Energy efficient frequency inverter for pumps, fans and compressors
Siemens Industry Automation & Drive Technologies has launched a new modular frequency inverter. The Sinamics G120P is specifically designed for pump, fan, and compressor applications. It is a compact drive which provides energy-efficient operation of flow machines in building automation, the process and water management industries. It can also be used for the closed-loop speed control of fans and circulating pumps for heating and cooling systems, for booster pumps, or for pumps for level control.
It features IP55 degree of protection which ensures it can be used in harsh conditions and the inverter is available in 0.37kW to 90kW power range. The power range is covered in only six frame sizes. To enable the economical operation of applications and equipment, the inverter possesses special functions for improving energy efficiency. It is characterised by a very low reactive power value and the integrated hibernation function enables energy-saving standby mode as a function of the setpoints. By automatically switching to line-fed operation at rated speed, a saving of up to 3% of the energy consumption can be achieved, while the auto-ramping function enables currents to be limited and power peaks to be avoided.
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