Perfect Harmony GH180 — multi-cell medium-voltage frequency converter, 2.3–11 kV, 0.12–25 MW
Perfect Harmony GH180 is the flagship medium-voltage frequency converter of the manufacturer (previously sold as Perfect Harmony GH180 under another brand); it has been produced for more than 30 years, and according to the manufacturer more than 25 000 Perfect
- Output voltage
- 2.3–11 kV
- Power
- 0.12–25 MW (150–34 000 hp)
- Cooling
- air-cooled up to 12 MW, water-cooled up to 25 MW
- Output frequency
- 10–167 Hz without power derating
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Perfect Harmony GH180 is the flagship medium-voltage frequency converter of the manufacturer (previously sold as Perfect Harmony GH180 under another brand); it has been produced for more than 30 years, and according to the manufacturer more than 25 000 Perfect Harmony drives have been installed. The converter is built on a multi-cell voltage source inverter topology (PH VSI): a built-in multi-winding input transformer supplies series-connected low-voltage power cells, whose outputs are summed into a multilevel output voltage. This scheme provides “clean” current draw from the grid with minimal harmonics and an almost sinusoidal output voltage that is gentle on the motor insulation, which makes it possible to use standard motors, including existing ones, during retrofit. The output voltage is 2.3–11 kV, and the power is from 0.12 to 25 MW (150–34 000 hp); air-cooled drives are produced up to 12 MW, water-cooled up to 25 MW. The output frequency is 10–167 Hz without power derating. Control methods are sensorless (open-loop) and sensor-based (closed-loop) vector control, and scalar U/f. The degree of protection is IP42 for air cooling and IP54 for water cooling in the standard version. The modular design and an improved bypass function for faulty cells make it possible to continue operation if a single cell fails, and they provide availability close to 100 %; built-in protections and wide motor compatibility simplify application. The “plug-and-play” principle reduces commissioning time by up to 30 %. Inspire IQ condition monitoring is supported. GH180 is used in many industries, including oil and gas, mining, cement, chemicals, water supply, metallurgy, power generation, food, pulp and paper, and nuclear, for pumps, fans, extruders and mixers, compressors, test benches and wind tunnels.
Technical specifications
| Output voltage | 2.3–11 kV |
|---|---|
| Power | 0.12–25 MW (150–34 000 hp) |
| Cooling | air-cooled up to 12 MW, water-cooled up to 25 MW |
| Output frequency | 10–167 Hz without power derating |
| Topology | multi-cell voltage source inverter (PH VSI) with built-in multi-winding transformer |
| Control | sensorless or sensor-based vector control, U/f |
| Degree of protection | IP42 (air-cooled), IP54 (water-cooled), standard |
| Features | cell bypass, sinusoidal output, “clean” input |
| Installed base | more than 25 000 installations |
Request a price and lead time
Perfect Harmony GH180 — multi-cell medium-voltage frequency converter, 2.3–11 kV, 0.12–25 MW. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
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