75kW Motor
What is a 75kW Motor?
The 75kW three-phase asynchronous motor serves as a core power unit for heavy-duty industrial applications. Developed and manufactured in strict accordance with IEC international standards and domestic GB standards, it is a high-efficiency, low-voltage, Totally Enclosed Fan-Cooled (TEFC) motor. Featuring pure copper windings, a cast-iron housing, and precision low-noise bearings, this motor offers five key advantages: high efficiency, low energy loss, high overload capacity, resistance to temperature extremes, and stable operation. Designed for standard 380V/50Hz industrial power supplies, it supports continuous (S1 duty) operation and is ideally suited for various heavy-duty industrial drive systems, making it a primary choice for sectors such as mining, chemicals, building materials, metallurgy, and general machinery.
Models
Features
- Thickened cast-iron housing for rugged durability: The unit features a high-strength cast-iron casing that offers superior rigidity and resistance to vibration and impact. Designed to withstand the harsh, demanding conditions of mining sites and construction zones, it eliminates issues such as housing deformation or cracking, delivering a level of durability far exceeding that of motors with standard stamped-metal housings.
- Upgraded insulation system for safety and stability: Features Class F insulation, offering high-temperature resistance, dielectric strength, and aging resistance. It ensures stable insulation performance and reliable operation across a wide temperature range of -20°C to +50°C. Designed for standard industrial conditions at altitudes up to 1,000 meters, it effectively prevents high-voltage breakdown, leakage, and equipment burnout, significantly enhancing operational safety.
- Fully enclosed TEFC protection (dustproof and waterproof): Featuring a fully enclosed, self-fan-cooled design with an IP54 protection rating, it effectively prevents the ingress of dust, moisture, and particulates. It is suitable for industrial environments characterized by heavy dust, high humidity, and oily conditions, eliminating issues such as internal dust accumulation and moisture-induced short circuits, thereby reducing the likelihood of downtime due to failure.
Products Description
|
Model |
Y2 Series 75kW Motor |
|
Frame |
280 |
|
Power |
75kW |
|
Speed |
3000rpm, 1500rpm, 1000rpm |
|
Voltage |
380/660V, 400/690V, or customization |
|
Frequency |
50HZ/60HZ |
|
Efficiency |
IE1, IE2, IE3, IE4 |
|
Motor shaft diameter |
Φ65/75 |
|
Cooling |
Fan |
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Protection |
IP44/IP54/IP55 |
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Housing |
Aluminum/Cast Iron |
|
Ambient temperature |
-15℃≤0℃≤40℃ |
|
Altitude |
No exceeding 1000 meters |
|
Duty |
S1 |
Drawings
Installation position
Our advantages
Production
Application
Renowned for stable heavy-load performance, the 75kW three-phase motor is widely used in diverse industrial production settings and is compatible with the vast majority of medium-to-large drive equipment:
- HVAC Industry: Powers large industrial fans, induced-draft fans, exhaust fans, and cooling tower fans, ensuring stable air pressure and controllable energy consumption.
- Mining & Building Materials Industries: Provides heavy-duty power for crushers, ball mills, screening equipment, and mining conveyors; features vibration and wear resistance, making it suitable for harsh operating environments.
- Export & Engineering Projects: Compatible with overseas voltage standards (380V/415V) and compliant with IEC international certifications; widely exported to markets in Southeast Asia, Africa, the Middle East, and Europe.
Company Profile
FAQ
Q: Can a 75kW three-phase motor operate at full load for extended periods?
A: This motor is an industrial model designed for S1 continuous duty. Under standard operating conditions-with adequate ventilation and stable voltage-it can run continuously at full load 24 hours a day, meeting the demands of routine industrial production.
Q: What are the differences between 75kW motors with different numbers of poles, and how should one be selected?
A: The number of poles determines rotational speed and torque. 2-pole motors offer the highest speed but lower torque, making them suitable for fans and high-speed equipment. 4-pole and 6-pole motors provide moderate speed and balanced torque, making them the preferred choice for general applications. 8-pole motors feature low speed and high torque, suitable for heavy-duty, low-speed equipment such as crushers and mills. Selection should be based on the specific speed requirements of the equipment.
Q: Is it normal for the motor to generate significant heat during operation?
A: Slight heating under rated load is normal, as Class F insulation is designed to withstand high operating temperatures. However, if there is a rapid rise in temperature, the casing becomes too hot to touch, or issues such as abnormal noise or smoke occur, the motor should be shut down immediately to inspect the voltage, load, and cooling system in order to prevent equipment damage.
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