YX3 Series High-Voltage Asynchronous Motor — Product Introduction

Product series: YX3 series motors
Voltage range: 3 kV – 11 kV
Power range: 160 kW – 1600 kW
Center height range: H315 – H500
Mounting arrangement: Horizontal
Number of poles: 2 – 12 P
Cooling method: IC411 / IC416
Operating modes: DOL (Direct-On-Line starting) / VSD (Variable Speed Drive)
Insulation & temperature rise: Class F insulation, evaluated with Class B temperature rise
Standards: IEC & GB755

Product Overview

The YX3 series is a new-generation high-voltage asynchronous motor developed by our company for medium- and high-voltage industrial drive applications. It is specially optimized for various load conditions such as fans, pumps, compressors, and belt conveyors in industries including metallurgy, power generation, chemical processing, water conservancy, and municipal engineering.

By combining mature engineering experience with modern simulation tools in electromagnetic design, thermal management, mechanical strength, and manufacturing processes, the YX3 series delivers a high-efficiency, reliable, and easy-to-maintain power solution.

Key Technical Features

High-efficiency electromagnetic design
Low-loss silicon steel, optimized slot geometry, and winding configuration reduce iron and copper losses, significantly improving operating efficiency and lowering overall system energy consumption.

Optimized thermal design and cooling
Optional IC411 / IC416 cooling systems, combined with CFD-based thermal simulations and localized enhanced cooling, ensure controlled temperature rise and stable service life during long-term full-load operation.

Suitable for both VSD and DOL operation
Supports both variable-speed drive and direct-on-line starting. Under VSD operation, the motor offers excellent torque control and grid compatibility, enabling energy savings and operating point optimization.

Robust mechanical construction
The shaft system, end shields, and bearing housings are verified through finite element analysis for strength and vibration. High dynamic balance accuracy ensures stable performance during starting and sudden load changes.

Reliable insulation system
Class F insulation materials with Class B temperature rise assessment provide a balance between long-term insulation reliability and extended maintenance intervals.

Modular design and easy maintenance
Key components adopt a modular structure, facilitating on-site maintenance and spare parts replacement, reducing downtime and overall maintenance costs.

Applicable Industries and Typical Loads

Industries:
Metallurgy, thermal power / hydropower / cogeneration plants, power systems, chemical and petrochemical industries, water conservancy, and municipal engineering.

Typical loads:
Fans (induced draft / primary air / forced draft), circulating water pumps, feedwater pumps, compressors, belt conveyors, material handling systems, and various industrial drive equipment.

Advantages and Customer Value

High efficiency and energy savings
Lower energy consumption compared with similar products under common operating conditions, helping users reduce operating costs and shorten payback periods.

High reliability
Strict design and manufacturing processes with comprehensive testing—including temperature rise, vibration, and dynamic balance—make the motor suitable for continuous heavy-duty operation.

Low vibration and low noise
Optimized structure and balancing reduce mechanical noise, improving system reliability, operating comfort, and service life.

Easy maintenance
Modular structure and standardized spare parts strategy shorten maintenance time and reduce complexity and inventory pressure.

Strong compatibility
Covers a wide range of voltages and center heights, easy to integrate with existing equipment and systems, and well suited for variable-frequency energy-saving retrofits.

Quality Control and Testing

The YX3 series is manufactured under a strict quality management system in accordance with international standards. Each motor undergoes comprehensive factory testing, including but not limited to:
high-voltage withstand and partial discharge tests, no-load and load tests, temperature rise tests, vibration and noise measurements, dynamic balance verification, and VSD integrated testing.

Complete test reports and technical documentation are provided, with support for customer witness testing when required.

Service and Delivery

We offer complete motor supply, electromechanical package solutions, and on-site installation and commissioning services. Variable-frequency drive solutions, soft starters, and energy recovery system integration can be provided upon request.

A comprehensive after-sales service network and spare parts support are available. For project applications, we provide spare parts lists, maintenance manuals, and technical training to ensure long-term stable operation.

Selection and Customization

The YX3 series features strong versatility. For special operating conditions—such as high humidity, heavy dust, high ambient temperature, frequent starts, or non-standard speeds—customized solutions are available, including higher protection ratings, anti-corrosion treatments, special cooling systems, and additional temperature or vibration monitoring points.

Please provide specific operating parameters (load type, speed, rated power, voltage, installation space, and environmental conditions). Our team will deliver a matched technical specification and engineering quotation.