Y/Yr Series Low Voltage Three Phase Induction Motor (IP23) 55kw-355kw

• Customization: Available
• Application: Industrial, Universal
• Operating Speed: Constant Speed
• Model NO.: Y280S-8-55kw
• Number of Stator: Three-Phase
• Species: Y/Yr Series LV Motors
• Rotor Structure: Squirrel-Cage
• Casing Protection: Closed Type
• Number of Poles: 2p-12p
• Starting Mode: Direct on-line Starting
• Certification: ISO9001, CCC, CE
• Rated Power: 55kw-355kw
• Frequency: 50Hz, 60Hz
• Voltage: 380V/400V
• Protection: IP23
• Cooling Method: IC01
• Rotation Direction: Cw/Ccw
• Insulation Class: F
• Temperature Rise: B
• Color: Can Be Customized
• Duty Type: S1
• Bearing Brand: SKF
• Mounting: Imb3
• Transport Package: Standard Seaworthy Packing
• Trademark: CHANGLI
• Origin: China
• HS Code: 8501530090
• Production Capacity: 500000

Product Description

Product Description

Y, YR280~355 (IP23) series small sized low voltage high power three-phase induction motor is the latest designed series motor. It has pleasant appearance, unique mode, some of its technical economy indexes have reached the international leading level. The products have been produced in a large volume and exported to more than 20 countries and regions,even all over the countries, they have got the good appraisal form the users.
This series products adopt the high quality materials, good manufacturing process, have the characteristics of high efficiency and energy-saving, small vibration, reliable operating and convenient for mounting and maintenance etc.
The power grade, electric property, mounting dimensions and tolerance are coincident with national standard GB755 Rotating Electric Motor Rating and Property, International Electrical Committee standard IEC34-1 Rotating Electric Motor Rating and Property, and machinery industry standards JB 5272-91, JB5269-91 etc.
The out cover protections of this series of motor is IP55 in accordance with the standard of GB4942.1 and IEC34-5 Enclosure Protection Levels of Rotating Electrical Machine.
The cooling method is IC01 in accordance with the standard of GB/T1993-93 and IEC34-6 Cooling Methods of Rotating Electrical Machine.
The structure and Installation method of this series of motor is IMB3 (horizontal with footing, end cover without flange ), IMV1(shaft extension downwards and lower end cover with flange), and complies with the specifications of GB997 and IEC 34-7 Motor Structure and Mounting Cope Type.
This sample table lists the technical data and installation sizes of 380V grade series motor, and may derive the 440V and 660V grade motors in all sizes.

Application Scope 
This series of motor may be used for driving all kinds of general machines such as the compressor, ventilation fan, water pump, stock-removing machine, transportation machines and other mechanical equipment, and are applied as the prime mover in all industrial and mining enterprises such as the mine, machinery, petrochemical industry and power plant etc, if the users place an order for the motors that are used to drive the machines with huge rotary inertia such as the blower, coal grinder, rolling machine, crusher, belt machine, etc, they shall provide us with relevant technical data, sign the technical agreement with us as the basis for specific design of motor to ensure the reliable operation of motor.
The YR (IP23) series electric motor is capable of providing relatively large locked rotor torque under relatively small locked rotor current, and regulating speed within limits. It apply to the following situations extensively: (1) The larger locked rotor torque is required than squirrel cage type motors; (2) The capacity of transmitting line is insufficient to start squirrel cage type electric motor; (3) Long starting time and frequent starting; (4) The speed regulation is required within small range; (5) Synchronous rotation with Electrical Axis.formed by unity. Such as: compressor, presser, winch, bedrench, conveyor, printing machine etc.
Normal operation conditions for motor:

1. Sea level is not over 1000m;
2. The highest ambient temperature is not over 40ºC, The lowest ambient temperature is -15ºC;
3. In moist month, the monthly overage highest relative humidity is 90%, at the same time, the monthly overage lowest temperature is not over 25ºC;
4. The frequency of power source is 50Hz±l%;
5. The variation of work voltage is not over rated voltage±5%;
6. Motor rating is continuous operation system SI.

Construction Description
The frames and end-shields of this series motors adopts high rigidity casting iron, the stator employs the externally pressing structure. Stator winding (H315, 355) consists of flat copper formed hard coil or circular copper formed random coil. It employs class B or F insulating materials. the fixing of winding terminals employs the special binding process, fixed and reliable. The whole stator is treated by the vacuum pressure impregnation (VPI) F solventless paint. Thus, the motor has the excellent and reliable insulation performance, damp-proof and shock resistance.
The squirrel cage rotor in this series motor mostly adopts cast aluminum rotor, running reliable. The wound rotor employs the F-level insulation material and uses the vacuum pressure impregnation F-level solventless paint (VPI) for treatment.
The motor employs the rolling bearing structure and the basic protection class is IP23.
The motor (315~355) has the special oil filling tools may be used for filling and exhausting the oil without stopping the machine.
The main terminal box employs the sealed structure, and the protection class is IP54. They are generally installed in the right side of motor (view facing shaft end of the electric motor). It also can be installed in the left side of motor according to the requirement of users. The box has the separate grounding terminals.

Starting of Squirrel Cage Type Induction Motor
The squirrel cage rotor of induction motor has adopted the advanced computer technique to calculate the starting temperature and pressure of the squirrel rotor, thus avoid the motor's destroy at an early period because of the motor's overloaded while starting. So we suggest users to check the items as below:

1. The moment of inertial (after being converted to motors rotating speed) of the rotating part of the driven mechanical equipment should not over these values of (loading J) item shown in the technical table;
2. Customers should guarantee the voltage of electric network across the motor's terminals not lower than 85% of the rated value during starting;
3. The resistance moment feature of driven machines is the resistance moment feature of water pump and fan.

Under the above mentioned conditions, motor may be permitted to be started at actual cold condition for twice continuously, or at hot condition for once, the interval of two times starting is natural stoppage. If there is need to start over above limit, it must wait for one hour.
If the moment of inertia of the mechanical rotating part of the machinery being drive is over the value shown in (loading J) item of technical data, or there is a requirement to start motor frequently, or it is possible to start the motor under heavy loading, it is necessary to contact with our company for negotiating about specific design so as to ensure the reliable start-up of motor.

Certifications

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.

 

Packaging & Shipping

Standard seaworthy package for export
Plywood package or wooden fumigation package
Suitable for long distance transportation by sea

Company Profile

Located in Changsha, central China's Hunan province, Changli Electric Co., Ltd., a subsidiary of Changli Group, which was formally known as Changsha Motor Factory founded in 1946, is a leading electric motor manufacturer among Top 10 industrial electric motor manufacturers in China. With over 70 years' production experience and research and development capabilities, we can produce a wide range of motors. After years' development, we have several branches, offices and marketing centers around the country.
With an investment of 1094 million yuan, the company covers an area of 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.

Our Advantages

Wide power range available
Excellent starting performance
Available to all industry segments and applications in global supply
Highest reliability to minimize operation cost from downtime
High flexibility with customizable design
Support  to witness FAT on site/online 

Quality Control

In-process Inspection/ Quality Control
All the measuring apparatus and instruments are calibrated each year.
Quality control for each item

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

Test

Each motor must be tested before leaving the factory. After the motor is qualified, the motor can be shipped out. 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

After Sales Service

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.