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| Attribute | Details | Attribute | Details |
|---|---|---|---|
| Model No. | YPKK900 | Series | YPKK Series |
| Brand | CHANGLI | Motor Type | High Voltage Three-Phase Asynchronous Motor |
| Rated Power | Up to 20,000 kW | Voltage | 3 kV, 3.3 kV, 6 kV, 6.6 kV, 10 kV, 11 kV, 13.8 kV |
| Frequency | 50 Hz / 60 Hz | Number of Poles | 2–16 Poles |
| Phase | Three-Phase | Rotor Type | Squirrel-Cage |
| Starting Mode | Direct On-Line Starting | Speed Control | Adjustable Speed / Frequency Conversion 5–50 Hz |
| Insulation Class | Class F | Cooling Method | IC666, IC611, IC616 |
| Protection Level | IP44 / IP54 / IP55 | Enclosure Type | Closed Type |
| Frame Size | 355–1,120 mm | Frame Material | Carbon Steel |
| Mounting | IMB3 | Rotation Direction | CW / CCW |
| Duty Type | S1 | Bearing Brand | SKF |
| Manufacturing Standard | IEC Standard | Certification | ISO 9001, CCC, CE |
| Customization | Available | Application | Industrial, Universal |
| Transport Package | Standard Seaworthy Packaging | Origin | China |
| HS Code | 8501530090 | Production Capacity | 500,000 |
The YPKK series high-voltage three-phase asynchronous motors, with frame sizes from H355 to H1120, feature a reasonable structure, advanced technology, and reliable performance. They offer high efficiency, energy saving, low noise, low vibration, stable operation, and convenient installation and maintenance.
The motor’s power, mounting dimensions, and electrical performance comply with GB 755-2000 Rotating Electrical Machines – Rating and Performance, relevant IEC standards, and industry standard JB/T 10314.2-2002.
These motors are suitable for environments where the altitude does not exceed 1,000 m above sea level, the ambient air temperature does not exceed 40°C, and there is no serious dust, corrosive gas, or explosive gas. Motors can also be manufactured for hot, humid, or plateau areas according to customer requirements.
The motor adopts a box-type structure with a steel plate welded frame, providing good rigidity and relatively lightweight construction. A closed air-to-air cooler is installed on the top of the motor, which is easy to disassemble and install, facilitating maintenance and repair.
The stator uses an external pressure mounting structure. The stator windings are made of F-class insulating materials, with reliable end fixing and binding. During manufacturing, the windings undergo multiple turn-to-turn impulse voltage tests and ground voltage withstand tests. They are treated using advanced Vacuum Pressure Impregnation solvent-free paint equipment and process, ensuring excellent insulation performance, strong moisture resistance, and good mechanical strength.
The squirrel-cage rotor adopts a copper bar structure and is manufactured using advanced and reliable welding technology. After dynamic balancing, the rotor ensures smooth and stable motor operation.
Depending on motor power and speed, rolling bearings or sliding bearings can be selected. The motor supports frequency conversion speed control within a range of 5–50 Hz. Standard rated voltages include 6 kV and 10 kV, with protection levels of IP44, IP54, or IP55. Other voltages, frequencies, and protection levels can be provided according to customer requirements.
All measuring instruments and testing equipment are calibrated annually. Quality control is carried out for each key component and assembly stage.
| Part | Inspection Items |
|---|---|
| Coil | Raw material physical and chemical tests; coil winding process inspection; winding dimension inspection |
| Iron Core | Silicon steel sheet material test report; lamination burr and paint film inspection; laminated steel sheet dimensional inspection |
| Frame | Cold welding parts conformity certificate; finished machining inspection |
| Rotor | Rotor core lamination inspection; conducting bar welding inspection; end ring material, appearance, conductivity, and size check; conducting bar fastening check; dimensional check including iron core outer diameter; dynamic balance correction |
| Shaft | Raw material and annealing check; finished machining inspection |
| Stator | Iron core compactness check; iron core length and section length check; winding insertion inspection; iron loss check |
| Assembly | Bearing size and surface quality check; air gap and axial centerline alignment check; inner fan and windshield clearance check; internal cleaning inspection; shaft center height and mounting dimension check |
| Test | Routine test and type test |
Each motor must pass testing before leaving the factory. A test report will be issued for every qualified motor.
Routine Test Items
Standard warranty: 12 months after commissioning or 18 months after delivery, whichever occurs first.
Extended warranty options are available upon request.
Founded in 1946, Changsha Changli Electric Co., Ltd. is a leading electric motor factory and a TOP 10 electric motor manufacturer in China. We manufacture and deliver asynchronous motors with squirrel cage or slip ring rotors, synchronous motors, explosion proof motors, tailor-made motors, etc. Power output: 0.55KW to 20MW Voltage: 380V to 13.8KV Frame size: 80mm to 1120mm
