WEG Synchronous Motors for Reciprocating Compressor Applications

Reciprocating compressors are vital components in many industrial processes, used for compressing gases in industries such as oil and gas, chemical processing, and refrigeration. These applications require motors that provide dependable operation, precise control, and robust performance.

WEG Electric Machinery (WEM) has over a century of experience in designing, manufacturing, and servicing large synchronous motors, making them a trusted partner for reciprocating compressor applications. WEG's synchronous motors are designed to meet design parameters from compressor manufacturers and on-site electrical requirements, ensuring seamless integration and optimal performance.

1. Drop-in (Modular) Core Design

• WEG's synchronous motors feature a drop-in core design, allowing for easy installation and compatibility with existing infrastructure. This modular approach ensures a perfect fit, reducing downtime and installation costs.

2. Brazed Rotor C-Coils

• The motors utilize brazed rotor c-coils, enhancing durability and resistance to mechanical stress. This construction ensures long-lasting performance, even in demanding applications. Learn more about WEG's advanced rotor technology.

3. Higher Excitation Capability

• WEG's synchronous motors offer higher excitation capability, providing better control and performance in reciprocating compressor applications. This feature ensures smooth operation and enhanced efficiency.

4. Components Designed for Manufacturability

• The components of WEG's synchronous motors are designed for manufacturability, ensuring consistent quality and reliability across all units. This design philosophy enhances the overall performance and longevity of the motors.

1. Higher Efficiency

• Synchronous motors are known for their high efficiency, often 1-2% more efficient than induction motors. This efficiency translates to lower energy consumption and reduced operational costs.

2. Power Factor Correction

• WEG's synchronous motors can operate at leading power factors, providing reactive power (VARs) to the power system. This capability reduces demand charges often caused by induction motors, leading to significant cost savings.

3. Constant Speed Operation

• The speed of synchronous motors is unaffected by line or load conditions, providing greater operating flexibility and stability. This constant speed operation is essential for reciprocating compressors, ensuring consistent performance.

4. Compliance with Industry Standards

• WEG manufactures synchronous motors to meet all current industry standards, including NEMA MG 1, IEEE 115, IEC 60034/60079, API 546, and ISO 9001:2000. Compliance with these standards ensures that WEG's motors deliver reliable performance and safety. Explore WEG's compliance with industry standards.

5. Operation in Hazardous Areas

• WEG's synchronous motors can be built for operation in classified hazardous areas, meeting NEC or IEC/EN (ATEX) requirements. The standard brushless excitation system is non-sparking, ensuring safety in hazardous atmospheres.

Oil and Gas Industry 

In the oil and gas sector, reciprocating compressors are used for compressing gases at various stages of production and processing. WEG's synchronous motors provide the reliability and efficiency needed to drive these compressors, reducing downtime and enhancing productivity.

Chemical Processing 

Chemical processing facilities require precise control and consistent performance from their reciprocating compressors. WEG's synchronous motors deliver the accuracy and stability needed to maintain optimal processing conditions, enhancing product quality and efficiency.

Refrigeration and HVAC 

In refrigeration and HVAC systems, reciprocating compressors play a crucial role in maintaining temperature control. WEG's synchronous motors provide the constant speed and efficiency needed to drive these systems, ensuring reliable operation and energy savings.

1. Duraguard™ Insulation System

• The Duraguard™ insulation system used in WEG's synchronous motors offers Class F thermal capability, superior moisture and chemical resistance, and outstanding dielectric properties. This system ensures long-lasting performance and reliability in harsh environments.

2. Sync-Rite™ Brushless Excitation

• WEG's Sync-Rite™ system provides automatic field application at the proper rotor angle, ensuring smooth synchronization and eliminating the need for periodic brush maintenance. This innovation enhances the reliability and efficiency of the motors.

3. Advanced Rotor and Stator Construction

• WEG's synchronous motors feature advanced rotor and stator construction, providing low vibration and smooth operation. The factory balancing ensures minimal vibration, reducing wear and extending the lifespan of the motors. Discover WEG's rotor and stator technology.

WEG's synchronous motors offer a unique combination of efficiency, reliability, and technological innovation, making them the ideal choice for reciprocating compressor applications across various industries. Their ability to provide constant speed, power factor correction, and high efficiency ensures that they deliver exceptional performance and cost savings.

By choosing WEG's synchronous motors, you're investing in a future of enhanced productivity, reduced costs, and sustainable operations. Explore our range of products and discover the benefits that WEG can bring to your reciprocating compressor applications.