High Torque Wound Rotor Induction Motor

High Torque Wound Rotor Induction Motor

Our High Torque Wound Rotor Induction Motor gives you the best starting performance for your heavy-duty industrial tasks. This motor, made by Tellhow Shenyang Electric Machine Co., Ltd., has a slip ring frame that was designed for uses that need up to 250% starting power. These motors are great for moving crushers, ball mills, and conveyors because they can produce 200 kW to 30,000 kW of power and have shaft heights ranging from 355 mm to 1250 mm. Built in our 190,000-square-meter factory that can make 8 million kW of power a year, each unit goes through a lot of tests to make sure it works well even when the voltage and load change a lot.

Why Choose Our Wound Rotor Motors?

Superior Starting Performance

A common problem you face is how to turn on big machines without putting too much strain on the power grid. When they first start up, traditional Squirrel Cage Motors draw too much power. Our folded rotor concept is a beautiful way to solve this problem.

The external resistance setting lets the speed go up smoothly. You get the force you need without putting stress on the grid. Even when big loads are turned on, your electricity system stays stable.

Built for Heavy Industrial Environments

Other motors fail where these do well. The strong steel frame design can handle years of constant use. Vibration levels stay below ISO 10816 guidelines, which makes sure that the machine is reliable.

The IP23 grade for security is good enough to keep out dust and water. Forced airflow keeps the temperature management at its best. Your machine keeps going when the output plan says it has to.

Precision Engineering Meets Flexibility

Vacuum Pressure Impregnation (VPI) is built into every motor to make sure the insulation stays strong. In tough situations, Class F or H insulation can handle temperature stress. The careful winding support keeps vibrations from wearing down the parts over long periods of service.

You gain from production methods that are very accurate. Correct balance and less wear are guaranteed by accurate measurements. When you put together something carefully, the bearings last longer and the machine runs more quietly.

Technical Specifications

Key Applications

Mining and Mineral Processing

To get past static friction, ball mills need a huge amount of starting power. Your grinding processes depend on motors that keep putting out the same amount of power even when the load changes. The slip ring design lets you precisely control the speed of the processes.

When handling rock, crushers have to deal with sudden bumps in load. Our motors can handle these shocks and keep running smoothly. You cut down on delays and boost productivity.

Cement Production

Heavy-duty drives that are stable are needed for rotary kilns and raw mills. The high inertia of these huge spinning units is handled by the wound rotor design. Your factory line keeps making the same amount of goods.

Conveyor systems move tons of stuff all the time. The ability to change speeds makes material move better. The amount of energy used goes down, and process control gets better.

Steel and Metallurgy

Rolling mills need careful control of the force. You can fine-tune the device by adjusting the resistance from the outside. Better process stability makes the quality of your output better.

Heavy-duty compressors and pumps work all the time in tough conditions. The strong structure can handle dust, heat, and vibrations. Over the life of the motor, your upkeep prices go down.

Advanced Features That Deliver Results

Intelligent Load Management

The shape of the spinning rotor easily adjusts to changes in load. The motor works easily when your process needs more power. Throughout the working range, energy efficiency stays at its best.

You get more power over the machines that work for you. Adjusting the speed without having to use complicated technology makes the fitting easier. There is more operational freedom without making the system more complicated.

Exceptional Thermal Performance

It can get rid of heat faster than most induction motors. The open aeration arrangement lets the most air flow around the windings. Tests of temperature rise show function at full load.

Your motor runs cooler, which makes the insulation last longer. Less temperature stress means that upkeep can be put off for longer amounts of time. With each placement, you get more work time.

Customization for Your Exact Needs

Every business use has its own set of problems. Because we can do ODM and OEM, you can get motors that are perfectly designed for your needs.

Need a certain power rating? We make changes as needed. Need certain fixing arrangements? Our engineers do a good job. Want speed levels that work best? We change the shape of the turning.

Small-batch production is used for specific tasks. For large sales, our yearly capacity of 8 million kW is helpful. No matter how big or small your order is, you get the same level of quality.

