Paschimanchal Vidyut Vitran Nigam Limited has published Work Of Repair Of Damaged/Burnt Power Transformer Of Assorted Ratings 5 Mva , 8 Mva And 10 Mva. Submission Date for this Tender is 08-02-2021. Drainage Tenders in Urja Bhavan Victoria Park PVVNL Meerut Uttar Pradesh. Bidders can get complete Tender details and download the document.
Name of Work: repair of damaged/burnt power transformer of assorted ratings 70 nos. 5 MVA , 12 nos. 8 MVA and 45 no. 10 MVA 37.5/11 KV or 33/11 KV | |||||
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Sl. No. | Item Description | Item Code / Make | Tendered Quantity | Unit | |
1 | 1 | Preliminary inspection of transformers at PVVNL site/workshop involving minor repairs at site/workshop | a | 1 | per T/F |
2 | 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. | b | 1 | per T/F |
3 | 3 | HV leg coils complete with insulation, varnishing by vacuum impregnation (if required as per sample) and baking of coil assembly (variable base date 01.01.21) | c | 1 | per Kg |
4 | 4 | LV leg coils complete with insulation, vanishing by vacuum impregnation (if required as per sample) and baking of coil assembly (variable base date 01.01.21) | d | 1 | per Kg |
5 | 5 | HV bushing 33/37.5 KV | e | 1 | Each |
6 | 6 | LV Bushing 11 KV | f | 1 | Each |
7 | 7 | HV bushing metal parts | g | 1 | Each |
8 | 8 | LV bushing metal parts | h | 1 | Each |
9 | 9 | Set of gaskets (rubberized cork) | i | 1 | Each |
10 | 10 | Silicagel breather with fresh Silicagel | j | 1 | Each |
11 | 11 | Magnetic type oil level gauge with low level alarm contact | k | 1 | Each |
12 | 12 | Tapping switch 33/37.5 KV complete with handle | l | 1 | Each |
13 | 13 | Tapping switch handle | m | 1 | Each |
14 | 14 | Oil drain valve incorporating sampling device (with narrow orifice) & having suitable arrangement for locking | n | 1 | Each |
15 | 15 | Filter valve | o | 1 | Each |
16 | 16 | Dial type thermometer of minimum 150 mm dia with maximum temperature indicator complete with resetting device and alarm contacts | p | 1 | Each |
17 | 17 | Double float Bucholz relay complete with alarm and trip contacts | q | 1 | Each |
18 | 18 | Air release plug | r | 1 | Each |
19 | 19 | Replacement of damaged core | s | 1 | per kg |
20 | 20 | Pair of arcing horns | t | 1 | per pair |
21 | 21 | Radiator valve | u | 1 | per unit |
22 | 22 | Replacement of un repairable radiator of equivelent size with equal fins. | v | 1 | Per Sq. Mtr. |
23 | 23 | Overhauling of OLTC | w | 1 | LS |
24 | 24 | Replacement of OLTC contact | x | 1 | LS |
25 | 25 | Replacement of OLTC terminal barrier board | y | 1 | LS |
26 | 26 | Replacement of gaskets, lubrication of mechanical system | z | 1 | LS |
27 | 27 | M. S. Clamping ring | aa | 1 | per T/f |
28 | 28 | Winding temperature indicator (complete set) | ab | 1 | per T/f |
29 | 29 | Fresh transformer oil of standard quality as per IS:335/83 and latest amendment thereof.(variable base date 01.01.21) | ac | 1 | per Ltr. |
30 | 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. | ad | 1 | per T/f |
31 | 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. | ae | 1 | per T/f |
32 | 32 | Burnt/damaged leg coils to be retained by the contractor\n(variable base date 01.01.21) | af | 1 | per kg. |
33 | 33 | Damaged metal parts of bushing to be retained by contractor | ag | 1 | per kg. |
34 | 34 | Transportation/Carriage charges | ah | 1 | per nos. |
35 | 35 | Upto 10 kms. | ai | 1 | 1 nos |
36 | 36 | Above 10 kms. To 25 kms. | aj | 1 | 1 nos |
37 | 37 | Above 25 kms. To 50 kms. | ak | 1 | 1 nos |
38 | 38 | Above 50 km. To 100 kms. | al | 1 | 1 nos |
39 | 39 | Above 100 kms. To 150 kms. | am | 1 | 1 nos |
40 | 40 | Above 150 kms. To 200 kms. | an | 1 | 1 nos |
41 | 41 | Above 200 kms. But upto 300 kms. | ao | 1 | 1 nos |
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