Transformer Operations,
Testing and Maintenance

Transformers are very reliable devices and can provide service for a long time if regularly maintained. Modern transformers and switchgear are much more efficient than they were half a century ago but are subjected to more power dips and harmonic distortion than before. Transformer failures, when they occur, are usually of a very serious nature and require costly repairs and long downtime. The best policy against transformer failure is to ensure that transformers are properly operated and maintained. For all practical purposes transformer life expectancy beyond 20 years significantly depends on the quality of maintenance applied to it.

This course focuses on critical issues that should be considered in establishing good operating practices and implementing an effective transformer and switchgear maintenance program. It provides very practical guidance for maintenance scheduling, operational and testing procedures to achieve long service life of power and distribution transformers and switchgear.