PRC
It is not a case of wanting it to be connected this way, more a case of temporary back up using what we have availible until substation is refurbished in 4 years time. We have the two 66/33/7.6 transformers on site, had three there until one failed a couple of weeks ago. 33KV load is not an...
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...
Lyledunn,
Yoy may find the website for a company called MCT who are building these types of tubines useful. It shows how they operate and how they can be raised for maintenance etc. The web site is www.marineturbines.com. They may be the company installing in your area as they are based in...
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...
dpc
Iam interested to know more about your comment on vegetable oil for transformers. We use both mineral oil and midel insulating fluid for our transformers at present. Do cooper have a web site and is the product type tested?
Thanks
seanmcc
There are two other options to consider
1, Fit fire dampers over the vents, The dampers can then be released electrically by the the fire panel or mechaniclly by the gas being released.
2, Remove the transformer oil and replace with Midel insulating fluid, which is non flammable therefore...
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...
