Make : CG Transformer
Rating : 67 MVA - 380/115/13.8kV
The Power factor value HV side bushing should be below 0.5%.
But during our testing the value came around 1.45%.
Our Transformer Fourmen top bushing. The bushing is connected with flexible conductor and immersed with the oil. He tight this connection and clean the area around.
We conduct again same test and result is with in the limit 0.3%.
HV busing
Test value after tight and clean
