What is “overloading” and what affect does it have on a transformer’s life?
Overloading, or the connecting of more tubing than recommended, produces higher secondary voltages resulting in increased stress on the transformer and sign insulation system. This stress can cause secondary coil failure and reduced transformer life and premature failure of high voltage sign components. Overloading can also cause tube flicker creating high voltage and current peaks in the secondary coils, damaging the insulation system in the transformer and sign, and again, significantly reducing transformer life.