Motors save energy in hazardous areas
Oil, gas and petrochemical industries can now enjoy the same energy benefits as general industry with the launch by Weg of Premium Efficiency EEx d/EEx de, and both Premium Efficiency and Top Premium Efficiency EEx nA hazardous area motors.
The Weg Premium Efficiency EEx d and EEx de motors meet all the requirements of IEC and CENELEC Standards, and the ATEX Directive 94/9/EC (Category Ex II 2 G EExd or EEx de II T4 Zone 1). They are designed to operate safety in category 2, Zone 1 environments where flammable gases or vapours gather in sufficient volumes to generate explosions.
Offering the same energy saving benefits in category 3 hazardous environments, Weg's Premium Efficiency and Top Premium Efficiency dual labelled EEx nA/DIP motors are classified as Zone 2, groups IIA, IIB and IIC, and Zone 22, DIP. This dual classification provides a major benefit for users, in that one motor will suffice in atmospheres containing both combustible gas and non-conductive combustible dust.
The motors are inverter rated to enable maximised energy saving from matched motor/drive combinations. This means they are highly efficient in dealing with the higher peak voltages and faster voltage rise times of the IGBTs used in the latest VSDs.
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