Dear Brother's,
I have 132KV CT with 6 cores, and the secondary connections is done as follow:
CT secondary box to Intermediate CT junction box to CT terminal at protection panel and then to Relay/Meters.
the question is where we have to earth the common of each core ( i.e 1S1, 2S1, 3S1...
Good Day..
In wind farm power plant, at 33/132KV step up substation portion with short circuit level of 25ka the following MV cables (XLPE/AL-PE/MDPE) are there:
1- 33KV cables (1/phase)from wind turbine to 33kv switchgear incomer (length=1000mtr)
2- 33KV cables (3/phase)from 33KV swicthgear...