Winding

• Measurement of Winding  Resistance

• Turns Ratio test 

• Measurement of Insulation Resistance and polarization index

• Measurement of Capacitance & tan d test 

• Recording of Partial Discharge

• Magnetic Balance test

• Vector Group 

  Bushing

• Visual Inspection

• Measurement of Capacitance & tan d  

• Recording of Partial Discharge

• Bushing Oil testing 

  Insulating Oil

• Visual Inspection 

• Oil tan d test 

• Oil Dielectric constant test

• Oil Resistivity test

• Oil Breakdown Voltage Measurement