1. Visual inspection (physical inspection) and recording
              2. Insulation resistance test (2.5 kV DC)
              3. Contact resistance test (100A DC)
              4. Interlocking system test
              5. Operation test (Manual / Electrical)
              6. Cleaning of insulator and greasing of movable operation mechanism
              7. Greasing of fix and movable contact blade

              1. Visual inspection (physical inspection) and recording
              2. Insulation resistance test (2.5 kV DC)
              3. Ratio test & Polarity test

              1. Visual inspection (physical inspection) and recording
              2. Insulation resistance test (2.5 kV DC)
              3. Earthing connection inspection
              4. Surge Counter Operation Checked

              1. Visual inspection (physical inspection) and recording
              2. Insulation resistance test / Polarization index test
              3. Winding resistance test
              4. Ratio test
              5. Buchholz / Temp. function test
              6. Tap changer operation test
              7. Cooling system operation test
              8. Dielectric strength of oil test (Main tank and OLTC)
              9. Dissolved gas analysis (DGA) of oil test (Main tank and OLTC)
              10. Water content of oil test (Main tank and OLTC)
              11. Protective &alarm device check

              1. Visual inspection (physical inspection) and recording
              2. Insulation resistance test / Polarization index test
              3. Dielectric strength of oil test
              4. Protective &alarm device check

              1. Visual inspection (physical inspection) and recording
              2. Insulation resistance test / Polarization index test
              3. Dielectric strength of oil test
              4. Measurement Capacitance value

              1. Visual inspection (physical inspection) and recording
              2. Insulation resistance test of busbar (2.5 kV DC)
              3. Contact resistance of switching equipment
              4. Operation test switching device (manual/electric)
              5. Operation timing test
              6. Spring charging test
              7. Protective relay and metering device test (service setting value test)
              8. Interlock function test
              9. Cleaning of insulator and greasing of movable operation mechanism
              10. Panel outside cleaning & waxing

              1. Visual inspection (physical inspection) and recording setting value
              2. Test function of relay , Service Setting and operation -Over current relay , Over current ground relay
                  -Over and Under Voltage relay
                  -Differential Reley etc.
              3. Test function of interlocking circuit
              4. Test of metering device
              5.Test of Annunciator operation
              6. Function test at Local & Remote Position
              7. Cleanning & Tighting

              1. Visual inspection (physical inspection) and recording
              2. Operation Charge & discharge Voltage
              3. Measurement Voltage per Cell

              1. Visual inspection (physical inspection) and recording
              2. Cleaning and tightening
              3. Insulation resistance test

              1. Insulation resistance test
              2. Visual inspection (physical inspection) and recording