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| 1 | 1.0) Opening of transformer cover, draining oil, de-tanking core coil assembly, Assessment and estimation for Repair and replacement of part,providing locking arrangement on all valves & plugs as per requirement of specification,Cleaning & washing of dust/ rust & dirt from all other parts including core tanks & cooling tubes,re-tank , variable with base date 01.03.2023 |
| 2 | 1.1) For 3.15 MVA Rating |
| 3 | 1.2) For 5.0MVA Rating |
| 4 | 1.3) For 8.0 MVA Rating |
| 5 | 2.0) SUPPLY OF FOLLOWING DAMAGED PARTS REQUIRING REPLACEMENT COMPLETE IN ALL RESPECT, variable with base date 01.03.2022 |
| 6 | 2.1) HV Leg Coil with insulation, varnish & baking of coil assembly (Vacuum impregnation)(the burn leg is to be retained by contractor) |
| 7 | 2.2) LV Leg Coil with insulation, varnish & baking of coil assembly (Vacuum impregnation)(the burn leg is to be retained by contractor) |
| 8 | 3) HT bushing (33 KV) as per relevant ISS. |
| 9 | 4) LT bushing (11 KV) & Neutral bushing as per relevant ISS. |
| 10 | 5) Bushing rod & other metal parts including nuts ( material & size of bushing/ rods/nuts as per IS Specidfication) |
| 11 | 5.1) For HV |
| 12 | 5.2) For LV |
| 13 | 6.0) Set of Gaskets (rubberized cork neoprene material & size is to be needed) |
| 14 | 6.1) For 3.15 MVA Rating |
| 15 | 6.2) For 5.0MVA Rating |
| 16 | 6.3) For 8.0 MVA Rating |
| 17 | 7.0) Breather Dehydrator (Silicagel type with fresh silicagel) |
| 18 | 7.1) For 3.15 MVA Rating |
| 19 | 7.2) For 5.0MVA Rating |
| 20 | 7.3) For 8.0 MVA Rating |
| 21 | 8.0) Glass for oil level gauge |
| 22 | 9) Taping switch handel only |
| 23 | 9.1) For 3.15 MVA Rating |
| 24 | 9.2) For 5.0MVA Rating |
| 25 | 9.3) For 8.0 MVA Rating |
| 26 | 10) Off loading Taping switch without handle |
| 27 | 10.1) For 3.15 MVA Rating |
| 28 | 10.2) For 5.0MVA Rating |
| 29 | 10.3) For 8.0 MVA Rating |
| 30 | 11) Oil drain/ filter valve of gun metal |
| 31 | 12) LT Terminal plate with terminals if required |
| 32 | 13) Fresh transformer oil of standard qualityof ISI mark, variable with base date 01.03.2023 |
| 33 | 14) Filtration charges if Transformer oil supplied by the Nigam / Repairer of the Transformer |
| 34 | 15) Sundry itemsviz cover bolts, plug cap screws, washers, insulation material etc. with minorrepairs of tank and other parts if any (Denting and welding etc. if required) |
| 35 | 15.1) For 3.15 MVA Rating |
| 36 | 15.2) For 5.0MVA Rating |
| 37 | 15.3) For 8.0 MVA Rating |
| 38 | 16) Cooling Tubes/ Fins |
| 39 | 17) Conservative Tank with detachable end plates. |
| 40 | 18) Dial type thermometer 100 mm size |
| 41 | 19) Dial type thermometer 150 mm size with a set of alarm contact for 3.15 MVA and above transformer rating. |
| 42 | 20) Double float buchholz relay |
| 43 | 21) Rating plate made of stainless steel or brass or alumunium engraved with details as per specification including date of despatch of transformer after repair |
| 44 | 22) Earthing Terminals |
| 45 | 23) Air release valve |
| 46 | 24) Arcing horns for HT bushing and LT bushing non adjustable type |
| 47 | 25) Winding Temperature indicator with alarm |
| 48 | 26) Plain Capaliary type oil level guage to be provided on the oil conservator with low level indicator |
| 49 | 27) Magnetic type oil level gauge |
