Designed for medium- and high-voltage applications, the motors with the new frame size offer excellent performance with efficiency levels up to 97.4%. These motors maintain low maintenance and operating costs. Therefore, they are an ideal solution for applications characterized by harsh environmental conditions, where a high degree of reliability and robustness is required without compromising energy efficiency.
One reason for the motor's high efficiency is its innovative stainless steel tubular cooling system (IEC 60034-6 IC511), which provides optimal airflow and maximum cooling capacity for the stator, rotor, and critical components such as the bearings. Furthermore, the aerodynamic design of the fans and vent caps generates effective airflow with minimal noise. Hot spots are also prevented throughout the housing, contributing to high and reliable performance over a long service life.
The W22X 800 motors offer users maximum flexibility, as they are available with numerous mounting options, including the standard IM B3 model with various mounting positions and terminal box configurations, as well as a welded steel frame that is resistant to bending and meets IP55 protection standards, and large integrated mounting feet. The robust housing allows the explosion-proof motors to be used in the most demanding applications and minimizes vibration and noise emissions.
The W22X 800 motor is available in 2, 4, 6, and 8-pole versions and, upon request, with different speeds. Its rated power ranges from 2 MW to 5.6 MW with supply voltages between 6.6 kV and 11 kV at 50 Hz or 60 Hz. Motors of this size would normally be custom-designed, but WEG now offers a standard product with multiple optional modules to meet growing demand. The motor itself can be easily customized and optimized for specific applications. It can also be adapted to different temperatures (from 55 °C to 60 °C), protective devices (surge protectors, capacitors, inverters), terminal boxes (number, position, and type), protection ratings (IP56, IP65, or IP66), or variable speed drives.
“WEG is committed to helping companies in sectors such as oil and gas and mining increase reliability and energy efficiency and reduce maintenance and operating costs,” says Marek Lukaszczyk, Marketing Manager for Europe and the Middle East at WEG, and continues: “The new W22X 800 motors are the latest addition to the W22X family of explosion-proof motors, which have been designed to meet the requirements of the most demanding applications without compromising energy efficiency.”
The entire WEG W22X product range is available worldwide and meets the most important international standards. For example, the W22X 800 is already ATEX and IEC Ex certified for Ex d(e) IIB T4 Gb, for mining (Group I) and conductive dust (Group III), and is currently pursuing Ex d(e) IIC T4 Gb certification, along with several regional certifications, including GOST, CCOE, and INMETRO. With the broad W22X portfolio in frame sizes from IEC 71 to IEC 800, WEG has an ideal explosion-proof motor solution for virtually any situation, from gas pipelines in the Arctic to drilling rigs in the hottest regions of the Arabian Desert.
