Project Cases — Page 2
Project location: Xinxiang, Henan, ChinaGenerating from Condensate Pressure at a Fertiliser Plant: Four-Quadrant Drive Returns 80 kW to the GridSteam condensate leaving a fertiliser plant still carried usable pressure. A turbine impeller coupled to a permanent-magnet motor, run by a 132 kW four-quadrant drive, now exports 80–90 kW back to the grid.
Project location: Printing works, web pressWeb Tension Control on a Printing Press: Keeping Rewind Speed Locked to Web SpeedPaper tension decides whether a printed web comes off flat or creased. This press holds it by synchronising web and rewind speeds, calculating the rewind roll diameter live and trimming the result with a dancer feedback loop.
Project location: Xinjiang, ChinaPlate Mill Hydraulic Pumps at Xinjiang Bayi Iron & Steel: Drive Plus PMSM Beats Soft StarterFour roll-gap hydraulic pumps ran on Schneider soft starters. Three were converted to YDS8000 drives with permanent-magnet motors, taking supply current from 86 A to 70 A — 10.5 kW less, about 50,400 kWh a year.
Project location: Packaged chiller unit, ChinaEvaporative-Condenser Chiller Unit: A Liquid-Cooled Drive for a Magnetic-Levitation CompressorA water-cooled packaged chiller needed a drive that could sit inside the machine and keep a magnetic-levitation compressor stable at every duty point, without the airborne dust a forced-ventilation panel would pull in.
Project location: Corrugated base paper mill, ChinaStock Preparation Retrofit at a Corrugated Paper Mill: PMSM Feed Pumps Cut 40 kWTwo stock-preparation feed pumps on a high-speed paper machine moved from induction motors to permanent-magnet machines. Supply current on the cleaner pump fell from 730 A to 650 A — about 40 kW, or 192,000 kWh a year.
Project location: Fluorite mine, 600 m vertical shaftShaft Hoisting System for a 600 m Fluorite Mine: Direct PMSM Drive Replaces Gearbox and HVA 630 kW outer-rotor permanent-magnet motor drives a multi-rope friction winder directly from a 380 V drive — no gearbox to maintain and no 10 kV switchgear to buy. Commissioning waveforms at 1.5 and 12.5 rpm, and a 110 % overload test at 0.5 rpm.