Sinamics Perfect Harmony medium voltage drives and accessories

Based on well-proven technological concepts, Siemens is continually improving medium voltage drives. The result is increasingly higher reliability and operational reliability and safety, more compact types of construction, reduced energy requirements, lower service and maintenance costs, as well as simpler handling from engineering through to installation, integration and commissioning up to operator control. With an installed base exceeding more than 25 GW worldwide, the Sinamics Perfect Harmony GH180 is a proven solution that can perform brilliantly for many cases.

The latest generation of the Sinamics Perfect Harmony GH180 series marks a significant improvement on the previous version. The new structure PCB cell design permitting narrower, lighter-weight cells and a changed transformer design together add up to improved converter output. Improved design reduces the overall width of the new Sinamics Perfect Harmony GH180 by around 20 percent compared to similar converters of its class. Lighter cells can be removed without the need for any aids, and the fan can now be exchanged from the front, making for an enormous improvement in user convenience. Compatibility with almost every motor type makes the medium-voltage converter suitable for wide-ranging applications in fields such as power generation, mining, and the metal, cement, chemical, water, oil and gas industries.

Modern and proven technology

Since its introduction in 1994, the Sinamics Perfect Harmony drive has revolutionized power conversion and continues to set industry standards for reliability and innovation. As power switching device technology advances and increases output voltage capability, Siemens improves each generation of the Sinamics Perfect Harmony GH180 in three key areas: increased reliability and availability, increased efficiency, and a smaller drive footprint. Siemens has maintained the Sinamics Perfect Harmony’s core topology and continues to advance its capability, ensuring life-cycle product support. By keeping the same topology, customers see a reduction in maintenance and spare parts as well as an increase in quality and lower maintenance costs.

The Sinamics Perfect Harmony GH180 of today represents an evolution founded on experience garnered from a large installed base coupled with Siemens unparalleled investments in Research & Development. As one of the largest companies in the world, Siemens provides confidence and financial stability in addition to exceptional technology.

Sinamics Perfect Harmony GH180 

In the Sinamics Perfect Harmony GH180, a series of low‑voltage cells are linked together to build the medium‑voltage power output of the drive system. With this topology, the drive can be scaled precisely for a very wide range of voltage and output power. Additionally, the Sinamics Perfect Harmony GH180 offers increased availability because of its modular design and ability to bypass any one cell during operation while maintaining the full output voltage. The quality of the output voltage is so close to perfect sine-wave shape that motors of literally any type – old or new, low‑speed or high‑speed – can be operated without any additional stress. Issues related to dU/dt, overheating and increased torsion vibrations are a thing of the past.

Sinamics Perfect Harmony GH180 - overview of the most important features

• Provides fault tolerance via Advanced Cell Bypass
• Increases process control to improve throughput and reduce energy waste
• Achieves a near-unity power factor by eliminating harmonic voltage and current distortion
• Eliminates harmonic heating and insulation stress
• Eliminates significant torque pulsations
• Prevents system shutdown by proactively warning the operator of any issues
• Faster project execution thanks to 30 % shorter commissioning times
• Extremely service-friendly design for low maintenance and lifecycle costs
• Compatible with all motor types
• For long cable length up to 2300 m
• Redundant cooling system and advanced cell-by-pass for unrivaled level of reliability and availability

Sinamics Perfect Harmony products and accessories

We encourage you to familiarize yourself with the Sinamics Perfect Harmony series products, as well as the dedicated accessories available in the catalog.

• 6SR4902-0AB01-0AA0 - Sinamics Perfect Harmony GH180 Power cell 70 A GenIV for corroding environmental conditions.
• 6SR4902-0AC01-0AA0 - Sinamics Perfect Harmony GH180 AC 6SR4 Power Cell 100A environmental conditions.
• 6SR3902-0AK00-1AD0 - Sinamics Perfect Harmony GH180 AC 6SR3 Power Cell 660A anodized.
• 6SR0960-0EM08-0AD0 - Sinamics Perfect Harmony GH180 PCA, w/firmware, Bypass, 24 cells, 400 A.
• 6SR4900-0JM00-0AD0 - Sinamics Perfect Harmony GH180 Semiconductor fuses, 500 A, 1200 V.
• 6SR0960-0CB15-0AD0 - Multi-language keyboard module English.
• 6SR4900-0GA07-0AA0 - Radial fan R3G630 380-480 V, 50/60 Hz, max. 2700 W.
• 6SR0960-0EA03-1AD0 - Power supply.

Find out more about our offer by visiting the tabs with Siemens-PLC and Schneider-PLC products. If the product you are looking for is not on our website or you have additional questions, please contact us at inquiry@plc-drives.com or directly at our representatives (addresses available in the "Contact" tab). We are able to supply you with all Siemens and Schneider PLC products, including those already withdrawn from production. Check our offer!