Condition Monitoring of distribution transformer: A case study on 500 kVA distribution transformer of Jigme Namgyel Engineering College (JNEC) using Thermal Imaging method

Abstract

Uninterrupted electrical supply is critical for the smooth operation of JNEC, supporting laboratories, research facilities, and educational infrastructure. Even brief outages can disrupt critical activities, leading to data loss, research delays, and educational setbacks. To mitigate these risks, continuous condition monitoring is essential. Condition monitoring of electrical machines, including generators, motors, and transformers, ensures reliable operation and prevents unexpected failures in industrial settings. The increasing reliance on automation and the economic importance of continuous operation underscores the need for effective monitoring techniques. This study investigates condition monitoring strategies for 500 kVA distribution transformer of the campus using thermal imaging method. By capturing thermal images, we evaluated the operating status of transformer without interrupting college operations. The color distribution in the thermal images provides a clear indication of equipment health, enabling proactive maintenance and preventing potential failures. This case study focuses on the condition monitoring of transformers within an JNEC’s electrical distribution system using a thermal imager. The results demonstrate the effectiveness of thermal imaging as a valuable tool for assessing transformer status and ensuring reliable power supply in a demanding engineering education environment.