Efficiency drive
May 1st 2007 WEG Electric Motors says drive shafts.
its MVW-01 range is setting
benchmarks for medium
voltage drive efficiency,
achieving 99% with a new
design that uses Multilevel
Topology to minimise
component levels, and high
voltage (6.5kV) IBGTs to
reduce motor harmonic
currents to low levels.
Introduction of the MVW-
01 drives means WEG can
offer a total package,
including input switchgear,
dry or oil-filled phaseshifting
transformer, VSD and
medium voltage motor.
Unlike many MV drives
which have 3 or 5 layer
control, the WEG MVW-01
range has just two layers.
The company says the
benefit of this is a reduction
in the number of
components in the drive,
and commensurate
improvements in efficiency
and reliability.
The drives are Voltage
Source Inverters employing
the latest multi-processor
control architecture. they
are designed to deliver high
levels of reliability and low
noise levels (<75dBA). More articles from WEG Electric Motors (UK) Ltd: | 
