WGM20 Line Three-Phase Induction Motors Water Jacket Cooling System.

WGM20 Line Three-Phase Induction Motors Water Jacket Cooling System. The WGM20 line of three-phase induction motors is the perfect choice for challenging environments, offering the ideal solution for locations with limited space. Its ability to operate at low and medium voltage, combined with high power in a compact design, makes it an efficient and versatile solution.

These motors use a water jacket cooling system, supplying exceptional efficiency, low noise levels, and reduced maintenance costs, making inspection and cleaning more convenient than ever.

Cooling System
The water jacket cooling system consists of a water flow in a “zigzag” circuit throughout the frame, which makes the channel cleaning operation easier. This cooling system has a proper degree of protection suitable for aggressive, reduced-space, or high-temperature environments. The thermal exchange of the motor does not depend on the environment and allows several torque combinations with motor speed.

Design

Designed with state-of-the-art technology by R&D and engineering specialists with the application of superior raw materials and modern software, the WGM20 motors are suitable for industrial and marine
applications. Its modern concept resulted a high performance and reliable product even under the most severe operational conditions. This motor line can be supplied with Marine Certification such as Lloyds, Bureau Veritas, ABS and DNV.

Protected Accessories
The WGM20 motor was designed in such a way to keep all accessories protected inside the motor, which makes the line more solid. Although accessories are assembled inside the motor, they are easily accessed for maintenance.

Water Type
The water cooling channels are suitable to operate with treated industrial water and meet the majority of the water specifications available in the industry. The design flexibility and robustness of WGM20 motor allow operation with several water inlet temperatures and multiple types of additives, such as antifreeze, anticorrosive, among others.

Bearings
Grease lubricated bearings have a grease storage system that does not require to remove the old grease at each lubrication interval. Another feature is that the DE and NDE bearings are the same, reducing the amount of replacement parts in stock. As standard, the life (L10 nm) of the bearing is 80,000 hours. Other optional features, such as sleeve bearings, on request.

Terminal Box
The T-box design allows the motors to be assembled in places with reduced height, with the terminal box near the ceiling. Another benefit of this T-box design is the way it is attached to the frame,
where it is possible to rotate it for horizontal motors by 180° and for vertical motors by 90°.

Winding and Insulation System
The winding process is specially designed and specified according to the rated voltage and the motor application. Motor coils are produced with rectangular copper wire, preformed and completely insulated with mica-based porous tape. Conducting and semiconducting tapes are also used for the winding process, wrapping the coils and ensuring proper characteristics to the required insulation level. The insulation system is based on the Vacuum Pressure Impregnation (VPI) process. Using epoxy resins, this system ensures proper winding insulation in a process totally free of gas emission, which are harmful to the environment. The insulation system is applied to LV and HV machines from 380 to 15,000V.

Suitable for VFDs
The WGM20 motor is suitable for VFD applications