Basic Introduction of Wound Motor

Wound motor is a motor product developed and manufactured by ZCL based on years of research, development, and manufacture of high-voltage three-phase asynchronous motors. The wound motor adopts a box-type structure. The frame is made of a steel plate welded box structure, which is lightweight and offers good rigidity.

The stator of the YRKS large high-voltage wound motor adopts a slide-in external press-fit structure. The stator winding resistance uses F-class insulation material, and the end features reliable fixing and bundling. After multiple inter-turn pulse voltage tests during the manufacturing process, the ground pressure test is carried out using a vacuum pressure impregnation solventless paint process (VPI). Therefore, the insulation performance of the motor is excellent and reliable, with good mechanical strength and strong moisture resistance. The wound rotor is treated with Class F insulation and the VPI process. The rotor weld head and wiring are all insulated. The slip ring and stator winding of the motor are located in two isolated spaces to prevent toner from entering the winding. The bearing comes in two types: rolling bearing and sliding bearing. Depending on the wound motor's power and speed, the basic protection form is IP54. If the wound motor requires a higher degree of protection, the protection level of the bearing will also increase accordingly.

The main outlet box of the high-voltage wound motor has an IP54 protection grade and is generally installed on the right side of the motor (facing the shaft extension end). It can also be installed on the left side of the motor according to the order. The main outlet box has a separate external ground terminal. The top of the wound motor is equipped with a separate water cooler system.

Wound Motor Parameters

• Center height range: H400 ~ 1000mm
• Power range: 200kW ~ 12000kW
• 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 (three outlet terminals in the junction box; the junction box, viewed from the spindle extension, is located on the right side of the base)
• Altitude: no more than 1000m
• The wound motor is suitable for use in environments where the ambient air temperature does not exceed 40°C and there is no serious dust. The minimum ambient air temperature is -15°C, and there is no corrosive or explosive gas in the air (it can also be manufactured as a damp-heat or high-altitude motor).

Features

The YRKS large high-voltage wound motor can increase the starting torque at a small starting current. The wound motor is suitable for applications where the capacity of the feeder line is insufficient to start the squirrel-cage rotor, where the starting time is long, where starting is frequent, and where small-range speed regulation is required. This series of motors has the advantages of high efficiency, energy saving, low noise, low vibration, light weight, reliable performance, and convenient installation and maintenance.

Main Process Flow of the Motor

• 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 cast aluminum → rotor string shaft → weaving → dipping paint drying → dynamic balance
• Motor assembly: stator-rotor assembly → machine test → motor appearance coloring → packaging and storage

Company Advantages

Our company's motor manufacturing factory adheres to the concept of green, efficient, and energy-saving production service. We pay attention to the harmonious development of the internal and external environment, build environmentally friendly motor manufacturing enterprises, strictly implement motor standard processes, and select high-quality energy-saving materials to ensure the quality of our motor products.

1. Professional motor manufacturing service provider
2. Sound product quality management and certification system
3. Professional sales and technical service team
4. Perfect motor manufacturing process and strong mechanical processing capability
5. High-standard product technical service system
6. Good faith, mutual benefit, and reliable credit guarantee