This 10HP 7.5KW motor differs from small-power motors, which are only suitable for light loads, and pure heavy-load motors, which are limited to single heavy-duty scenarios. It boasts full compatibility across light and heavy load ranges, flexibly adapting to complex operating conditions such as intermittent light-load processing, normal full-load production, and instantaneous heavy-load impacts. Addressing the needs of factories with multiple devices and varying loads on a single production line, it eliminates the need for frequent power model changes. It features low no-load operating losses and strong full-load output stability, perfectly adapting to diverse mass production lines. Its adaptability far surpasses that of comparable small and medium-power motors.
- Integrated precision casting ensures a more durable, fatigue-resistant structure. Utilizing a 132M integrated precision casting process, the machine body has no seams and exhibits uniform stress distribution. Compared to ordinary split-cast motors, this significantly improves the machine's resistance to deformation, fatigue, and resonance. Designed for the fatigue conditions of high-frequency start-stop operations, continuous vibration, and alternating loads in production lines, long-term operation will not result in base cracking, shaft misalignment, or loose screws. The overall structural stability is enhanced, effectively reducing equipment downtime and making it suitable for long-term industrial fatigue operations.
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Model |
10HP Three phase motor |
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Frame |
132 |
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Power |
10 Horse power 7.5KW |
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Speed |
3000rpm, 1500rpm, 1000rpm |
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Voltage |
380/400V, 400/690V or customization |
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Frequency |
50HZ/60HZ |
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Efficiency |
IE1, IE2, IE3, IE4 |
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Motor shaft diameter |
Φ38 |
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Cooling |
Fan |
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Protection |
IP44/IP54/IP55 |
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Housing |
Aluminum/Cast Iron |
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Ambient temperature |
-15℃≤0℃≤40℃ |
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Altitude |
No exceeding 1000 meters |
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Duty |
S1 |
Installation position
Q: How to select the appropriate inverter power for a 10HP motor?
A: For normal light-load, constant-speed operation, a 7.5KW standard inverter is suitable. For heavy-load starts, frequent speed adjustments, and 24-hour continuous operation, it is recommended to select an 11KW inverter (one level higher). This provides sufficient power margin and effectively avoids problems such as inverter overload alarms, excessive low-speed temperature rise, and insufficient output torque, resulting in more stable speed control system operation and a longer lifespan.
Q: What is the normal temperature rise range for a 10HP motor under long-term full-load operation?
A: This F-class insulated 10HP heavy-duty motor meets national standards for a temperature rise of ≤80K. During 24 hours of continuous full-load operation, the stable temperature rise of the motor body is controlled below 60K, which is within the excellent standard range. Under normal operating conditions, the motor body should be slightly warm to the touch, without any scalding, odor, or frequent tripping. Excellent heat dissipation and winding technology ensure that the motor maintains a stable low temperature rise even under long-term full-load fatigue operation.
Q: What is the necessity of using star-delta starting for a 10HP high-power motor?
A: A 7.5KW motor is considered a high-power industrial motor. Its direct starting current can reach 6-7 times the rated current, easily causing voltage fluctuations in the power grid and impacting electrical components. Installing a star-delta starting device can smoothly reduce the starting current, achieving a reduced-voltage soft start. This effectively protects the motor windings, contactors, frequency converters, and other related electrical components, stabilizing the workshop power grid. It is highly suitable for the routine start-stop operation of mass-production equipment in factories.
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