Insulation resistance measurements, obtained utilizing a megohmmeter (generally often known as a “Megger”), assess the effectiveness {of electrical} insulation in stopping present leakage. Readings indicating excessive resistance signify efficient insulation, stopping stray currents and making certain protected operation {of electrical} gear. As an illustration, a motor winding exhibiting a resistance studying within the megaohm vary is usually thought-about correctly insulated. Conversely, low readings counsel compromised insulation, posing potential security hazards and efficiency points.
Validating insulation integrity by way of these exams is crucial for electrical security and gear longevity. Stopping insulation failure minimizes dangers equivalent to electrical shock, gear harm, and fires. Traditionally, these exams have performed a vital position in enhancing electrical system reliability, evolving alongside developments in insulation supplies and testing applied sciences. Their use stays a cornerstone of predictive upkeep applications, enabling proactive identification and rectification of potential insulation weaknesses earlier than they escalate into pricey failures.
