Find the right cable for VFD systems  Cable quality and usage
are factors in making the best choice during installation.
Variable frequency drives (VFDs) make practical and
environmental sense for both discrete manufacturing and process
plants. VFDs allow the speed of a 3-phase ac electric motor to
be altered to meet variations in demands (such as temperature,
pressure, or force) from, for example, a pump, fan conveyor
belt, or lathe.  VFDs reduce waste—of both material and energy.
They can control motor speeds to within 0.1% tolerance to reduce
scrap. They also offer significant energy savings: at half
maximum speed using a pulse width modulation (PWM) VFD, a motor
consumes roughly one quarter of the energy required to run at
full speed. In addition, VFDs reduce wear-and-tear, resulting in
lower maintenance costs and longer motor life.  When choosing
components for a VFD system, one carefully selects the motor and
drive components based on the operating requirements, which
typically include the load, torqu