What Does a VLF Hipot Tester Do?
A VLF hipot tester (Very Low Frequency high potential tester) is an electrical testing device used to evaluate the insulation integrity of high-voltage cables, transformers, motors, and other electrical equipment. It is a critical tool for detecting potential breakdowns or weaknesses in insulation systems before they lead to equipment failure or unsafe operating conditions. Key Functions of a VLF Hipot Tester 1. Insulation Testing: The primary function of a VLF hipot tester is to assess the quality and reliability of insulation in high-voltage cables and equipment. By applying a very low frequency, high voltage signal, it stresses the insulation to ensure it can withstand operating conditions without failure. 2. Leakage Current Detection: VLF hipot testers measure the leakage current that flows through the insulation. An abnormally high leakage current may indicate weakened or damaged insulation, which could lead to a breakdown. 3. Dielectric Strength ...