Siemens, a global leader in drives technology, is raising the bar with siemens medium voltage vfd that is designed specifically for the demands of today’s HVAC systems. Increased focus on energy efficiency of variable flow systems has increased the need for easy-to-use and highly reliable variable frequency drives that reduce the cost of installation and maintenance while maximizing energy savings. Siemens VFD is constantly expected to do more with less, managing energy consumption and optimizing occupant comfort remains of utmost importance.
General Functionality
The SINAMICS PERFECT HARMONY GH180 is a series of cells linked together to create the medium voltage power output of the drive system. The design features an integrated transformer and the ability to scale the drive for a wide range of voltage and output power.
Technical Data Overview
- Cooling: Air-cooled drives up to 10 MW
- Water-cooled drives up to 24 MW
- Max. Output Frequency: 330Hz standard
- Output Voltage Range: 2.3 to 11Kv
- Standard applications: pumps, fans, compressors and conveyors (downhill and uphill).
- Specialized applications: vertical mills, horizontal mills (geared) and high-speed compressors.
- Additional applications: Boiler feed pumps, Blast furnace blowers, Crushers, Extruders, Mixers, Kilns, Electrical Submersible Pump, High-Pressure Grinders, LNG start/helper, Test stands and Wind Tunnel.
- Degree of Protection: IP21 or higher, air cooling; IP31 (excluding blower cage) IP43 or IP54 water cooling
- Benefits
– Clean Input Power
– Maximized Availability
– Sinusoidal Output Power (Waveforms)
– Extended Warranty
– Exceptional Input Line Performance
– Extensive Testing
– Fast Delivery
– Ease of Installation and Maintenance - Characteristics
- Motor-side Inverter: Multilevel drive (PWM)
- Line-side Rectifier: 6SR5 18 to 54 pulse diode 6SR4 18 to 54 pulse diode 6SR327 18 to 48 pulse diode
- Motor Control: Induction, Synchronous, Permanent magnet motors, and Wound rotor Motors
- Power Cells (A): 6SR5 40, 70, 100, 140, 200, 260
- 6SR4 315, 375, 500, 600, 750
- 6SR327 880, 1000, 1250, 1375
- Input Frequency (Hz): 50/60 ± 5%
- Output Frequency and Drift: 0.5 … 330 ± 0.5%, ±0.1% with encoder
- Power Range (Hp): 6SR5 150 to 3000 (100 kW to 2.4 MW)
- 6SR4 200 to 9000 (150 kW to 6.7 MW)
- 6SR327 4000 to 33000 (3 to 24.6 MW)
- Drive Quadrants: 2 or 4
- Drive Control Methods: Sensorless closed-loop control, Open-loop vector control, V/Hz
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