| 50 | 28) Marshalling box for transformers |
| 51 | 29) shut off valve (Gun metal ) 1 1/2\" |
| 52 | 30) Painting inside with two coat of Zinc chromate best paint and outside of transformer with two coat of grey paint and marking after derusting |
| 53 | 30.1) For 3.15 MVA Rating |
| 54 | 30.2) For 5.0MVA Rating |
| 55 | 30.3) For 8.0 MVA Rating |
| 56 | 31) To and Fro transportation charges from any of the circle store / Sub store to the work of the firm and back |
| 57 | 31) a)Loading & unloading charges at firm\"s works and Nigam\"s stores (Both Sides). |
| 58 | 31.a.1) For 3.15 MVA Rating |
| 59 | 31.a.2) For 5.0MVA Rating |
| 60 | 31.a.3) For 8.0 MVA Rating |
| 61 | 31. b) Transportation charges Per Km. |
| 62 | 31.b.1) For 3.15 MVA Rating |
| 63 | 31.b.2) For 5.0MVA Rating |
| 64 | 31.b.3) For 8.0 MVA Rating |
| 65 | 32) Charges for minor repair where replacement of coil is not involved |
| 66 | 32.1) For 3.15 MVA Rating |
| 67 | 32.2) For 5.0MVA Rating |
| 68 | 32.3) For 8.0 MVA Rating |
| 69 | 33) Labour charges for opening the transformer tank top cover(if required to facilitate maintenance of transformer) after removing required accessories.Including all required T&P Up to 5 MVA transformer. |
| 70 | 34) Preventing oil leakage by changing main gasket with material after removing cover. |
| 71 | 34.1) Upto 1.6 MVA transformer |
| 72 | 34.2) Above 1.6 MVA & upto 3.15 MVA transformer. |
| 73 | 34.3) Above 3.15 MVA & upto 5 MVA transformer. |
| 74 | 35) A) Change of HV/LV bushing gasket ring and rubber washers including supply of required material & draining /re-filling of oil as required. |
| 75 | 35) B)For additional HV/LV bushing work.* This amount will not be payable incase the work of removing of Top cover gasket is also awarded in the same order. |
| 76 | 36) Change of gaskets of valves/radiator / Buchhloze\"s Relay including cost of gaskets etc. |
| 77 | 36.1) Valve\"s/Buchhloze\"s Relay |
| 78 | 36.2) Radiator Valves. |
| 79 | 37) Providing & Fixing (including replacement) of HV/LV bushing ofreputed make& bushing rod of brass matel including cost of gasket & rubber rings .Gasket makes are TABROSS,TIGER, ZEBRA and any other reputed make. |
| 80 | 37.A) HV Side |
| 81 | 37.A.1) Upto 1.6 MVA transformer |
| 82 | 37.A.2) Above 1.6 MVA & upto 3.15 MVA transformer. |
| 83 | 37.A.3) Above 3.15 MVA & upto 5 MVA transformer. |
| 84 | 37.B) LV Side |
| 85 | 37.B.1) Upto 1.6 MVA transformer |
| 86 | 37.B.2) Above 1.6 MVA & upto 3.15 MVA transformer. |
| 87 | 37.B.3) Above 3.15 MVA & upto 5 MVA transformer. |
| 88 | 38) Dehydration/Filteration and reconditioning of transformer oil (electricity shall be supplied by deptt.) as per norms and testing thereof in presence of sub-station Incharge. |
| 89 | 39) Cleaning of oil scale deposits over the body and radiators of power transformer with thinner/detergent and de-rusting in perfect manner. |
| 90 | 39.1) Upto 1.6 MVA transformer |
| 91 | 39.2) Above 1.6 MVA & upto 3.15 MVA transformer. |
| 92 | 39.3) Above 3.15 MVA & upto 5 MVA transformer. |
| 93 | 40) Change of following items: |
| 94 | a) Oil temperature indicator |
| 95 | b) WindingTemperature indicator |
| 96 | c) Silica gel container |
| 97 | d) Presser relief device Make ATBUS |
| 98 | e) Magnetic oil level gauge.Make ATBUS |
| 99 | f) Gas operated Buchhloz relay( Double floating type make ATBUS) |
