Surge testing consists of A/C electric motors and generator
windings displaying an accurate picture of the insulation and winding conditions. Tests made are either determined good, marginal, or even defective windings, and the winding insulation before a major failure can occur.
A digital surge tester can be applied to predetermined voltage and can capture a wave form for each phase of the unit. Hi-Pot measurements and megohms can also be displayed. This information is used determine which repairs are needed.