Turbine System Program” (AHTS)
which aims to develop technology to
maximise the use of hydropower while
minimising the environmental effects.
Refurbishment of existing turbine
assemblies can now include the latest
materials technology such as the High
Velocity Oxygen Fuel (HVOF) coating
system, which uses tungsten carbide
materials. This and other similar
coating and wear protection systems
can be used to protect water turbines
and draft tubes against erosion from
water-born sediment and reduce
cavitation effects for Pelton, Kaplan,
and Francis turbines.
Improving generator efficiency
Advances have been made in the
design and construction of the high
voltage stator coils used within
the generator, which can provide
improved efficiency and reliability.
The manufacture of high voltage
coils is a very precise science; design
and construction methods will vary
between suppliers, as will the testing
procedures, which form the bulk of the
proof the client has of the quality of
the finished product.
Obviously, when repairs are unplanned,
speed is crucial in getting the
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Improved generation
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