how do you manually calculate the fault level at a substation for big multi source network for the purpose of specifying CTs, CVTs, Transformers, Circuit Breakers, earthing transformers.
Well, both the SBD 82/2 and SBD 88 uses the inverted design with the active parts located in the top of the transformer. Information from Alstm T & D site, the SBD 82/2 uses an epoxy resin insulation which is cast under vacuum plus the pocerlain insulator. They further say no specific...
We are installing curent transnformers type SBD 88 manufactured by Balteau in 1983 (S/No. 4616/1/1 for one of them). These units were procured from Lesotho Electricity board. This design compared to the SBD 82/2 has a pressure gauge at the bottom. Now, on two units these gauges are reading Zero...
