HV Squirrel Cage Air cooling induction motor
- Product Description
HV Squirrel Cage Air Cooling Induction Motor
When your facility needs to send high-voltage power reliably, our HV Squirrel Cage Air cooling induction motor works very well in even the toughest industrial settings. These motors are made by Tellhow Shenyang Electric Machine Co., Ltd. and have shaft heights between 355 mm and 1250 mm and power rates between 200 kW and 30,000 kW. Through advanced electromagnetic design and precision engineering, you'll be able to cut your energy use by 15–20%. Our motors are reliable and serve the power production, metals, mining, and petroleum industries. They have over 2,100 specs spread across 49 types.
Why Choose Our High-Voltage Air-Cooled Motors?
Superior Engineering Design
For your operations to run smoothly, you need equipment that works perfectly in tough circumstances. Finite element analysis is used in the planning part of our motors. This guarantees precise power delivery, very little shaking, and very little noise.
You can count on the structural stability of the box-type welding steel frame. With good cooling ducts, this design keeps the right working temperatures even when it's running at full speed all the time.
Advanced Cooling Technology
The air cooling systems in these high-voltage motors are good for your building in a number of ways:
- Effective cooling by using the right wind patterns
- Maintenance is less than with liquid cooling systems
- Less complicated installations and lower costs
- Dependable performance in a range of environmental situations
The design of the cooling system keeps the temperature from rising too much during high-speed activity. This makes the parts last longer and keeps their performance level over years of use.
Robust Construction Quality
Every part has been carefully thought out, and you'll appreciate it:
Precision rolling or sliding bearings can handle both radial and axial loads with little friction loss.
Insulation: Vacuum Pressure Impregnation (VPI) stator insulation keeps electricity from leaking and does a great job of transferring heat.
Design of the Rotor: The squirrel cage design gets rid of brushes and slip rings, which makes upkeep a lot easier.

Technical Specifications
Our HV Squirrel Cage Air cooling induction motor range offers flexibility to match your specific requirements:
| Parameter | Specification Range |
|---|---|
| Power Output | 200 kW – 30,000 kW |
| Shaft Height | 355 mm – 1250 mm |
| Voltage Class | High Voltage (custom configurations available) |
| Efficiency Class | IE2, IE3, IE4 (per IEC 60034-30-1) |
| Insulation Class | Class F or H |
| Protection Rating | Minimum IP55 |
| Cooling Method | IC411 / IC416 (air cooling) |
| Rotor Type | Squirrel cage (cast aluminum or copper) |
| Temperature Rise | Class B rise with higher insulation class |
| Ambient Conditions | -15°C to +40°C (custom ranges available) |
Environmental Protection Options
We understand your facility may face challenging environmental conditions:
| Code | Description | Application |
|---|---|---|
| W | Outdoor light corrosion resistant | Moderate outdoor exposure |
| WF1 | Outdoor medium corrosion resistant | Coastal or industrial areas |
| WF2 | Outdoor heavy corrosion resistant | Chemical plants, marine environments |
| F | Indoor corrosion resistant | Controlled indoor environments |
| F1 | Indoor medium corrosion resistant | Manufacturing facilities |
| F2 | Indoor heavy corrosion resistant | Aggressive chemical atmospheres |
| TH | Humid tropics indoor | High humidity indoor locations |
| THW | Humid tropics outdoor | Outdoor tropical climates |
| TA | Dry tropics indoor | Hot, dry indoor environments |
| TAW | Dry tropics outdoor | Desert or arid outdoor locations |
Key Performance Advantages
Energy Efficiency That Reduces Operating Costs
Our cutting-edge magnetic circuit design helps your bottom line. Eddy current losses are kept to a minimum by high-grade silicon steel laminations. As a result? When compared to regular motors, they will use 15–20% less energy.
When the unit is fully loaded, it draws less reactive power from the power grid because it has a high power factor. This means lower energy bills and a more efficient system as a whole.
Intelligent Features for Modern Operations
These motors work perfectly with the control methods you already have:
- Wide range of power and frequency options for stable operation
- Quick reaction time for power for tough process needs
- Compatibility with multidimensional monitoring
- Low-noise design for better work settings
Self-Starting Capability
You don't need complicated starting gear or extra windings. The squirrel cage shape allows for direct-on-line starting. This makes your electricity equipment easier to use and lowers the cost of the original investment.
Application Industries
It's possible that your business has its own problems. Our motors are great in a number of areas:
Power Generation: Turbine and pump extra drive methods that work well
Metallurgy: Rolling mills and conveyors must be able to work continuously in high-temperature areas
In mining, tough building is used for tasks like breaking, grinding, and ventilation.
Petrochemical: Pumps, compressors, and fans that won't rust are available
Treatment of Water: Pumping stations and aeration devices that can be relied on
Durable performance in cement, grinding, and moving materials in construction materials

