P panthripu Member Jun 30, 2010 #1 Hi I want to know , if there is any thumb rule or formula to know what should be transformer oil BDV if we know the operating voltage. Like my transformer has 34.5kV.
Hi I want to know , if there is any thumb rule or formula to know what should be transformer oil BDV if we know the operating voltage. Like my transformer has 34.5kV.
mivey Senior Member Jun 30, 2010 #2 New oil: 35 kV minimum 287.5 kV+: 30 kV minimum <287.5 kV: 25 kV minimum
