| Customization: | Available |
|---|---|
| Application: | Industrial, Universal |
| Operating Speed: | Constant Speed |
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YR series wound rotor three-phase asynchronous motor is an optimized series of products developed by our company after digesting and absorbing the design and manufacturing technology introduced from Westinghouse of America and LDW of Germany, and combining our more than 70 years of long-term stable design and manufacturing experience of high-voltage three-phase asynchronous motor, and can have YRKK and YRKS series according to different cooling methods to meet the requirements of different cooling methods.
This series motors can be widely used to drive many kinds of general-purpose machines, such as compressors, pumps, crushers, cutting machines, transportation machinery, coal mills, steel rolling mills, winches, belts, hoists and other heavy load machines. It is widely used in various industrial and mining industries such as mining, machinery industry, petrochemical industry, power plant, etc. as the prime mover.
1. The insulation level of this series motor is F grade, using the domestic first-class rubber less insulation system. Using high-quality mica tape, environmental protection impregnating resin paint, in the CNC winding machine, pulling machine and wrapping machine to complete the coil production, and finally by VPI vacuum pressure impregnation treatment. It is characterized by low normal dielectric loss, low high temperature dielectric loss, low leakage current of the whole machine, and very low voltage drop rate in thermal aging. Therefore, the coils are well made, with excellent and reliable insulation performance, good mechanical strength, and strong moisture resistance.
2. After absorbing and digesting the advanced technology at home and abroad, the company uses the "field and circuit" combination method for the 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 material use, 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 loss, and improve motor eff
Located in Changsha, Hunan province, Changli Electric Co., Ltd. (formally known as Changsha Motor Factory, which was founded in 1946), is a leading electric motor manufacturer among Top 10 industrial electric motor manufacturers in China.
With an investment of 1094 million yuan, the company covers an area of about 400mu (about 270,000m2), has over 600 sets of precision production equipment, with annual production capacity of 8,000 MW.
At present, we have over 350 employees, in which engineers and technicians accounting for 18%. With a strong technical research and development team and over 70 years' manufacturing experience, we can produce various kinds of low voltage motors, medium voltage motors and high voltage motors.
Our testing center is Hunan Medium and Small Sized Motors Quality Supervision Station, an authorized test station of China National Quality Inspection Center, is responsible for the quality supervision and sampling inspection of motor products of various motor manufacturers in Central and Southern China. We can test 40 series of high and low voltage motors.
Our products include standard motors, synchronous/asynchronous motors, high efficiency motors, premium efficiency motors, explosion proof motors, special motors, variable frequency speed regulation motors, ultra-high speed motors, submersible motors, wound rotor slip ring motors, permanent magnet motors, large-sized vertical circulating pump motors, etc.
Power range: 0.55KW ~20,000KW
Voltage range: 380V to 13.8KV
Shaft height: 80mm-1120mm
We have obtained such certifications as CE, CCC, EAC, ISO 9001, ISO 14001, ISO45001, etc. Our motor series comply with IEC, NEMA, GOST, ISO, IEEE, JIS, AS standards.
| Part | 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 |
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