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| 1 | Preliminary inspection of transformers at PVVNL site/workshop involving minor repairs at site/workshop |
| 2 | Preliminary inspection of transformers at PVVNL site/workshop for estimation involving major repairs unloading of trnasformers, at contractors work & repair of transformer cover, draining of oil, if any, di-tanking core and coil assembly, and replacement of damaged parts, minor repair of core and tank (if required) cleaning washing of dust & dirt etc. from all parts including core tank & cooling tubes of radiators removal of damaged parts, requiring replacement, fitting, fixing of new parts, making connection & assembly, complete in all respect, re-tanking after repairs, filling fresh transformer oil, making transfomer ready for tests & testing for all tests as per clause 16.0 of Technical specification. |
| 3 | HV leg coils complete with insulation, varnishing by vacuum impregnation (if required as per sample) and baking of coil assembly (variable base date 01.05.26) |
| 4 | LV leg coils complete with insulation, vanishing by vacuum impregnation (if required as per sample) and baking of coil assembly (variable base date 01.05.26) |
| 5 | HV bushing 33/37.5 KV |
| 6 | LV Bushing 11 KV |
| 7 | HV bushing metal parts |
| 8 | LV bushing metal parts |
| 9 | Set of gaskets (rubberized cork) |
| 10 | Silicagel breather with fresh Silicagel |
| 11 | Magnetic type oil level gauge with low level alarm contact |
| 12 | Tapping switch 33/37.5 KV complete with handle |
| 13 | Tapping switch handle |
| 14 | Oil drain valve incorporating sampling device (with narrow orifice) & having suitable arrangement for locking |
| 15 | Filter valve |
| 16 | Dial type thermometer of minimum 150 mm dia with maximum temperature indicator complete with resetting device and alarm contacts |
| 17 | Double float Bucholz relay complete with alarm and trip contacts |
| 18 | Air release plug |
| 19 | Replacement of damaged core |
| 20 | Pair of arcing horns |
| 21 | Radiator valve |
| 22 | Replacement of un repairable radiator of equivelent size with equal fins. |
| 23 | Overhauling of OLTC |
| 24 | Replacement of OLTC contact |
| 25 | Replacement of OLTC terminal barrier board |
| 26 | Replacement of gaskets, lubrication of mechanical system |
| 27 | M. S. Clamping ring |
| 28 | Winding temperature indicator (complete set) |
| 29 | Fresh transformer oil of standard quality as per IS:335/83 and latest amendment thereof.(variable base date 01.05.26) |
| 30 | Sundry item viz cover bolt, plug, caps, screw, washers, insulation material, minor repairs of tank, other parts required if any, Aluminium Name Plate etc. |
| 31 | Painting inside & outside of transformer including radiator tubes concervator with suitable primer and two coats of suitable paint of grey colour and marking etc. |
| 32 | Burnt/damaged leg coils to be retained by the contractor(variable base date 01.05.26) |
| 33 | Damaged metal parts of bushing to be retained by contractor |
| 34 | Transportation/Carriage charges |
| 35 | Upto 10 kms. |
| 36 | Above 10 kms. To 25 kms. |
| 37 | Above 25 kms. To 50 kms. |
| 38 | Above 50 km. To 100 kms. |
| 39 | Above 100 kms. To 150 kms. |
| 40 | Above 150 kms. To 200 kms. |
| 41 | Above 200 kms. Please Enable Macros to View BoQ information |
