Correct option is C
Megger:
· A Megger is an electrical testing device used to measure the insulation resistance of electrical equipment and wiring. It is commonly used to test the integrity of insulation in motors, cables, and other electrical devices.
· The device works by generating a high DC voltage through a hand-cranked generator or an internal battery-powered generator. This voltage is applied to the insulation, and the resulting current is measured.
· The Megger includes an ohmmeter that reads the insulation resistance based on the current flow through the insulation when the high voltage is applied.
Components:
· Generator: Provides the high voltage needed for testing.
· Ohmmeter: Measures the resistance of the insulation and displays it on the scale.
