New Large Explosion-proof W22X Motors with High Efficiency

WEG, a leading global manufacturer of drive technology, has added a larger IEC 800 frame size model to its energy-efficient W22X series of explosion-proof motors to meet the needs of the most demanding energy-intensive applications, for example in the oil and gas industry. Designed for medium-voltage and high-voltage applications, the new frame size motors deliver excellent performance with an efficiency of up to 97.4% and ensure low maintenance and operating costs, making them ideal for applications where harsh environmental conditions demand high reliability and robustness without compromising on 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 air flow and delivers maximum cooling capacity in the stator, rotor, and critical components such as bearings. Additionally, aerodynamically designed fans and fan covers help produce effective air flow with the lowest possible noise level. Hot spots are also avoided by ensuring uniform temperature distribution in the entire frame, therefore providing reliable, high performance over a long service life.
The W22X 800 motors offer ultimate flexibility to the user as they are available with many mounting options including an IM B3 mounting as standard together with various mounting assembly/terminal box arrangements and a flex-resistant welded steel frame with IP55 protection rating and large integrated mounting feet. The robust housing allows the explosion-proof motors to be used in the most demanding applications while minimising vibration and noise emissions.
The W22X 800 motor is available as 2, 4, 6 and 8 pole versions with alternative speeds available on request, and is rated from 2 to 5.6 MW with supply voltage from 6.6 to 11 kV at 50 or 60 Hz. Motors of this size would typically be designed as bespoke, but WEG now offers a standard product with many optional modules in response to increased demand. As such the motor can be customised easily and optimised for individual applications. It is also available to suit different ambient temperatures (-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 business across industries such as oil and gas and mining increase reliability and energy efficiency while bringing maintenance and operating costs down,” says Marek Lukaszczyk, European & Middle East Marketing Manager at WEG. “The new W22X 800 motors are the latest addition to our W22X line of explosion-proof motors that have been designed to meet the most demanding applications without compromising on energy efficiency.”
WEG’s entire W22X product line is available worldwide and compliant with major international standards. For example, the W22X 800 presently has ATEX and IEC Ex certification for Ex d(e) IIB T4 Gb, for mining (Group I) and conductive dusts (Group III), with pending certification for Ex d(e) IIC T4 Gb and regional certifications including GOST, CCOE and INMETRO. With its broad W22X portfolio in frame sizes from IEC 71 to IEC 800, WEG has the ideal explosion-proof motor solution for virtually every situation from gas pipelines in the Arctic to drilling rigs in the hottest parts of the Arabian Desert.