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| 1 | Handling and Dragging of Transformer from stacking yard to repairing hall with accessories. | Handling and Dragging of Transformer from stacking yard to repairing hall with accessories. |
| 2 | Cutting/Opening of top cover plates & fitting of the transformers, draining of its oil & Detanking of core & coil Assembly with help of pneumatic tools. | Cutting/Opening of top cover plates & fitting of the transformers, draining of its oil & Detanking of core & coil Assembly with help of pneumatic tools. |
| 3 | Dismantling of core & coil Assembly and cleaning of core and tank (inside) by using warm old oil and hot air making it dirt free/sludge free. | Dismantling of core & coil Assembly and cleaning of core and tank (inside) by using warm old oil and hot air making it dirt free/sludge free. |
| 4 | Reconditioning/ Making of L.V leg coils from reconditioned strips/new DPC strips, of same size and No. of turns and dimensions as old one. | Reconditioning/ Making of L.V leg coils from reconditioned strips/new DPC strips, of same size and No. of turns and dimensions as old one. |
| 5 | Reconditioning/Making of H.V leg coils from new DPC or SE wire of same size and No. of turns and dimensions as old one. | Reconditioning/Making of H.V leg coils from new DPC or SE wire of same size and No. of turns and dimensions as old one. |
| 6 | Assembly of core, channel (duly painted by zinc chromatic paint) & coil and fitting of other parts requiring replacements such as press board making supports between adjacent section by insulating spacers & tapping etc. | Assembly of core, channel (duly painted by zinc chromatic paint) & coil and fitting of other parts requiring replacements such as press board making supports between adjacent section by insulating spacers & tapping etc. |
| 7 | Shifting and keeping the assembled core& coil etc. in OVEN from the repairing area. | Shifting and keeping the assembled core& coil etc. in OVEN from the repairing area. |
| 8 | Dragging of transformer tank to washing area and cleaning of rust/dirt etc from outer surface by using caustic soda & water solution. | Dragging of transformer tank to washing area and cleaning of rust/dirt etc from outer surface by using caustic soda & water solution. |
| 9 | Repairing of damaged T/F body/radiator by electric/gas welding complete in all respect for arresting oil leakage. | Repairing of damaged T/F body/radiator by electric/gas welding complete in all respect for arresting oil leakage. |
| 10 | Completely drying & Cleaning of T/F tank (inside and outside) by using hot air/cotton waste/sand paper etc completely and making it ready for painting | Completely drying & Cleaning of T/F tank (inside and outside) by using hot air/cotton waste/sand paper etc completely and making it ready for painting |
| 11 | Painting of inner side of T/F tank with heatproof zinc chromatic paints in two coats after providing primer of red oxide paint. | Painting of inner side of T/F tank with heatproof zinc chromatic paints in two coats after providing primer of red oxide paint. |
| 12 | Dragging/shifting out empty tank after painting to assembly area. | Dragging/shifting out empty tank after painting to assembly area. |
| 13 | Taking out core and coils assembly from the OVEN and shifting to repairing area & again tightening the assembly. | Taking out core and coils assembly from the OVEN and shifting to repairing area & again tightening the assembly. |
| 14 | Welding/fixing the top cover after tanking of core and coil assembly into painted tank and tightening of assembly into the tank and fitting all accessories of transformer with help of pneumatic tools and filling of oil, alongwith bringing oil gauge in working condition for transformers in which oil gauge, cast iron and nut bolts are present | Welding/fixing the top cover after tanking of core and coil assembly into painted tank and tightening of assembly into the tank and fitting all accessories of transformer with help of pneumatic tools and filling of oil, alongwith bringing oil gauge in working condition for transformers in which oil gauge, cast iron and nut bolts are present |
| 15 | Spray painting of transformer tank from outside with super enamel synthetic Grey paint in two coats after providing primer of red oxide paint | Spray painting of transformer tank from outside with super enamel synthetic Grey paint in two coats after providing primer of red oxide paint |
| 16 | Dragging/shifting of repaired T/F near to the test cabin/testing place and dragging /shifting T/F to yard after testing and its stacking at identified place. | Dragging/shifting of repaired T/F near to the test cabin/testing place and dragging /shifting T/F to yard after testing and its stacking at identified place. |
| 17 | Punching and welding of M.S. plate of 100x50x3mm size on the outside of T/F containing following information. (I) Unique number, (II) Capacity (III) Name of workshop (IV) Date of repair | Punching and welding of M.S. plate of 100x50x3mm size on the outside of T/F containing following information. (I) Unique number, (II) Capacity (III) Name of workshop (IV) Date of repair |
| 18 | Making of broken delta/Star connection with suitable size of Alu. Ferrule/soldering the joint with suitable brazing rod including all associated work. | Making of broken delta/Star connection with suitable size of Alu. Ferrule/soldering the joint with suitable brazing rod including all associated work. |
| 19 | Making of broken HV/LV lead connection with suitable size of Alu. Ferrule including all associated work. | Making of broken HV/LV lead connection with suitable size of Alu. Ferrule including all associated work. |
