Drax
Power Ltd operates the UK’s largest coal-fired power
station, burning around 36,000 tonnes of coal per day when
operating at full load. In recent years, the station
has embarked on an alternative fuels programme, successfully
developing processes to burn a blend of coal and biomass materials.
Five SR Drive® systems
of between 40kW and 160kW are employed, each direct-coupled to
applications that in some cases previously required the use of
problematic
fluid couplings.
90 metre long inclined belt conveyor is driven
by a 160kW variable speed SR Drive® system.
As part of a £1
million investment in plant modifications, Drax Power Ltd has
installed a fuel blending plant which allows a variety of alternative
fuels to be accurately blended with the main coal feed. Achieving
this demanded drive systems that offer precise and infinitely
variable speed control over the whole operating range of the
conveyors. Drax Power Ltd selected Nidec SR Drives Manufacturing Ltd to provide the demanding drive solutions.
Five
SR Drive® systems
from 40kW to 160kW are employed on the blending plant. Two of
these are drives on new installations and three are replacements
for fixed speed induction motors. Like
many applications, the installation benefits from the exceptionally
broad operating envelope of SR Drive® systems
and their ability to maintain very high levels of operating efficiency
throughout the operating range.
Five
SR Drive® systems
from 40kW to 160kW are employed on the blending plant. Two of
these are drives on new installations and three are replacements
for fixed speed induction motors. Like
many applications, the installation benefits from the exceptionally
broad operating envelope of SR Drive® systems
and their ability to maintain very high levels of operating efficiency
throughout the operating range.