Sulzer is the leading
worldwide, independent
service provider for large
rotating equipment.
Only The Best For
Colombian Generator Repair
esigning and manufacturing
high voltage coils for
large generators and
motors requires precision,
experience and sometimes,
a little assistance from a similarly skilled
company. So, when a Colombian coil
manufacturer needed to outsource
a complete set of new windings it
approached Sulzer. The redesigned coils
received the greatest compliment and
the customer stated that they were the
best quality coils they had ever seen and
installed.
D
M&M Bobinados Industriales has over 45
years' experience in providing a complete
refurbishment service for generators and
electric motors, including the replacement
and subsequent testing of new windings.
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PECM Issue 23
Based in Valle del Cauca, Colombia, the
company offers a complete service for
generator and motor repairs including
balancing and electrical testing.
As part of a recent project,
M&M called on the design and
manufacturing expertise of
Sulzer's Service Center in
Birmingham, UK, to produce 160
new, large coils for an 11,000 kVA
generator.
Benny Hinchliffe, Head of International
Operations at Sulzer UK, explains: "Our
coil shop is supported by an expert design
team that can analyze the original coil
design and apply the latest insulation
technology to produce a much more
efficient coil. In this case M&M completed
one of our datasheets and also sent one
of the original coils to the UK so we could
double-check every dimension."
Having ascertained the required
dimensions of the finished coil, Sulzer's
designers created a 3D computer model
of the coil and, by introducing the latest
insulation materials, were able to redesign
the coil while increasing the volume of
copper by 12%. This increase in copper
effectively improved the efficiency of the
generator by a similar figure. The new
design was also created for a 'best-fit'
which would eliminate the need for
side packers in the stator slots, making
installation quicker and easier.