Audited Supplier
With the development of electric power technology, AC frequency conversion speed control system is also developing rapidly. In order to meet the needs of the market, our company has developed YSP/YVF series frequency-controlled three-phase asynchronous motors based on extensive research and collection of relevant information at home and abroad. The performance indexes and technical conditions of the motors are in accordance with IEC34-1, GB755 and IB/T 71.8-2014 international and national standards. The motors are characterized by low noise, low vibration, wide speed adjustment range and novel appearance, and can be used with various kinds of frequency conversion devices at home and abroad. It helps to save energy and realize automatic control.
Features: beautiful appearance, high efficiency and energy conservation, Class F insulation, protection level IP55, low noise, low vibration, reliable and stable operation.Technical Specifications
Frame size: 80 ~ 355mmPower: 0.75-315KW
Number of poles: 2P, 4P, 6P, 8P,10P
Duty type: Continuous working system (S1)
Rated voltage: 380V
Rated frequency:50Hz,60Hz
Protection level: IP55
Mounting: B3,B5,B14,B35
Cooling mode: IC416
Constant torque speed control frequency range: 5~50Hz; constant power speed control frequency range: 50~60Hz (for 2-pole motors), 50Hz~75Hz (for 355-4 motors), 50Hz~100Hz (for 4, 6, 8, 10-pole motors other than 355-4).
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.
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 and high voltage motors.
Our test 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.
Our test products cover 40 series of high and low voltage motors. Our products include standard motors, synchronous/asynchronous motors, high 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
Raw Materials
Frame: Cast iron, steel
Stator: Copper
Rotor: Copper/aluminum
Shaft: ASTM1045 Steel
Bearing: SKF or equivalent Chinese brands
In-process Inspection/ Quality Control
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 |
Test Items
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 ... |
Packaging &Paintings
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
Warranty Period
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.
