Product Highlights
High Efficiency & Energy Saving: Adopts low-loss silicon steel sheets and optimized design to cut losses and boost power density.
Customizable Voltage & Power: Rated power up to 25000kW; available voltage options include 6kV, 10kV, 11kV, 13.2kV and 13.8kV.
Robust Insulation System: Stator windings feature Class F insulation with VPI treatment, delivering outstanding moisture resistance and dielectric strength.
Flexible Mounting & Rotation: IMB3 horizontal mounting configuration; rotation direction can be customized clockwise or counter-clockwise as required.
Wide Application Scope: Designed for compressors, fans, pumps and mining equipment for industrial and mining operations worldwide.
Reliable Bearing Options: Rolling bearings and sliding bearings are both available, equipped with on-line oil filling and draining structure.
Certified Quality Standards: Compliant with ISO9001, CCC, CE, GB755 and IEC34-1 rotating electrical machine standards.
Proven Manufacturer Experience: More than 70 years of manufacturing experience, annual output capacity of 8000 MW, products exported to over 20 countries.
Product Attributes
| Item | Specification | Item | Specification |
|---|
| Customization | Available | Application | Industrial, General Purpose |
| Operating Speed | Constant Speed | Model NO. | YKS630-6-1850KW-4160V 60HZ IP55 |
| Phase | Three-Phase | Rotor Structure | Squirrel-Cage |
| Enclosure Type | Closed Type | Number of Poles | 2p-16p |
| Starting Mode | Direct-on-line Starting | Certification | ISO9001, CCC, CE |
| Rated Power | up to 25000kW | Frequency | 50Hz/60Hz |
| Voltage | 6kV, 6.6kV, 10kV, 11kV, 13.2kV, 13.8kV | Protection Grade | IP55 |
| Cooling Method | IC81W | Mounting Type | IMB3 |
| Rotation Direction | Bi-directional | Insulation Class | F |
| Color | Customizable | Duty Type | S1 |
| Standard | IEC | Temperature Rise Class | B |
| Max Ambient Temperature | 40℃ | Altitude | ≤1000m |
| Bearing | SKF Bearing | Transport Package | Standard Seaworthy Packing |
| Trademark | CHANGLI | Origin | China |
| HS Code | 8501530090 | Production Capacity | 500000 units per year |
Product Description
Y, YKS, YQF, YKK, YR, YRKS, YRQF and YRKK series high voltage three-phase induction motors were introduced and developed by our company in the 1980s, with more than 30 years of iterative upgrade. With continuous improvement of insulating materials, adoption of low-loss silicon steel sheets, upgrade of insulation grade and design optimization, these motors achieve reduced power losses and higher power density. Drawing on over 60 years of experience in high voltage induction motor design and manufacturing, we have completed the latest round of optimization to meet domestic and industrial market demands. Test results verify that the new series reaches or approaches the world’s advanced level in both technical and economic performance. The motors are mass-produced and supplied across China, exported to more than 20 countries and regions including Europe, America, Africa, Hong Kong and Macao, and have gained favorable feedback from end users.
This series adopts premium raw materials and mature production processes, featuring high efficiency, energy saving, low vibration, stable operation and easy installation & maintenance.
Its power ratings, electrical characteristics, mounting dimensions and tolerances conform to GB755 Rotating Electrical Machines Rating and Performance, IEC 34-1 Rotating Electrical Machines Rating and Performance and machinery industry standards.
In accordance with GB4942.1 and IEC34-5, the enclosure protection grades cover IP23, IP44, IP54, IP55 and IP56. IP23 motors can be converted to IP44 (pipe ventilation) or IPW24 (weather protected type). Other custom protection grades can be provided upon request.
Cooling methods follow GB/T1993 and IEC34-6, including IC01, IC611 and IC81W. Alternative cooling solutions are available for special requirements.
The standard construction and mounting arrangement is IMB3 (horizontal foot-mounted), complying with GB997 and IEC 34-7 for motor construction and mounting type codes.
Based on rotor type, protection class and cooling method, the series is divided into 8 sub-models as below:
| Model | Protection Class | Cooling Method | Squirrel Cage Rotor | Wound Rotor |
|---|
| Drip-proof | IP23 | IC01 | Y Series | YR Series |
| Weather Protected | IPW24 | IC01 | YQF Series | YRQF Series |
| Air-to-Water Cooled Closed | IP44, IP54, IP55, IP56 | IC81W | YKS Series | YRKS Series |
| Air-to-Air Cooled Closed | IP44, IP54, IP55, IP56 | IC611 | YKK Series | YRKK Series |
Technical data and installation dimensions of all 10kV frame sizes in this catalogue can be adapted for 3kV, 10.5kV and 11kV variants.
Application
This motor series drives equipment such as compressors, ventilation fans, water pumps, stock removing machines and conveyors, serving as prime movers for mines, machinery, petrochemical plants, power stations and other industrial & mining enterprises.
For loads with large inertia such as blowers, coal mills, rolling mills, crushers and belt conveyors, customers need to submit relevant technical data and sign a technical agreement for customized design to guarantee stable operation.
