No output transformer required – motor voltage 2.3 to 13.8 kV can be provided directly
No harmonic line filters or power factor compensation required
Engineered to continue operating through component failures that would completely disable conventional drives. The patented cell-based configuration maximizes availability, letting the customer determine the right time to perform maintenance, while the modular design reduces system repair time to minutes.
The cell bypass option ensures automatic bypass of a failed power cell in typically 250 ms or less (less than 1/2 of a second) through a redundant bypass control that is completely separated from each power cell.
The optional process-tolerant protection system (ProToPS) in combination with cell bypass supports the high reliability and availability of the SINAMICS PERFECT HARMONY GH180. Instead of tripping the drive and automatically shutting down the system due to a malfunction, ProToPS provides a hierarchical system of warnings. This control strategy allows time to evaluate the situation and respond appropriately to avoid a system shutdown.
No common mode motor insulation stress – the SINAMICS PERFECT HARMONY GH180 includes an integral isolation transformer
Compatible with both new and existing 1.0 service factor induction or synchronous motors from any manufacturer without any special design considerations
No significant drive-induced torque pulsations – even at low speeds
