Highest efficiency with the smallest footprint
The ideal speed regulation solution for high-speed rotating equipment that saves energy and reduces CO2 emissions, the VECO-Drive, achieves this high operational efficiency by operating an electrically controlled superimposing planetary gear with frequency-controlled servo motors. As a result, a small amount of rated power ensures a record efficiency of more than 97%.
All benefits at a glance
due to main motor derating
13% less VFD equipment
How the VECO-Drive works
Our portfolio
Our portfolio consists of type RE and type REC:
Motor start
Direct online start (type RE)
Direct online start with VECO-Drive RE
The main motor is started directly online (DOL). Simultaneously, two servo motors accelerate the driven equipment smoothly, thus ensuring a rapid start-up and a reduced main motor load.
Soft motor start (type REC)
Soft motor start with VECO-Drive REC
This type uses two servo motors as an alternative to a direct online start. Large voltage fluctuations are avoided using the two servo motors as soft starters; this is highly recommended when large drives are connected to a weak grid.
Superimposing planetary gear
The ring gear is driven at a constant speed by the main motor. The servo motors control the speed of the planet carrier and, with this, the speed of the sun and output shaft.
To reduce speed, the gears turn in the opposite direction recuperating power. Most of the power is mechanically transmitted, and only a minor portion is used as control power. This precept is known as the power split principle.
Key technical data
- Rated power: 4 MW – 15 MW
- Input speed: 1,500 rpm or 1,800 rpm
- Rated output speed: 5,000 rpm – 15,000 rpm
- Speed range: 70% - 105% (compressors), 50% - 100% (pumps)
- Installation: Ex, non-Ex
References
In February 2020, the first two VECO-Drive units were successfully commissioned and put timeously into commercial operation. Processes have been running smoothly and efficiently at a thermal power plant in Guangzhou, China, with all tests onsite passed with distinction and fulfilling the customer’s expectations.
Currently, the two VECO-Drive units drive the boiler feed pumps and form part of an energy-saving transformation project.
Voith Service – how can we help you?
- Everything from a single source: development, design, production – and service!
- Decades of product experience as an original equipment manufacturer and service provider
- Fast and smooth cooperation and best service thanks to a worldwide network of service locations
- Long-term partnership and planning security are guaranteed due to longstanding corporate stability
