REPAIR/ MAINT OF DISTRIBUTION TRANSFORMERS INCLUDING DEHYDRATION PAINTING, EARTHING AND REPLACEMENT OF SPARE PART AT ROORKEE AND PURKAZI UNDER GE (MES) ROORKEE

Material and labour for disconnecting of distribution transformer indoor/outdoor type for testing/servicing /cleaning / repair etc, ensuring safety isolation and testing (IR values for HV/LV windings & winding-to-earth) oil level & condition checking (visual and BDV test), checking of bushings, including external inspection and re-connecting after carrying out required repair/testing servicing in the transformers. Recording of all test parameters and preparation of service report for the following capaity of Transformer :- NOTE :-(i) The cost of dismantling and assembly is deemed to be including. (ii) work to be carried out by qualified personael to ensure safe and reliable operation. Preventing maint/servicing of transformer will be carried out by any equipment manufacture/certified firm and work to be carried out as per standrded and recommendations complete in all respect. All test perameter service and report shall be submitted by contractor. (iii) If the transformer winding as per testing is burnt the reason for same should be mentioned in report and count

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 750 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 750 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 750 KVA transformer

NOTE pertains to Ser No 03 to 3.3 :-(i) The contractor shall produce test certificate as per IS-2026 alongwith high voltage test from the firms after repair. (ii) To accertain the fault of transformer at installed location, the transformer will be tested with HT 10KV magger, multimeter in the presence of AGE E/M/JE E/M. All T&P required like HT magger 10KV, multimeter and cables will be arrenged by contractor. (iii) All the transformer shall be opened in presence of Engr- in- Charge/ his rep veryfy the various repairs/replacement involved and the transformer shall be assembled in the presence of Engr- in- Charge/his rep after necessary repairs/replacement. (iv) All the transformer shall be tested in the factory in the presence of Engr- in- Charge/ his rep, as per ser note No (i) above and also in addition the transformer where specified to be installed and commissioned on the 2/4 pole structure, platform and also shall be tested by the contractor in the presence of Engr- in- Charge/his rep. (v) All the testing arrangement shall be provided by the contractor without any extra payment. (vi) The contractor shall also furnished a guarantee certificate himself for rectification of the defects. If any noticed defect during liability period for 01 year from the certified date of completion. (vii) The above shall however does not absolve the responsibility of the contractor for rectification of any defect, if any noticed during guarantee period of 01 year as per condition 46 of IAFW-2249 and the contractor shall be solely responsible for entire completion of work and for rectification of the defect/replacement of items/parts and required pointed out by the GE during defect liability period of 01 year. Payment only for dehydration of the transformer oil and painting of the transformers replacement of certain items considered separately here- in- after shall only be made for separately all other minor repair/replacement as required and ordered by the Engr- in- Charge for entire completion of work shall be deemed to be included in the unit rate of the above items. (viii) The contractor shall also clear the breathers. The unit rate quoted by the contractor shall included this aspect also. (ix) Contractor shall provide all arrangement for carefully handling/conveyance of/ transportation of equipment by means of crane/chain pully/recovery van and vehicles as per requirements and directed by Enge- in- Charge. (x) Transformer oil tank rubberised 6.0mm thick gasket sheet pasted using gasket cement, oil level gauge, drain valve, painting inner side tank by zinc chromate paint and outer side by approved paint include in this item rate. (xi) The rate quoted by contractor shall include all these aspect from (i) to (x) while quoting his tender that quoted rate also include the provision of providing electric connection to exisiting system.

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 5000 to 750 KVA transformer

M&L Segregation of HT leg coil from transformer and making new HT leg coil with insulating copper wire of required gauge craft paper cotton tape HT/LT insulation as per as per IS specification of old transformer including ovening & heating after marking of coil as required of following capacity.

M&L Segregation of HT leg coil from transformer and making new LT leg coil with insulating copper wire of required gauge craft paper cotton tape HT/LT insulation as per as per IS specification of old transformer including ovening & heating after marking of coil as required of following capacity.

Dehydration/ filtration of transformer oil of existing transformer installed at site with portable plant to improve the dielectric strength 50 KV during filling after initial filtration including testing of dielectric strength after dehydration at site NOTE :- (i) All arrengement of DG set of suitable capacity of electric supply for running of dehydration plant, T&P and other items required will be arranged by contractor and deem to be included in the cost of dehydration/filtration and nothing extra on this account will be admissiable. Any damage after filtration shall be solely responsible of Contractor & same shall be repaired without any additional cost. (ii) Dehydration report will be submitted by the contractor. (ii) the case the result is not desirable payment will not made to the contracor

Supplying, filling dehydration and filtration of new transformer oil for toping up/replacement of transformer oil having dielectric strength not less than 60 KV(rms) with gap of 2.5 mm all as conforming to IS 335 of 1993 complete all as specified and directed by Engineer-in-Charge.

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 1000 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 1000 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 1000 KVA transformer

Material and labour for replacement of worn out porcelain bushing for .433 KV LT side indoor /outdoor transformers with rubberised cork sheet washers 4mm thick all as required at site and as directed by engineer in charge suitable for following capacity transformers:-

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 1000 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 1000 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 1000 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 750 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

Upto 250 KVA transformer

above 250 to 500 KVA transformer

above 500 to 750 KVA transformer

NOTE :- (i) Item No 9 to 19 : Required condtion and equipments as per standard for replacement of spare to be manitained by conctractor and included in item rate