The liquid-cooled drives, available in 12–36 pulse designs, are suitable for use in integrated drive systems. The use of separate transformers and control cabinets offers flexibility in their placement and allows the transformers to be chosen for any primary voltage. The transformers can be installed in locations with easy access or good cooling conditions.
The modular design is also said to improve system efficiency, and to minimise the required footprint. The control cabinet can be installed separately from the MV power section – possibly in an LV control room – making operation and maintenance simpler and safer. Failed cells can be bypassed during operation to maintain output voltages.
Siemens' Perfect Harmony MV drives have a flexible, modular architecture
The drives have marine certification and are arc-fault-tested, making them suitable for marine, offshore, and oil and gas applications.
