743r/Min 1250kw High Voltage Slip Ring Three Phase Electric Induction Motor

Basic Info.

Model NO.	YRKK630-8-1250KW
Number of Poles	8
Starting Mode	Serial Rotor Resistance Starting
Certification	ISO9001, CCC
Brand	China Motor
Frequency	50Hz/60Hz
Stator Winding	100% Red Copper
Duty	S1
Driving	Steel Rolling Mill, Cement Mill,Sugar Rolling Mill
Rated Speed	743r/Min
Rotor Winding	100% Red Copper
Output Power	1250kw
Protection	IP44 or IP54,IP55
Cooling Method	IC611/IC616
Nsulation Class	F
Voltage	3kv.3.3kv.6kv.6.6kv.
Transport Package	Plywood Case
Trademark	ZCL
Origin	Shijiazhuang, China
HS Code	8501530090
Production Capacity	100 Sets Per Month

Product Description

The high-voltage slip ring motor is a wound-type three-phase asynchronous motor. The power rating, installation dimensions and electrical performance of this type of motor are in compliance with relevant IEC standards. The basic installation method of the motor is the horizontal bottom angle (IMB3), the working system is the continuous working system (S1), and the wound rotor is made of Class F insulation material.The bearings of high voltage slip ring motors are available in both rolling and plain bearings, depending on the motor power and speed. The rated frequency of the motor's power supply is 50Hz, the rated voltage is 6000V/10000V, and the basic type of protection is IP54. The motor slip ring housing can be protected to IP22 or IP23. Other voltage, frequency and degree of protection motors are also available upon request.High-voltage slip ring motors can be used to drive a variety of different machinery, such as compressors, pumps, crushers, cutting machine tools, transportation machinery and other mechanical equipment, in mining, machinery industry, petrochemical industry, power plants and other industrial and mining Used as a prime mover in an enterprise. The motor used to drive the blower, coal mill, rolling mill and winch should indicate the purpose and technical requirements when ordering, and adopt special design to ensure reliable operation.

Center height range: H355 ~ 1000mmPower range: 185kW ~ 5600kWNumber of poles: 2/4/6/8/10/12/16Rated voltage: 3000V/3300V/6000V/6600V/10000V/11000VRated frequency: 50HZ/60HZProtection level: IP54 or IP55Insulation class: FWork system: S1 (continuous)Cooling method: IC611/IC616Installation form: IMB3Motor 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 1000mThis 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).
Comparison of different series High Voltage motors

No.	Squirrel-cage motor	Y JS	YKK	YKS	Y2, Y3
	Slip ring motor	YR JR JR2	YRKK	YRKS	YR2, YR3
1	Structure	Box-type construction, made up of steel plates welded with each other			Compact struction
2	Cooling method	IC01 or (IC11, IC21, IC31)	IC611 or IC616	IC81W	IC411
3		Natural ventilation, with top mounted protection cover	With top mounted air-air cooler	With top mounted air-water cooler
4	Protection type	IP23	IP44 or IP54	IP44 or IP54	IP54
5	Insulation	F
6	Mounting arrangement	IMB3
7	Voltage available	380 v, 2400 v, 3kv, 3.3kv; 4160 v, 6kv, 6.6kv; 10kv, 11kv
8	Frequency available	50Hz , 60Hz

YRKK series motors are slip-surrounding three-phase asynchronous motors, which 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 motorMotor stator: casing processing → punching press → iron core seating → coil making → weaving → dipping paint dryingElectronic rotor: blank shaft processing → iron core press installation → iron core cast aluminum → rotor string shaft → weave → dipping paint drying → dynamic balanceMotor assembly: stator rotor assembly → machine test → motor appearance coloring → packaging storage


The company has 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.


1. Professional motor manufacturing service provider;
2. Sound product quality management and certification system;
3. Have a professional sales and technical service team;
4. The motor has perfect process and strong mechanical processing capability;
5. High standard product technical service system;
6, good faith and mutual benefit, good credit guarantee.