Power Transformer 300/150/150MVA cooling type. 3

[slavag]

Dear Colleagues.
What is preferable cooling type of Power Transformer 300/150/150MVA 161/33/33kV? It will be Step-Up transformer. Generation type : PV and BESS.
ONAN/ONAF
ONAN/ONAF/OFAF
ONAN/ONAF/ODAF

Thanks a lot in advance!

 

[prc]

The ideal arrangement is ONAN/ ONAF . In case you have any restrictions in foot print, go for ODAF cooled compact coolers.

 

[slavag]

Thanks a lot!!!

 

[slavag]

In case of ONAN/ONAF we use 0.6..0.7/1 Sonan / Sonaf.
What is recommendation for ONAN/ODAF?

 

[prc]

It is ODAF only without any ONAN. Each cooler of 20-25 % rating will be provided with a standby spare cooler.

 

[slavag]

Dear PRC
Thanks a lor for your help!