Power range: 0.55KW ~20,000KW
Voltage range: 380V to 13.8KV
Shaft height: 355mm-1120mm
Frame: Cast iron, steel
Stator: Copper
Rotor: Copper/aluminum
Shaft: ASTM1045 Steel
Bearing: SKF, FAG or equivalent Chinese brands
Product Overview
IEC Standard Medium Voltage Electric Motors are designed to meet international IEC standards and provide reliable performance for heavy-duty industrial applications. Our IEC Standard Medium Voltage Electric Motors feature a wide power range from 0.55kW to 20,000kW and operating voltage from 380V to 13.8kV, making them suitable for various industrial systems. Changli Electric specializes in manufacturing high-performance IEC Standard Medium Voltage Electric Motors for demanding industrial environments.
Y (A4), YKK(DAZO) series high-voltage three-phase asynchronous motor (frame size 355~1120mm) is a series of products developed by our company by introducing, absorbing and digesting advanced technology at home and abroad, adopting modern advanced field analysis technology for electromagnetic calculation, and making fine calculation and optimal design for various losses, wind resistance and strength of each component of the motor. The series of products are developed through mature and reliable design and production system, combined with the company's over seventy years of experience in manufacturing medium and large high-voltage AC motors; the manufacturing of high-quality materials and scientific processing technology, so that it has the advantages of high efficiency, low noise, low vibration, high reliability and easy installation and maintenance.
The series products are mainly used in general mechanical equipment such as fans, pumps, compressors, crushers, chip machines, transportation machinery or other similar mechanical equipment in petroleum, chemical, coal, power station, metallurgy, transportation, textile, pharmaceutical and grain processing industries.
After absorbing and digesting the advanced technology at home and abroad, Changli Electric uses the "field and circuit" combination method for electromagnetic design of this series, which improves the calculation accuracy of electromagnetism and can provide accurate maximum torque multiplier, and the overload capacity of the motor is effectively guaranteed. Using FEM mechanical analysis method for structural design, and constantly verified by practice, can accurately apply boundary conditions to the established mechanical model, thus solving the accuracy of the use of materials, control the vibration and noise of the motor; at the same time, FEM mechanical analysis method is applicable to various cooling methods, high accuracy and intuitive air volume distribution, improve the level of temperature rise calculation in motor design, reduce ventilation losses, and improve motor efficiency.
With advanced electromagnetic design and optimized structural analysis, these IEC Standard Medium Voltage Electric Motors offer high efficiency, low vibration, and stable operation. The motors are manufactured using high-quality materials including copper stator windings, durable steel shafts, and reliable bearings such as SKF or FAG.
Thanks to their robust construction and proven reliability, IEC Standard Medium Voltage Electric Motors are widely used in pumps, fans, compressors, crushers, conveyors, and other large mechanical equipment in industries such as power generation, petrochemical, mining, metallurgy, and water treatment.
All the measuring apparatus and instruments are calibrated each year.
Quality inspection and control for each item
Name | Inspection item |
Coil | 1. Physical and chemical tests for raw materials |
2. Coil winding process inspection | |
3. Winding dimension inspection | |
Iron Core | 1. Physical and chemical test report for silicon steel sheet material |
2. Lamination burrs and paint film inspection | |
3. Dimensional inspection of laminated steel sheet | |
Frame | 1.Cold welding parts conformity certificate |
2. Finish machining inspection | |
Rotor | 1. Rotor core lamination inspection |
2. Conducting bar welding | |
3. Check the material, appearance, conductivity and size of the conducting bar end ring | |
4. Check the fastening of the conducting bars in the slots | |
5. Dimensional check, including iron core outer diameter | |
6. Dynamic balance correction | |
Shaft | 1. Raw material , annealing check |
2 Finish machining check | |
Stator | 1. Iron core compactness check |
2. Check iron core length and section length | |
3 Inserting winding check | |
4. Iron consumption check | |
Assembly | 1. Plain bearing size and surface quality check |
2. Check the size of the air gap, the coincidence of the axial centerline of the stator and rotor core, the gap of inner fan and windshield | |
3 Cleaning check inside the motor | |
4 Shaft center height and installation size check | |
Test | 1. Routine test |
2. Type test |
Each motor must be tested before leaving the factory. Only all the items are qualified, can the motor be delivered. Each motor will have a test report.
Routine test items Winding three-phase DC resistance Winding insulation resistance to ground Winding withstand voltage test No-load current No-load power No-load loss Three-phase no-load current imbalance Locked rotor current Locked rotor torque Maximum torque Rotation direction Vibration: horizontal, vertical, axial Noise … | Type test items Full load input power Full load current Stator winding loss Rotor winding loss Iron loss Mechanical loss Other losses Full-load slip ratio Stator winding temperature rise Bearing temperature Thermal winding insulation resistance Overload test Full-load power factor Efficiency ... |
Standard painting thickness: 120microns (40 micron priming paint + 80micron finish paint)
With professional certified painters, we can mix and paint any color according to your requirements.
Standard seaworthy package for export
Plywood package or wooden fumigation package
Suitable for long distance transportation by sea
Standard warranty: 12 months after commissioning, or 18 months after delivery, whichever comes first.
If you would like to extend the warranty period, please contact us for details.
