Wound Rotor Slip Ring Motor

The ZCL Wound Rotor Slip Ring Motor is a specialized type of 3-phase AC motor designed for high starting torque and adjustable speed. Unlike squirrel cage motors, the Wound Rotor Slip Ring Motor features external resistance connected to the rotor circuit, providing unique advantages for industrial applications requiring controlled torque and speed. Our JR winding slip ring motor casing is a cast iron casing or a steel plate welded casing with high structural strength and good mechanical properties. The motor shaft extension end and the non-bearing end have an inlet and outlet air outlet, and the motor slip ring is located at the non-bearing end. The series of motors has a simple structure, convenient installation, convenient maintenance, large starting torque and safe and reliable operation. JR winding slip ring motors can drive a variety of different machines, such as fans, compressors, pumps, crushers, ball mills, winches, hoists, transport machinery and other equipment, as well as mines, machinery, power plants and are Used as the prime mover in various industrial and mining enterprises.

The JR series motor is a Wound Rotor Motor. This series of motors meet the technical standard conditions. It can drive a variety of different machines, such as fans, compressors, pumps, crushers, ball mills, cutting machines, transport machinery and other equipment. It is used as a prime mover in the machinery industry, power plants and various industrial and mining enterprises. The rating of the JR winding slip ring motor is based on the continuous working system (S1). The frequency is 50HZ, the rated voltage is 220V/380V, 380V, 415V, 3000V, 6000V, which can be designed to 3300V/10000V according to the needs of users.

The protection of this series of Wound Rotor Motor is IP23; the cooling method is IC01; the structure and installation method of the motor is generally IMB3, and it can also be designed as vertical installation according to customer requirements.

The ratio of the maximum torque to the rated torque of the JR winding slip ring motor at the rated voltage is not less than 1.8.

The JR winding slip ring motor must be connected to the starting varistor in the rotor circuit at the start. It is not permissible to short-circuit the rotor windings directly.

Wound Rotor Motor Parameters

Construction and Design

The JR series Wound Rotor Slip Ring Motor features a protective winding type rotor and a continuous working system (S1). It is equipped with:

• Casing: Cast iron or steel plate welded casing for high structural strength.

• Cooling Method: IC01 for effective cooling.

• Protection Level: IP23, suitable for controlled environments.

• Rotor Design: Three-phase insulated windings connected to slip rings via brushes.

• Stator Design: Similar to a 3 Phase Cage Induction Motor, ensuring efficient operation.

Technical Specifications

• Motor Power Range: 80KW-850KW

• Rated Voltage: 380V/415V/660V/690V/3000V/6000V/10000V

• Number of Poles: 6/8/10/12

• Rated Frequency: 50Hz/60Hz

• Working System: S1

• Insulation Class: B

• Ambient Temperature: ≥ -15°C and ≤ 40°C

ZCL Wound Rotor Motor is suitable for altitudes up to 1000 m and the ambient air temperature is 0-40 degrees. The protective motor should be installed in a room with clean air, no dust, steam, acid, alkali and other corrosive gases. It is not allowed to be used in an environment containing explosive gas or dust.

Advantages of ZCL Wound Rotor Slip Ring Motor

High Starting Torque

The slip ring design allows for high starting torque, making it suitable for heavy-duty applications such as:

• Lifts

• Cranes

• Elevators

• Mills

Adjustable Speed

By varying the external resistance in the rotor circuit, the motor’s speed can be precisely controlled to match specific application requirements.

Low Starting Current

The external resistance reduces the starting current, ensuring smooth operation even in power systems with limited capacity.

Enhanced Efficiency

Compared to a Squirrel Cage Rotor, the Wound Rotor Slip Ring Motor offers improved overload capacity, smoother acceleration, and a higher power factor.

Applications of Wound Rotor Slip Ring Motor

The Wound Rotor Slip Ring Motor is versatile and used across various industries, including:

1. Mining: Powering heavy machinery such as crushers and ball mills.

2. Power Plants: Driving large fans and pumps.

3. Industrial Facilities: Operating elevators, hoists, and conveyors.

4. Specialized Machinery: Supporting equipment with large flywheels, such as punch presses.

5. Energy Efficiency: While wound rotor motors offer control advantages, they are generally less energy-efficient than squirrel-cage induction motors or permanent magnet motors. As a result, they might not be the first choice for applications where high energy efficiency is a critical factor.

Packing and Shipping

1. The outer packaging of the Wound-Rotor Motor is all standard export-oriented wooden plywood packaging.

2. The Wound-Rotor Motor packaging is protected from moisture, water plastic soft packaging

3. For products with special transportation requirements (such as temperature, fragility, variability, and ease to get wet), the packaging protection measures will be strengthened, and the target mark will be printed on the package.

4. There are obvious signs and symbols on the packing box that must be paid attention to during transportation and storage (such as position, moisture, rain, shockproof, lifting position, etc.).

Equipment Capacity

The company has a large-scale laboratory, intelligent CNC winding machine, CNC rising machine, automatic wrapping machine, VPI high pressure vacuum immersion system, large-scale dipping paint drying furnace, 60 tons test platform, large vertical car, milling machine, grinding machine, Each type of dynamic balancing machine, double-feedback test and detection system with 6MW (12MW) motor and other motor production professional equipment more than 500 sets, sound mechanical equipment processing capacity, to lay a good foundation for customers to improve good quality motor products.

Main Process Flow of the Slip Ring-Rotor Motor

Motor stator: casing processing → punching press → iron core seating → coil making → weaving → dipping paint drying

Electronic rotor: blank shaft processing → iron core press installation → iron core cast aluminum → rotor string shaft → weave → dipping paint drying → dynamic balance

Motor assembly: stator rotor assembly → machine test → motor appearance coloring →packaging storage

Why Choose ZCL's Wound Rotor Slip Ring Motor?

• Expert Manufacturing: Professional design and adherence to international standards.

• Certifications: ISO9001, CCC, CE, and UL certified.

• Customer Support: Comprehensive sales and technical service team.

• Durable Construction: High mechanical strength and reliable operation.

Technical Parameters Recap

• Cooling Method: IC01

• Protection Level: IP23

• Installation: Horizontal (IMB3) or vertical upon request

The ZCL Wound Rotor Slip Ring Motor is a reliable, high-performance solution for applications requiring high starting torque and adjustable speed. Its robust design and efficiency make it a superior choice over other motors, including the 3 Phase Cage Induction Motor and Squirrel Cage Rotor Motor. Whether for mining, industrial, or specialized machinery, this motor delivers unparalleled performance. Contact us to learn more about our Wound Rotor Slip Ring Motor and how it can benefit your operations.