MGPC Sustainability Blog

How does iMEC work?

AC induction motors consume more than half of all the worlds’
energy! Unfortunately, motors lack the intelligence to address
three key problems that lead to massive energy wastage,
unnecessary carbon emissions and undue wear and tear:

1) Fixed speed motor driven applications like escalators cannot
intelligently adjust their torque output to match load changes
leading to excess energy consumption.

2) Motors that drive applications like pumps & fans cannot
intelligently adjust their speed to match load changes and as such
consume more power than they need.

3) When starting, a motor develops more torque than is
required at full speed. This high inrush of current can lead to
mechanical breakdown and peak demand penalties. To avoid the
problems associated with starting, motors are often left running
continuously even when they are not being used which leads to
huge energy waste.

The iMEC solution effortlessly addresses all of these problems
by introducing intelligence to your existing systems:

1) iMEC can be applied to fixed speed applications and will
dynamically adjust the torque output to meet load requirement
without altering the speed (see fig. 1). This leads to substantial
savings and is ideal for applications like escalators and many others
which run at no/low load for long periods of time. In the right
applications, payback is typically under two years!

2) iMEC can be specified to intelligently adjust the speed of
your motors to match their variable loading so your motors only
consume the power they need. This is a vast improvement over
traditional control methods (see fig. 2). A mere 20% reduction in
speed can lead to energy savings of up to 50%!

3) iMEC provides a smooth, step-less acceleration (soft start) of
your motors (see fig. 3). This dramatically reduces wear & tear on
your system and helps you to avoid peak demand penalties. With
a controlled start in place your motors can now be switched off
without the fears of re-starting and iMEC can be programmed to
perform this function automatically. Auto Switch Off delivers 100%
energy savings!

Use iMEC to get your motors under control – it’s a great way to cut your costs, boost your profits and ‘do your bit’ in the fight against climate change