Dielectric Strength

Dielectric Strength Testers are precision instruments designed to measure the breakdown voltage of insulating oils used in transformers, switchgear, and high-voltage equipment. These testers determine the maximum electric field a fluid can withstand without failing electrically. By applying a steadily increasing AC voltage across a sample, the device detects when dielectric breakdown occurs, helping maintenance teams ensure oil quality, detect moisture or contamination, and maintain electrical safety.\r\n\r\n