What is the pipe on a 60 MVA power transformer?

[neduet]

Dear all, hi

what is this pipe thing in new transformer 60MVA and what is its use. ?

 

[JBA]

It is a wire conduit connected to a junction box at the top

 

[Babadag]

The radiators -heat exchangers- are not in place. The pipe could be the oil filling or filtering connection to the filling-or recirculating pump. It could be also a connection from oil circulating pump to the radiators.