High Voltage Wound Rotor Induction Motor

Basic Introduction
The High Voltage Wound Rotor Induction Motor is a premium motor product developed through years of research and manufacturing expertise in high-voltage three-phase asynchronous motors. The wound rotor adopts a robust box-type structure, with the frame constructed from welded steel plates to ensure light weight and excellent rigidity.

The stator of this large high-voltage slip ring motor utilizes a slide-in external press-fit structure. The stator winding employs F-class insulation material, featuring reliable end fixing and bundling. During manufacturing, the windings undergo multiple inter-turn pulse voltage and ground pressure tests, followed by a Vacuum Pressure Impregnation (VPI) solventless paint process. This ensures excellent and reliable insulation performance, high mechanical strength, and strong moisture resistance. Similarly, the wound rotor is treated with Class F insulation and VPI processing, with all rotor weld heads and wiring fully insulated. To prevent carbon dust from entering the windings, the slip rings and stator windings are housed in two isolated spaces. Depending on the motor's power and speed, bearings can be configured as either rolling or sliding bearings, with the basic protection level set at IP54 (increasing for higher protection requirements). The main outlet box, featuring IP54 protection and a separate external ground terminal, is typically installed on the right side of the base (facing the shaft extension end), though left-side installation is available upon request. Additionally, a separate water cooling system is positioned at the top of the motor.

Technical Parameters

• Center Height Range: H400 ~ 1000mm
• Power Range: 200kW ~ 12,000kW
• Number of Poles: 4 / 6 / 8 / 10 / 12
• Rated Voltage: 6000V / 6600V / 10000V / 11000V
• Rated Frequency: 50Hz / 60Hz
• Protection Level: IP54 or IP55
• Insulation Class: F
• Work System: S1 (Continuous)
• Cooling Method: IC81W
• Installation Form: IMB3
• Motor Connection: Y-connection (Three outlet terminals in the junction box, located on the right side of the base facing the spindle extension)
• Altitude: No more than 1000m
• Operating Environment
  This wound rotor induction motor is designed for environments where the ambient air temperature does not exceed 40°C and the minimum temperature is not lower than -15°C. It is suitable for locations without serious dust, corrosive gases, or explosive hazards. Custom designs for damp-heat or high-altitude environments are also available.
• Key Features
  The YRKS large high-voltage wound rotor slip ring motor is engineered to deliver high starting torque while maintaining a low starting current. It is highly suitable for applications where the feeder line capacity is insufficient to start squirrel-cage rotors, or where long starting times, frequent starts, and small-range speed regulation are required. Key advantages include high efficiency, energy saving, low noise, low vibration, light weight, reliable performance, and convenient installation and maintenance.
• Main Manufacturing Process Flow
• Motor Stator: Casing processing → Punching press → Iron core seating → Coil making → Weaving → Dipping paint drying
• Wound Rotor: Blank shaft processing → Iron core press installation → Iron core winding → Rotor string shaft → Weaving → Dipping paint drying → Dynamic balance
• Motor Assembly: Stator and rotor assembly → Machine testing → Motor appearance coloring → Packaging and storage
• Quality and Service Commitment
  Our motor manufacturing facility adheres to the principles of green, efficient, and energy-saving production. We prioritize the harmonious development of our internal and external environment, strictly implementing standard motor processes and selecting high-quality, energy-saving materials to guarantee superior product quality.
• Our core advantages include:

1. Professional motor manufacturing services.
2. A sound product quality management and certification system.
3. A dedicated sales and technical service team.
4. Perfect manufacturing processes with strong mechanical processing capabilities.
5. A high-standard technical service system.
6. A commitment to good faith, mutual benefit, and reliable credit guarantees.