Which device is typically used to perform insulation tests such as Hipot and Dielectric tests?

Which device is typically used to perform insulation tests such as Hipot and Dielectric tests?

• A. Multimeter
• B. Oscilloscope
• C. Megger
• D. Clamp Meter

Answer: (C)

Insulation tests require a tool that can safely apply a high voltage to insulation and measure how much current leaks through. A megohmmeter (Megger) is built for this purpose: it applies a defined high voltage and measures leakage to determine insulation resistance in megohms. This is exactly what Hipot (dielectric withstand) tests assess—the ability of insulation to resist high voltage without breaking down. The other tools aren’t designed for this kind of high-voltage insulation testing: a multimeter measures basic electrical values at low voltage; an oscilloscope displays waveforms but doesn’t perform insulation resistance testing; a clamp meter measures current without exposing the circuit to high voltage or testing insulation. So the tool used for these tests is the Megger.

Insulation tests require a tool that can safely apply a high voltage to insulation and measure how much current leaks through. A megohmmeter (Megger) is built for this purpose: it applies a defined high voltage and measures leakage to determine insulation resistance in megohms. This is exactly what Hipot (dielectric withstand) tests assess—the ability of insulation to resist high voltage without breaking down. The other tools aren’t designed for this kind of high-voltage insulation testing: a multimeter measures basic electrical values at low voltage; an oscilloscope displays waveforms but doesn’t perform insulation resistance testing; a clamp meter measures current without exposing the circuit to high voltage or testing insulation. So the tool used for these tests is the Megger.