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Global Standards Set for Motor Efficiency

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article image NORD IE2 Electric Motors

The IEC has created new standards which have been put in place to harmonize electric motor efficiency classes throughout the world, the new IEC 60034-30:2008 replaces all differing national systems.

The IEC 60034-2-1:2007 has been given a new measurement procedure for efficiency, another additional mutual international standard.

As a result of legal requirements, users are compelled to use energy efficient drive units and to produce optimum efficiency drive units which can result in large costs and deliver logistical challenge.

The IE2 replaces the previous EFF1 certification in Europe and is now the mandatory for a large number of electric motors in the power range from 0.75kw to 275kw in operating mode 1.

For Australia and remainder of the world the IEC 60034-30 Standard will form the basis of  a series of requirements for energy efficient rotating electrical machinery.

In 2012 the process will be complete for Europe who have implemented the standards in a series of phases, just in time for the IE3 coming into effect. The main difference between the IE2 and IE3 is that the latter has a further energy reduction loss of 10- 15%.

The improved NORD Drivesystem IE2 electric motors supplied to Australia are manufactured to the European IEC 60034-30:2008 Standard, known as the IE2. The IE2 design complies and exceeds the current Australian efficiency standards known as MEPS2 or MEPS AS/NZS1259.5. The IE2 standard is also equal to the NEMA energy efficiency/ EPACT standards.

New features include:

  • 3 point concept
  • Increased efficiency by use of more active materials
  • Use of higher quality sheet metals
  • Increasing copper filling factors
  • Simultaneous reduction of winding heads
  • Produces less heat
  • Higher thermal reserves
  • Lower losses allow operation above rated power
  • Increased start up and breakdown torque
  • Permanent reserves
NORD Drivesystems AU offer a variety of alternative voltage, frequency and efficiency designs that are suitable for installation and use in other countries that have alternative efficiency standards.

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