I need to work out how a transformer arrangement is going to share load. The situation is that there is two 25MVA 66/33KV transformer suppling load to a 33KV bus. The load on the 33KV bus is minimal and does not need back up plan. The transformers also have 7.6KV tertiary windings that supply...
Following on from our annual DGA sampling of our network transformers, one transformer has come back with increased levels of Furfuraldehyde which indicates degradation of the paper insulation. This has been put down to increased winding temperature, we have reduced the load to lower the...
We have a transformer equiped with a HYDRAN Dissolved Gas Analyser, the unit displays the total of all dissolved gases in the oil in ppm. This level has been steadily rising. We have been sending regular oil samples for lab analysis. The results have been inconclusive. The results show a steady...
