Power quality problems: harmonic pollution caused the damage of medical equipment.Power quality solution: install Hoteam active harmonic filter.

Dagang oil field of Petro China has a lot of VFD which produces much harmonics to the grid. The reliability and safety of power supply system will be seriously affected. So Petro China installed Hotea

Power quality solution: install Hoteam active harmonic filter to filter the harmonics in their power system.

Power quality solution: 10sets of Hoteam active harmonic fiter.Result: The THDv reduced to 0.7%, the THDi reduced to 1.9%.