Power Transformer Health Concepts

All matters affecting the health of a power transformer are discussed in this section.

Saturday, July 28, 2018

Case Study - 390 MVA GSU Transformer [1]

Background [2]  On the 15 May 2005 this 390 MVA GSU transformer failed. During the previous unit outage the transformer oil was purified to remove moisture. The transformer was initially commissioned in October 1971. In 1996 the transformer was involved in a coupling transformer incident with another unit and was sent to the repair facility for refurbishment in...