Y Series IE4 Premium Efficiency Rib-Cooled High-Voltage Motors

Y Series IE4 Premium Efficiency Rib-Cooled High-Voltage Motors

The YK Series high-voltage motors feature at the innovative external rib-cooled design. Through optimized rib layout and airflow channel planning, the natural convection cooling efficiency is significantly enhanced. The series covers rated voltages of 6 kV and 10 kV, with the power ranging from 160 kW to 3150 kW. Combining the advanced of the electromagnetic simulation technology and the reinforced insulation processes, this product achieves the GB30254 Grade 2 Efficiency Standard (IE4 Equivalent) within the compact structure, balancing high efficiency with high reliability. The rib-cooled design not only improves cooling performance but also results in the cleaner appearance, easier install-ation and simpler maintenance, making it work at high-performance alterna-tive to traditional cooling methods

The Y Series IE4 rib-cooled high-voltage asynchronous motors feature an innovative external rib cooling design, combining efficient heat dissipation with a compact footprint. This series is suitable for various industrial drive applications, ensuring operational reliability while enhancing energy efficiency to meet the demands of modern industry for high-performance, energy-saving power solutions.

Key Features

The YK Series high-voltage motors feature an innovative external rib-cooled design. Through optimized rib layout and airflow channel planning, natural convection cooling efficiency is significantly enhanced. The series covers rated voltages of 6 kV and 10 kV, with a power range from 160 kW to 3150 kW. By integrating advanced electromagnetic simulation technology with reinforced insulation processes, this series achieves the GB30254 Grade 2 efficiency standard (IE4 equivalent) within a compact structure, balancing high efficiency with high reliability. The rib-cooled design not only improves thermal performance but also results in a cleaner aesthetic, easier installation, and simpler maintenance, offering a high-performance alternative to traditional cooling methods.
Efficient Rib-Cooled Heat Dissipation:​ The innovative external rib design, with its scientifically optimized layout, increases the effective cooling surface area, significantly boosting natural convection efficiency. This eliminates the need for separate coolers or fans, simplifying the overall system.
High Energy Efficiency:​ Meets the GB30254 Grade 2 efficiency standard (IE4 level). Utilizing optimized electromagnetic design and low-loss materials, it maintains high efficiency across a wide load range, leading to substantial reductions in long-term energy consumption and electricity costs.
Compact and Lightweight Design:​ The integrated rib-cooled construction makes the motor more compact. Compared to traditional high-voltage motors of equivalent power, it offers an average volume reduction of approximately 15% and a weight reduction of about 10%, saving installation space and facilitating transportation and layout.
Easy and Economical Maintenance:​ The smooth external ribbed surface resists dust accumulation and is easy to clean. The absence of complex cooling piping systems reduces the complexity and long-term cost of routine maintenance.
Strong Environmental Adaptability:​ The totally enclosed design achieves an IP54 protection rating, making it suitable for typical industrial environments with dust or moisture. Its robust construction and good vibration resistance ensure stable operation under various working conditions.

Technical Specifications

Power Range:​ This series covers a rated power range from 160 kW to 3150 kW. It offers flexible power configurations to meet diverse drive requirements, from medium-sized equipment to large industrial installations, making it suitable for various applications in industries such as power generation, chemical processing, metallurgy, and building materials.
Rated Voltage:​ Supports two high-voltage levels: 6 kV and 10 kV. This compatibility with mainstream industrial high-voltage grid standards facilitates equipment selection and system integration, meeting drive needs under different voltage conditions.
Efficiency Class:​ Fully meets the GB30254 Grade 2 energy efficiency standard, with select models achieving Grade 1 efficiency. Utilizing high-efficiency electromagnetic design and premium materials, it maintains high efficiency across a wide load range, significantly reducing operational energy consumption.
Power Factor:​ Offers a power factor range of 0.88–0.91. This high power factor performance effectively reduces reactive power loss on the grid, improving power supply quality, making it suitable for industrial applications with stringent grid quality requirements.
Protection Level:​ Features IP54/IP55 protection ratings. The totally enclosed structure effectively prevents the ingress of dust and water jets, enabling stable operation in generally harsh environments like dusty or humid conditions, and adapting to various industrial settings.

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Motor Selection Guide and FAQ

Motor Selection Guide
1. Define Basic Parameters
Power & Speed:​ 
Determine the required rated power based on load characteristics and define the motor pole count and speed range according to your equipment’s operational speed.
Voltage & Frequency:​
Confirm your power supply standard (e.g., 380V/50Hz, 480V/60Hz). Custom designs are available for special voltage requirements.
Mounting Type:​
Specify IEC standard mounting (e.g., B3, B5, B14). Custom the flanges & bases are also supported.
2. Consider Operating Environment
Protection Rating (IP):​
IP55 for standard environments. IP65 is recommended for damp or dusty conditions. Hazardous areas require Ex D/Ex E certifications.
Insulation Class:​
Class F (155°C) for general use. Class H (180°C) insulation is advised for high-temperature environments.
Cooling Method:​
Self-ventilated (IC411) for standard applications. Forced air or water cooling is available for enclosed spaces or high-power-density scenarios.
3. Match Load Characteristics
Starting Torque:​
Consider starting torque for fan/pump loads. Verify locked-rotor torque for conveying equipment.
Duty Cycle:​
Standard motors are suitable for continuous operation (S1). Frequent start-stop cycles (S5) require reinforced bearings and insulation.
Efficiency Requirement:​
Select IE3/IE4/IE5 efficiency classes based on annual operating hours. Ultra-premium efficiency (IE5) motors offer the lowest total cost of ownership for long-running applications.
Get Your Custom Solution & Fast Quote. Our Engineers Are Ready to Help.
Contact Us for the Precise Solution
Provide your equipment parameters, load profile, environmental conditions, and application details.
Receive the complimentary motor selection calculation, the energy efficiency analysis report, and the 3D model.
We support sample testing and operational simulation for validation.

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