Tender For supply of maintenance of 250 kva transformer and ht yard including supply and installation at stpi kakinada d d - oil filtration for 250kva transformer , transformer oil bdv testing and report , supply of transformer power oil -billing as per the actual usage , supply of 3cx35sqmm ht cable kits outdoor , ht cable kit for end termination , a. las 9kv 5ka polymer type with lighting insulator suitable for 11kv system phase to earth application b. discharge current rating 5ka. c. mounting vertical. d. voltage 9 kv. , earth pits meggering and test report , painting of 11kv dp structure -sp and dp structure painting with aluminum paint including paints , painting of transformer -transformer spray painting with siemens grey paint including paints , threading type silica gel breather - 250 grams -diameter 0.5 inch bsp , 11kv single pole structure hg fuses set , 11kv ab switch male and female connector , 11kv dp structure hg fuses arms set , transformer pad clamps , ht yard maintenance work - double pole structure, 11 kv ab switch, hg fuses, jumpers, la erection and maintenance, department single pole structure maintenance and hg fuses replacement.