Standard operating conditions:
- Altitude ≤1000m above sea level
- Maximum ambient temperature ≤40℃; minimum ambient temperature: -15℃ for rolling bearing motors, 5℃ for sliding bearing motors and YKS/YRKS motors
- For YKS and YRKS motors: cooling water inlet temperature 5℃ ~ 33℃
- Monthly average maximum relative humidity ≤90% with monthly average minimum temperature ≤25℃ in humid months
- Power supply frequency: 50Hz±1%
- Supply voltage deviation: within ±5% of rated voltage
- Duty: S1 continuous operation
Construction Description
Y and YR are the base models with IP23 protection and IC01 cooling. Derivative versions include YKS (air-water cooled), YQF (weather protected), YKK (air-air cooled), YRKS, YRQF and YRKK.
The motor adopts a widely used modular box structure. Frame and end shields are steel plate welded with high rigidity and light weight. After removing the protective cover or cooler, internal components are accessible for convenient installation and maintenance.
The stator adopts external press-fit structure. Stator windings use Class F insulation and anti-corona materials. Winding terminals are fixed by special reliable binding technology. The whole stator undergoes VPI vacuum pressure impregnation with solventless Class F varnish, ensuring superior insulation, moisture resistance and surge withstand capability.
Most squirrel cage rotors are die-cast aluminum type with high reliability and zero rotor bar breakage risk. Copper bar squirrel cage rotors adopt advanced reliable welding and slot fastening technology. Wound rotors use Class F insulation and also complete VPI treatment.
Rolling bearings and sliding bearings are optional, selected according to motor power and speed. Base bearing protection grade is IP44; bearing protection will be upgraded together with higher motor enclosure grade.
Motors equipped with rolling bearings support on-line oil filling and draining without shutdown.
The main terminal box is sealed with IP54 protection. It is fitted on the right side (viewed from shaft extension end) and can be switched to the left side on request. Cable entry direction can be adjusted to top, bottom, left or right. Separate grounding terminal is built inside the box.
Starting Instruction for Y, YKS, YQF, YKK Induction Motors
Advanced computer simulation is applied to calculate temperature and stress distribution of squirrel cage rotors to avoid premature damage caused by overload during startup. Please comply with the following requirements:
- The inertia of driven equipment (converted to motor speed) shall not exceed the allowable load inertia J listed in technical datasheet
- Terminal voltage shall remain no less than 85% of rated voltage during starting
- Load torque characteristic matches typical pump and fan curves
Under above conditions, the motor allows two successive cold starts or one hot start, with natural coast-down interval between starts. Further restart is permitted after one hour cooling period.
If the load inertia exceeds the specified value, frequent starting is required or heavy-load startup is needed, please contact us for special design confirmation to secure reliable starting performance.
Certifications
IC81W High Voltage Asynchronous Induction Motor (YKS630 1850KW 60Hz IP55)
Packaging & Shipping
IC81W High Voltage Asynchronous Induction Motor (YKS630 1850KW 60Hz IP55)
Power range: 0.55kW ~ 20000kW
Voltage range: 380V ~ 13.8kV
Shaft height: 80mm ~ 1120mm
Our Advantages
Wide power coverage
Excellent starting performance
Suitable for all industrial sectors and global supply projects
High reliability to reduce downtime and operating cost
Flexible customized design
Witness FAT (Factory Acceptance Test) available on-site or remotely online
Quality Control
In-process Inspection
All measuring instruments are calibrated annually.
| Part | Inspection Items |
|---|
| Coil | 1. Raw material physical & chemical test2. Winding process inspection3. Winding dimension check |
| Iron Core | 1. Silicon steel sheet material test report2. Lamination burr and coating inspection3. Laminated core dimension inspection |
| Frame | 1. Weldment qualification certificate2. Finishing machining inspection |
| Rotor | 1. Core stacking inspection2. Rotor bar welding inspection3. Bar & end ring material, appearance, conductivity and dimension check4. Slot bar fastening inspection5. Outer diameter and dimension check6. Dynamic balancing correction |
| Shaft | 1. Raw material and annealing verification2. Finishing machining inspection |
| Stator | 1. Core compression check2. Core length and segment length check3. Winding insertion inspection4. Core loss test |
| Assembly | 1. Plain bearing dimension and surface quality check2. Air gap, stator-rotor axial alignment, inner fan and air shield clearance check3. Internal cleaning inspection4. Shaft center height and mounting dimension check |
| Test | 1. Routine test2. Type test |
Test Items
Every motor must pass full tests before delivery and come with an official test report.
- Routine test: Winding three-phase DC resistance, winding insulation resistance to earth, high voltage withstand test, no-load current, no-load power, no-load loss, three-phase current unbalance, locked rotor current, locked rotor torque, maximum torque, rotation direction, vibration (horizontal, vertical, axial), noise
- Type test: Full load input power, full load current, stator winding loss, rotor winding loss, iron loss, mechanical loss, stray loss, full load slip, stator winding temperature rise, bearing temperature, hot insulation resistance, overload test, full load power factor, efficiency
After Sales Service
Warranty Period
Standard warranty: 12 months after commissioning or 18 months after shipment, whichever comes first.
Extended warranty plan is available upon inquiry.
