Procedure for transformer main tank oil level tolerable limit checking

Procedure for transformer main tank oil level tolerable limit checking

1.Find the value of the  oil level in oil level indicator scale markings in main tank conservator.

2.Find the value of the  oil temperature  in oil temperature indicator scale markings in transformer marshaling box.

3.Compared  transformer  oil temperature verses oil level as below the graph, You can got exactly tolerable limit for oil level of main tank