Customization Capabilities
Every facility has unique requirements. Our ODM/OEM services provide:
- Customized power and speed configurations matched to your load profile
- Insulation class optimization for your operating environment
- Structural modifications for space-constrained installations
- Special shaft extensions or mounting arrangements
- Custom voltage and frequency specifications
- Small-batch production for specialized projects
This flexibility ensures you get exactly what your application demands.
Quality Standards and Certifications
You need confidence in equipment reliability. Our HV Squirrel Cage Air cooling induction motor comply with stringent international standards:
- CE – European safety and environmental requirements
- CCC – China Compulsory Certification
- IEC 60034 – International motor performance standards
- NEMA MG1 – North American motor standards
- Multiple energy-efficiency certifications
These certifications demonstrate our commitment to quality and global best practices.
Long-Term Value Proposition
Investing in quality high-voltage motors pays dividends over their operational life:
Lower Total Cost of Ownership: Reduced energy consumption and minimal maintenance requirements mean significant savings over 15-20 year service lives.
Operational Reliability: Proven designs and quality manufacturing minimize unexpected downtime that disrupts your production schedules.
System Integration: Standard dimensions and mounting configurations simplify installation and future replacements.
Future-Proof Design: Compatible with modern control systems and Industry 4.0 monitoring equipment.
Global Manufacturing Excellence
Tellhow Shenyang Electric Machine Co., Ltd. operates from a 190,000-square-meter manufacturing facility with 8 million kW total production capacity. Our 500 million RMB registered capital demonstrates financial stability and long-term commitment to the industry.
We combine traditional manufacturing expertise with intelligent production methods. Advanced quality control at every production stage ensures consistent performance you can depend on.

Frequently Asked Questions
Q: What maintenance schedule do you recommend for air-cooled high-voltage motors?
A: You should inspect cooling air passages quarterly to ensure unrestricted airflow. Check bearing lubrication every 2,000-3,000 operating hours depending on load conditions. Annual insulation resistance testing helps identify potential issues before they cause failures. The product design minimizes maintenance needs compared to other motor types.
Q: Can these motors operate at variable speeds?
A: Yes, but you'll need appropriate VFD equipment rated for high-voltage applications. For variable speed operation, we recommend motors with reinforced insulation systems to handle voltage spikes. Distances exceeding 50 meters between motor and VFD require dv/dt filters to prevent reflected wave overvoltage. Our engineering team can specify the correct configuration for your variable speed needs.
Q: How do you prevent bearing damage from shaft currents in high-voltage applications?
A: We install insulated bearings on the non-drive end as standard for motors above certain voltage thresholds. Shaft grounding rings provide additional protection by diverting capacitive currents safely to ground. This prevents electrical erosion of bearing surfaces that can lead to premature failure.
Q: What determines the appropriate cooling air volume?
A: Your motor's power output, ambient temperature, and altitude affect cooling requirements. Our motors use optimized fan designs that provide adequate airflow across the rated operating range. For installations above 1,000 meters elevation or ambient temperatures exceeding 40°C, we'll adjust cooling specifications accordingly.
Q: Do you provide spare parts and technical support after installation?
A: Absolutely. Our global service network ensures timely access to genuine spare parts. You'll receive professional technical consultation throughout your motor's lifecycle. We maintain comprehensive documentation for every motor produced, making future service straightforward and efficient.
Contact Us
Email us at sxmotor@yeah.net to discuss your specific requirements for HV Squirrel Cage Air cooling induction motor.