Quality You Can Verify

Comprehensive Testing Protocol

Each High Torque Wound Rotor Induction Motor undergoes extensive quality verification before shipment:

Electrical Testing: Insulation resistance, winding resistance, and dielectric strength tests confirm electrical integrity. Partial discharge measurements ensure long-term reliability under high voltage stress.

Mechanical Inspection: Vibration analysis identifies any imbalance issues. Bearing clearances meet precise specifications. Shaft alignment verification prevents premature wear.

Thermal Validation: Full-load temperature rise testing confirms cooling system effectiveness. Embedded thermal sensors verify that windings stay within safe operating limits.

Functional Verification: No-load and load tests demonstrate actual performance characteristics. Torque curves match design specifications. Speed regulation stays within acceptable ranges.

International Standards Compliance

Our manufacturing processes align with global quality frameworks. We hold certifications including CE, CCC, and comply with IEC 60034 standards. Your procurement department can verify regulatory compliance across different markets.

Installation and Maintenance Advantages

Straightforward Integration

The slip ring assembly provides clear access points for external resistor connections. Standard mounting dimensions simplify mechanical integration. Your installation team completes projects faster with fewer complications.

Cable sizing becomes more manageable. Lower starting currents mean smaller conductors. You reduce installation costs while maintaining safety margins.

Maintenance-Friendly Design

Carbon brush inspection takes minutes, not hours. The collector ring assembly allows quick visual checks. You schedule preventive maintenance without extended downtime.

Replacement parts availability ensures minimal inventory costs. Common components mean faster repairs when needed. Your maintenance team handles routine service with standard tools and procedures.

Your Partner for Heavy-Duty Drive Solutions

Tellhow Shenyang Electric Machine Co., Ltd. combines decades of motor manufacturing expertise with modern production capabilities. Our facility houses advanced testing equipment and quality control systems that ensure every High Torque Wound Rotor Induction Motor meets exacting standards.

We understand your operational challenges because we've solved them for customers across power generation, metallurgy, mining, petrochemicals, and construction materials industries. Our engineering team works with you to specify the optimal motor configuration for your application.

The philosophy of "National Tellhow, International Tellhow" drives our commitment to technological innovation. We invest continuously in manufacturing processes and quality systems. Your success depends on reliable equipment, and we deliver motors that perform year after year.

Frequently Asked Questions

Q: What makes a wound rotor motor better for high starting torque applications?

A: The slip ring design allows external resistance control during startup. This provides high torque with limited current draw—solving the two biggest challenges in heavy equipment starting. You get smooth acceleration without electrical system stress.

Q: How does this compare to variable frequency drive solutions?

A: VFDs offer precise control but add complexity and cost, especially at high voltage levels. Wound rotor motors provide similar starting benefits with simpler, more robust technology. For applications primarily needing controlled starting rather than continuous speed variation, the wound rotor approach often delivers better value.

Q: Can these motors operate in explosive atmospheres?

A: Standard models suit general industrial environments. For hazardous locations, we offer increased safety versions or pressurized enclosures. Contact our engineering team to discuss your specific safety requirements.

Q: What's the typical lifespan of these motors?

A: With proper maintenance, expect 20-25 years of service life. The robust steel construction and quality insulation systems ensure long-term reliability. Regular brush replacement and bearing maintenance maximize operational life.

Q: How long does custom configuration take?

A: Standard customizations (voltage, mounting, connection box position) add 2-3 weeks to production time. Complex modifications requiring design changes may need 6-8 weeks. Our team provides accurate timelines during the quotation process.

Q: What support do you provide for international installations?

A: We supply comprehensive documentation including installation manuals, wiring diagrams, and maintenance schedules. Technical consultation helps your team with commissioning. Our global service network provides localized support for ongoing operations.

Contact Us

Reach out to discuss your specific requirements for High Torque Wound Rotor Induction Motor: sxmotor@yeah.net