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Variable speed drive application in purification system optimizes the system performance, improves purification effect, reduces power consumption greatly. According to related statistic, flue gas consumption reduces 19m3/t. Total power consumption reduces 137000kW.h per month.
Variable speed drive is a new power inverter and it has applied in industry maturely. It not only starts motor easily with lots of protections but also saves energy. So it is very necessary to utilize variable speed drive to improve safety and automatization. Variable speed drive realizes soft start/stop and saves energy. It adjusts speed according to air flow demand in lane easily with ideal effect. China has many coal mines, medium voltage variable speed drive application must be widely in this field.
service VSD blog: A deep observation of automation control industry, especially in AC motor variable speed drive for industrial motor controls.

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7 months back I was involved in a harmonics evaluation study at Budweiser. This was one of many I've participated in over the past 20 years, basically because in facilities like ... Most of variable speed drives are applying on high temperature fans, kiln head coal mill fans, kiln head surplus fans, raw mill circulating fans and so on. Two production lines ... Variable speed drive application in purification system optimizes the system performance, improves purification effect, reduces power consumption greatly. According to related ... The motor power factor does not make a big difference other than giving an idea of loading. In regards to the variable speed drive fixing power factor everyone is mostly correct. ... A soft starter is a basic device which will ramp up the speed of your motor to full speed over a preset time, easing mechanical stress and also easing the high inrush currents ...

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