Tk1250-18-1730 Compressor Use Large Sized Synchronous Motor, 1250kw, 18-Pole

• Customization: Available
• Application: Industrial
• Operating Speed: Constant Speed
• Model NO.: TK1250-18-1730
• Magnetic Structure: Salient Pole
• Function: Driving, Control
• Structure: Rotating Pole Type (Armature Fixed)
• Ventilation: Open Type
• Certification: CCC, ISO9001
• Rated Power: 250kw-10000kw
• Frequency: 50Hz/60Hz
• Voltage: 3000V, 3300V, 6kv, 6.6kv, 10kv, 11kv
• Protection: IP00, IP20, IP23, IP44
• Cooling Method: IC01, IC37, IC81W
• Mounting: Im7311, Im5710, Im7312, Im7315
• Rotation Direction: Cw/Ccw
• Connection: Y
• Bearing: Plain Bearing/Rolling Bearing
• Insulation Class: F
• Temperature Rise: B
• Altitude Above Sea Level: 1000m
• Duty Type: S1
• Color: Customized
• Temperature: up to 50
• Transport Package: Standard Seaworthy Packing
• Trademark: CHANGLI
• Origin: China
• HS Code: 8501530090
• Production Capacity: 500000

Product Description

I. Overview 

TK series of large three-phase synchronous motors for air compressors are high-performance series products specially designed and developed by our company for air compressors.
This serie of motors adopt new technology, new materials, new process, and is carefully selected and well-made. It has the characteristics of small size, light weight, beautiful shape, high efficiency, low noise, low vibration, safe and reliable operation, and easy use and maintenance.

2. Implementation standards
IEC60034-1 Rotating Electrical Machines - Part 1: Rating and Performance
IEC60034-7 Rotating Electrical Machines - Part 7: Classification of Types of Construction, Mounting Arrangements and Terminal Box Position (IM Code)
IEC60034-8 Rotating Electrical Machines - Part 8: Terminal Markings and Direction of Rotation
IEC60034-6 Rotating Electrical Machines - Part 6: Classification of Cooling Methods (IC) Code
IEC60072-1/IEC60072-2 Dimensions and Output Series for Rotating Electrical Machines - Part 1: Frame Numbers 56 to 400 and Flange Numbers 55 to 1080/ Part 2: Frame Numbers 355 to 1000 and Flange Numbers 1180 to 2360
IEC60034-5 Rotating Electrical Machines - Part 5: Degrees of Protection Provided by the Integral Design of Rotating Electrical Machines (IP code) - Classification
IEC60034-14 Rotating Electrical Machines - Part 14: Mechanical Vibration of Certain Machines with Shaft Heights 56mm and Higher - Measurement, Evaluation and Limits of Vibration Severity
IEC60034-9 Rotating Electrical Machines - Part 9: Noise Limits
IEC60034-11 Rotating Electrical Machines - Part 11: Thermal Protection
IEC60034-2 Rotating Electrical Machines - Part 2-1: Standard Methods for Determining Losses and Efficiency from Tests
IEC 60034-18-1 Rotating Electrical Machines - Part 18-1: Functional Evaluation of Insulation Systems - General Guidelines
IEC 60085 Electrical Insulation - Thermal Evaluation and Designation
ISO 281 Rolling Bearings - Dynamic Load Ratings and Rating Life
GB14711-2016 General Requirements for Safety of Small and Medium Size Rotating Electrical Machines
JB/T 8667.1 Technical conditions for large three-phase synchronous motors Part 1: TK series


3. Basic technical parameters
Power range: 250~10000kW
Rated voltage: 6000, 10000V
Rated speed: 250, 273, 300, 333, 375, 428, 500, 600r/min
Rated frequency: 50Hz
Protection degree: IP00, IP20, IP23, IP44
Insulation level: F
Rating: S1
Cooling method: IC01, IC37, IC81W
Installation method: IM7311, IM5710, IM7312, IM7315
*Other parameters can be manufactured according to user needs

4. Technical features
4.1 The structural design is reasonable, safe and reliable, and the ability to re-step after out of step is strong.
4.2 The main insulation structure using new insulation materials has high voltage withstand performance and long motor life.
4.3 Large temperature rise margin. The motor adopts F-class insulation, and the temperature rise is assessed according to the temperature rise limit of B-class insulation.
4.4 The protection device is advanced and complete.
4.4.1 The stator winding and bearing are equipped with temperature detection devices, which can monitor, alarm and trip.
4.4.2 Anti-condensation shutdown space heater.
4.5 Large moment of inertia. Motors with different rotational inertia can be produced according to user needs.

5. Structural type
5.1 The overall structure of this series of motors is welded with steel plates for the base, end shield, bottom plate, etc. The motor is an independent cavity, and the slip ring can be designed with different protection levels according to user needs.
5.2 Stator: The stator base is welded with steel plates. The motor stator output line is led out with high-voltage rubber cable. The output line can be led out from the bottom of the base or from the main terminal box on the side of the motor.
The stator core is made of low-loss silicon steel sheets, and the core sections are separated by radial ventilation ducts.
The stator winding is F-class insulation, and the temperature rise is assessed according to B-class to extend the service life. VPI overall varnishing treatment is adopted, which has high electrical performance, mechanical strength, insulation performance, moisture resistance and thermal stability.
5.3 The rotor pole core is made of laminated steel plates, with different structures such as pole screw and T-tail. The rotor bracket has ventilation holes and is equipped with a fan, which can control the rotor temperature rise well.
5.4 Seat-type spherical sliding bearings are adopted. The bearings are insulated to prevent shaft current.
New lubricating oil and thin-walled bearing alloy bushings are adopted, and electromagnetic centerline marks are set.
5.5 According to user needs, the slip ring can be designed as a positive pressure ventilation structure to increase the safety of the motor. The total length of the motor with positive pressure ventilation structure of the collector ring is slightly increased.

6. Use conditions
6.1 Voltage fluctuation: ±5% (can operate under ±10% conditions under 7.3 of GB755)
6.2 Frequency fluctuation: ±2%
6.3 Altitude does not exceed 1000m.
6.4 The maximum ambient temperature does not exceed +40ºC

3. Raw Materials
Frame: Cast iron, steel
Stator: Copper
Rotor: Copper/aluminum 
Shaft:  45# Steel
Bearing: SKF, or equivalent 

4. 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

5. Test Items
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

6. Packaging and Painting 
Standard seaworthy package for export
Plywood package or wooden fumigation package
Suitable for long distance transportation by sea

Standard painting thickness: 120microns (40 micron priming paint and 80micron finish paint)
With professional painters, we can mix and paint any color according to your choice.



7. 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.