Variable speed planetary gear
2nd Quarter 2014
Electrical switching & drive systems & components
Voith’s new Vorecon variable speed planetary gear is winning over customers in the oil and gas industry worldwide. Ten Vorecons with dual torque converter have already been sold to American pipeline and gas storage operators for use in controlling the speed of electrically driven compressors. It has a high degree of efficiency across the entire speed control range, with 99,98% reliability.
The Vorecon is the ideal solution for operating points that fall within the speed range of 60% to 90% of maximum speed. It is up to 2% more efficient than drive systems with a variable frequency drive (VFD) over the entire speed control range. The operator benefits from greater flexibility with regard to operating characteristics and long-term planning security.
The life cycle costs of a compressor station depend on the availability of the drive components. With its reliability of 99,98% and an MTBF of 48 years, the Vorecon avoids unscheduled downtime of the drive systems and the associated costs. The lifetime of the hydrodynamically controlled planetary gear is several decades, more than three times more than that of VFDs.
The Vorecon has numerous advantages for gas pipelines and storage. It provides high torque at low speeds, a requirement for gas storage, for instance. Compared to VFDs with a constant torque, it is not necessary to oversize the driveline. The speed control system, gearbox and oil supply are already integrated directly into the Vorecon. As a result, the customer benefits from lower infrastructure costs.
For more information contact Terry-Lynn McIntosh, Voith Turbo, +27 (0)11 418 4036, [email protected], www.voith.com
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