The Application of Surge Comparison Testing Equipment to Fractional Horsepower A-C Stator Windings

The surge comparison test can be adapted readily to testing fractional horsepower motors quickly and in large quantities. The effect of time duration of the test is minimized, and switching surges resulting from the testing apparatus are eliminated. The test applies a voltage stress to the winding, thereby showing any weaknesses. It detects short circuits, grounds, errors in turns, and errors in connections with a high degree of accuracy. Thus the surge comparison test is a valuable method of insuring a quality product with small expense and little interruption of production.