Ypkk Series MV/HV Three-Phase Variable Frequency Induction Motor

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YPKK series motors

Description

Basic Information

Item	Details	Item	Details
Model No.	YPKK900	Brand	Changli
Series	YPKK Series	Rated Power	Up to 20,000 kW
Phase	Three-Phase	Frequency	50 Hz / 60 Hz
Rotor Structure	Squirrel-Cage	Voltage	3 kV / 3.3 kV / 6 kV / 6.6 kV / 10 kV / 11 kV / 13.8 kV
Casing Protection	Closed Type	Protection Class	IP44 / IP54 / IP55
Number of Poles	2–16 Poles	Cooling Method	IC666 / IC611 / IC616
Starting Mode	Direct On-Line (DOL)	Mounting	IMB3
Certification	ISO 9001, CCC, CE	Rotation Direction	CW / CCW
Insulation Class	Class F	Frame Size	355–1120 mm
Duty Type	S1 (Continuous)	Frame Material	Carbon Steel
Bearing Brand	SKF	Color	Customizable
Manufacturing Standard	IEC Standard	Origin	China
HS Code	8501530090	Production Capacity	500,000 Units/Year
Transport Package	Standard Seaworthy Packaging	Trademark	CHANGLI

Product Description

The YPKK series high-voltage three-phase asynchronous motors (frame size H355–1120) feature a rational structural design and advanced manufacturing technology. They offer the advantages of high efficiency, energy savings, low noise, low vibration, reliable operation, and easy installation and maintenance.

The motor's power ratings, mounting dimensions, and electrical performance comply with the national standard GB 755-2000 "Rotating Electrical Machines – Rating and Performance", relevant IEC standards, and the national industry standard JB/T 10314.2-2002.

Operating Environment:

Altitude: Not exceeding 1,000 m above sea level
Ambient air temperature: Not exceeding 40°C
Free from serious dust, corrosive gases, and explosive gases
Custom versions available for hot/humid zones and plateau areas upon request
Key Structural Features:
Box-type welded steel frame – lightweight with excellent rigidity
Top-mounted closed air-to-air cooler – easy to disassemble for maintenance and repair
External pressure-mounted stator with F-class insulation materials; windings are securely fixed and tied, and undergo multiple turn-to-turn impulse voltage and ground withstand voltage tests during manufacturing
VPI (Vacuum Pressure Impregnation) solvent-free paint treatment using advanced German equipment, ensuring excellent insulation properties, strong mechanical strength, and superior moisture resistance
Copper-bar squirrel-cage rotor manufactured with advanced welding technology and verified through dynamic balancing for smooth, reliable operation
Bearing options: Rolling bearings or sliding bearings, selected based on motor power and speed
VFD speed control with a speed regulation range of 5–50 Hz; standard rated voltages of 6/10 kV; protection levels of IP44/IP54/IP55. Other voltages, frequencies, and protection levels can be customized per customer requirements.

Our Advantages

Wide power range – up to 20,000 kW to meet diverse application needs
Excellent starting performance – reliable direct-on-line starting
Global applicability – suitable for all industry segments worldwide
Highest reliability – minimizes operational costs caused by downtime
High flexibility – fully customizable design to match specific requirements
FAT support – witness Factory Acceptance Testing on-site or online

Quality Control

In-Process Inspection & Quality Control
All measuring apparatus and instruments are calibrated annually. Every component undergoes strict quality inspection:

Part	Inspection Items
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 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 inspection 3. Material, appearance, conductivity, and size check of end rings 4. Fastening check of conducting bars in slots 5. Dimensional check (including iron core outer diameter) 6. Dynamic balance correction
Shaft	1. Raw material and annealing check 2. Finish machining check
Stator	1. Iron core compactness check 2. Iron core length and section length check 3. Winding insertion check 4. Iron consumption check
Assembly	1. Plain bearing size and surface quality check 2. Air gap, axial centerline coincidence, and inner fan/windshield gap check 3. Internal cleaning check 4. Shaft center height and installation size check

Testing

Every motor is tested before leaving the factory. A test report is provided for each qualified unit.

Routine Test Items:

Winding three-phase DC resistance
Winding insulation resistance to ground
Winding withstand voltage test
No-load current, no-load power, and no-load loss
Three-phase no-load current imbalance
Locked rotor current and locked rotor torque
Maximum torque
Rotation direction
Vibration (horizontal, vertical, axial)
Noise level
Type Test Items:
Full-load input power and full-load current
Stator and rotor winding losses
Iron loss and 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 & Shipping

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

After-Sales Service

Standard warranty: 12 months after commissioning, or 18 months after delivery, whichever comes first
Extended warranty periods are available upon request – please contact us for details