An Insulation Tester/Megger is an instrument used to measure the insulation resistance of electrical equipment, cables, and circuits to ensure safe operation and prevent leakage currents or electrical faults. The main types include handheld portable insulation testers (for field testing and maintenance) and bench-mounted high-voltage insulation testers (for laboratory or factory testing). They are widely used in industries such as power generation, manufacturing, and construction to verify insulation integrity, prevent equipment failure, and enhance electrical safety.
