Yrkk Large/Medium-Sized High-Voltage Wound Rotor Motor

• Application: Industrial
• Operating Speed: Constant Speed
• Number of Stator: Three-Phase
• Species: Yr Wound Rotor Slip Ring Motor
• Rotor Structure: Winding Type
• Casing Protection: Protection Type
• Model NO.: YRKK5002-8-250KW
• Number of Poles: 8
• Starting Mode: Serial Rotor Resistance Starting
• Certification: ISO9001, CCC
• Brand: China Motor
• Voltage: 3kv.3.3kv.6kv.6.6kv.10kv.11kv
• Protection: IP44 or IP54,IP55
• Nsulation Class: F
• Output Power: 250kw
• Cooling Method: IC611/IC616
• Duty: S1
• Frequency: 50Hz/60Hz
• Stator Winding: 100% Red Copper
• Rotor Winding: 100% Red Copper
• Driving: Steel Rolling Mill, Cement Mill,Sugar Rolling Mill
• Transport Package: Plywood Case
• Trademark: ZCL
• Origin: Shijiazhuang, China
• HS Code: 8501530090
• Production Capacity: 500 Sets Per Month

Product Description

Motor frame
Motor frame: the use of domestic high-quality 45 # steel plate welded processing, with surface processing size tolerance should be less than 0.01mm, to ensure that the mechanical properties of the motor. 
Motor spindle
Spindle material forged 45A steel. After quenched and tempered after rough car, fine car, washing, grinding and other processes from processing, to ensure the overall mechanical properties of the spindle and precision tolerance size.
Stator rotor core
(1) fixed rotor core is the use of low loss, high permeability, high stacking coefficient, the surface of the insulating film adhesion and good weldability, no time, the thickness of 0.5mm electrician high-quality grain non-oriented cold rolling Silicon steel sheet laminated. Cold rolled silicon steel sheet performance indicators should not be less than GB2521-88 requirements, the material used by the performance of not less than 50W310. Each piece of silicon steel sheet should be no burr, both sides coated with F-class insulation material paint to reduce the eddy current loss.
(2) fixed rotor core ventilation groove layout so that the air flow smooth and smooth, so that the stator core is fully cooled, the wind resistance loss is small.
Stator winding coil
Stator winding coil using domestic high-quality manufacturers to provide the F-class insulation grade enameled wire or double glass fiber flat copper wire wound around. In the manufacturing process after several inter-turn pulse voltage test and ground pressure test.
The stator rotor winding is embedded in the core  
The stator rotor winding: 100% pure copper flat copper bending, F-class insulation mica wrapped.
Stator rotor winding wiring
In the manufacturing process with silver copper argon arc welding, and with F-class insulation mica will be welded at the package so the motor insulation performance is excellent and reliable, good mechanical strength, moisture resistance.
Stator winding rotor winding vacuum impregnation
Using foreign advanced vacuum pressure impregnation solvent-free paint equipment and process (VPI) treatment. Has a good anti-corona and anti-corrosion resistance, in the groove, the end of the site to take anti-halo measures.
Therefore, the motor insulation performance is excellent and reliable, good mechanical strength, moisture resistance.
Rotor fine processing and dynamic balance check
Rotor fine processing to ensure the stability of the stator and rotor between the uniform
Dynamic balancing checks ensure good mechanical performance of the motor. 
 Machine assembly and experiment
experimental projects
Mechanical inspection/
Determination of DC resistance
Determination of insulation resistance
No load test
Determination of vibration and temperature rise
Determination of open circuit voltage of rotor
Stall test
Winding to ground pressure
Turnstrap test
30KV DC leakage test (only 10KV motor) 

Center height range: H355 ~ 1000mm
Power range: 185kW ~ 10000kW
Number of poles: 2/4/6/8/10/12
Rated voltage: 6000V/6600V/10000V/11000V
Rated frequency: 50HZ/60HZ
Protection level: IP54 or IP55
Insulation class: F
Work system: S1 (continuous)
Cooling method: IC611/IC616
Installation form: IMB3
Motor connection: Y (three outlet terminals in the junction box, the junction box from the extension of the spindle is located on the right side of the base)
Altitude: no more than 1000m
This type of 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 and explosive gas in the air (which can also be made into a damp heat or high-altitude motor).

The high-quality slip ring motor is a sliding wrap-around three-phase asynchronous motor that can increase the starting torque at a small starting current. The motor is suitable for applications where the capacity of the feeder line is insufficient to start the squirrel-cage rotor, the starting time is long, the starting is frequent, and the 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, 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
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


There are many types of motor products manufactured and sold by our company. The main products are high- and low-voltage three-phase asynchronous motors. The motor structure types include squirrel-cage type and winding type. Among them, high-voltage synchronous motors mainly support air compressors and mine ball mill equipment. use. We adhere to the service tenet of "focus on products, service with heart" and provide high-quality motor products to customers.


More details, welcome to call us!
Q: What are the payment terms?
A: 30% T/T in advance, 70% before shipment
Q: What is your delivery time?
A: Different models with different time, 10-90 days after order confirmed.
Q: What is your MOQ?
A: It depends on model.
Q: Where is your loading port?
A: Shanghai or Tianjing Port, China.