Using series capacitors to mitigate voltage flicker problems

Since 1989, Union Electric has made use of series capacitor banks to mitigate voltage flicker problems on long distribution feeders with fluctuating loads. The types of loads being compensated for are cotton gins, a water well pump, sawmills, and a dog food processing plant, with the flicker typically being reduced by 60 to 80 percent. These series capacitors have been designed, constructed, and installed by Union Electric engineering and construction personnel at a cost comparable to a shunt bank installation