Grounding current for transformer tank
Grounding current for transformer tank
(OP)
Hi,
goodwill for every body,
the question about a Generator Step-Up Transformer (15Kv/132Kv) (185 MVA) ,the tank of this transformer is grounded by two points, after measured one was 78A and the other was 44A, that mean the grounding current will be more than 120A.
this's value for grounding current is acceptable or not?
goodwill for every body,
the question about a Generator Step-Up Transformer (15Kv/132Kv) (185 MVA) ,the tank of this transformer is grounded by two points, after measured one was 78A and the other was 44A, that mean the grounding current will be more than 120A.
this's value for grounding current is acceptable or not?






RE: Grounding current for transformer tank
The current flowing through grounding conductor could be-also- from high voltage side as capacitive current from the high voltage overhead line- mainly, if the transformer neutral is not grounded.
RE: Grounding current for transformer tank