"Variable-Speed" means the change of the speed of
a driven machine. The Voith variable-speed drive is therefore located
between a constant speed motor and the driven machine.
Customer benefits through speed control
Energy and cost
savings
Speed control offers higher efficiency compared to throttle
control, especially during part-load operation. The driven machine
and the motor take up less energy which results in lower operating
costs. These energy savings, lower investment costs for components
and reduced investment costs for the driven machine usually mean
pay-back times of 6 - 20 months.
Reduced emissions
Energy savings as a result of speed control result in lower
consumption of primary energy and hence protect the environment
due to lower emissions.
Increased flexibility
The application of variable-speed drives allows considerably
higher flexibility in the operation of a plant, since the driving
machine can be adjusted precisely to the actual conditions - with
highest efficiencies.
Increased service life of
motor and driven machine
The load requirements on motor and the driving machine are
continuously lower as a result of speed adaptation and power
take-up adjustments.
Reduced maintenance
requirements
Simple and robust mechanical designs reduce maintenance
requirements to a minimum. Maintenance intervals of up to 8 years.
