What type of measurement does a mega instrument provide?

A mega instrument is specifically designed to measure resistance, particularly the insulation resistance in electrical systems. This is crucial in various electrical applications to ensure that insulation is functioning properly and to identify any potential breakdowns in insulation that could lead to short circuits or equipment failure. The unit of measurement for resistance is ohms, and insulation resistance testing, often using a megohmmeter (a type of mega instrument)—is typically performed at high voltages to ensure the integrity of electrical insulation.

While voltage, current, and power are fundamental electrical quantities, they are measured using different types of instruments, such as voltmeters for voltage, ammeters for current, and wattmeters for power. Understanding how a mega instrument operates and its specific application in measuring resistance is essential for professionals in the electrical field, as it helps maintain safe and efficient electrical systems.