Drives for Water Industry - Industria de Siemens

Best-practice
water supply examples
Baden-Württemberg state water supply
Task
The Baden-Württemberg state water supply
was to be modernized – with the objective
to increase flexibility and efficiently use the
groundwater reservoirs. This involves one of
the largest long-distance water supply utilities
in Germany: More than three million
people are supplied with drinking water
through an extensive network of pipes
770 km long. This is for an area that in addition
to Stuttgart also includes Aalen, Esslingen,
Göppingen, Ludwigsburg, Schwäbisch
Gmünd and Ulm.
Solution
The groundwater reservoirs were equipped
with variable-speed low-voltage drive systems
for the pumps. The extremely precise
and flexible drive concept always guarantees
the correct mixing ratio – and therefore the
optimum drinking water quality. It also ensures
the maximum availability and reliability
of the water supply. The variable-speed
operation simultaneously saves energy and
reduces the level of stress on the system.
Schwetzinger Hardt waterworks
Task
A higher degree of safety, reliability and
cost-effectiveness. This is what the City of
Mannheim expected when it came to modernizing
their water supply. This was to be
done based on innovative operating control
methods with process visualization and remote
access.
Solution
The drinking water pumping stations were
equipped with variable-speed low-voltage
drive systems – for precise, reliable energysaving
operation that also reduced the
stress on the system. The drive system is
integrated in a SIMATIC WinCC-based supervisory
control system. This means that it
can be operated and monitored from everywhere
– also via remote access.
Products used:
• N-compact low-voltage motors
• SINAMICS G150 drive converters
Products used:
• 1LG6 low-voltage motors
• SINAMICS G150 drive converters
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