|
| 1 | Centrifuging (filteration/dehydration) of transformer oil includingchecking initial and after filteration Dielectric Strength of oilfor transformers, Isolation transformers and voltage stabilizers located in various places of technical and domestic area with suitable machine having filteration, heating and pumping facility to improve the dielectric strength/insulation value of oil.Note :- (i) Di electric strength of oil after filteration/dehydration shall not be less than 55 kv.(ii) Oil for toping up shall be measured and paidseparately under relevant item of this schedule(iii) The contractor will take shut down orders in writing atleast two days in advance from Engr-in-charge before commencement of work.(iv) The dielectric strength of oil shall be tested before and after filtration and necessary test results shall be submitted to the Engr-in-charge.(b) Filtration /dehydration of transformer oil shall be carried out at the location where transformer is installed under the AOR of GE (North) Akhnoor and necessary filter/dehydration plant having pressure gauge, hour meter, temperaturature gauge to be brought at site by contractorincluding electric supply arrangement to run the dehydration equipment and rate deemed to be included in the quoted rate. |
| 2 | M & L for topping up/replacement of transformer oil with new transformer oil suitable for working voltage 11000 volts grade including necessary dehydration to achieve dielectric strength min 62 KV at 2.5 mm gap complete all as specified and directed. Note :- New transformer oil to be bought in company sealed ISI marked container with test certificate. |
| 3 | M & L for replacement of silica gel grains in the breather assembly of transformer complete all as specified and directed. |
| 4 | M & L for replacement of breather assembly made with polycarbonate base and clear acylic glass of size min 50mm dia, min 120 mm long or suitable size as per site requirement for transformer complete all as specified and directed. |
| 5 | M & L for replacement of transformer temperature gauge dial type having temp range 0 to minimum 120 degree celcius complete all as specified and directed. |
| 6 | M&L for openning of top cover at situ or at wksp by unscrewing all nuts, bolts & washers, draining out transformer oil upto required level and keeping in clean container for replacement of HT/LT bushings,cleanning/repair and refixing complete with new cork sheet gasket, existing/new nuts, bolts & washers for transformer indoor/outdoor type, refilling of oil all as specified and directed for transformer capacity upto100 KVA to 200 KVA, 11/0.433 KV volts grade.. (Note:-HT/LT bushings, Studs, Brass stud, Nuts, bolts & washers required shall be measured and paid separately under relevant items of the schedule) |
| 7 | All as per items No-06 here-in-before but for transformer capacity 250-400 KVA. |
| 8 | All as per items No-06 here-in-before but for transformer capacity 500-630 KVA. |
| 9 | M&L for replacement of transformer porcelain bushing outdoor/indoor type in situ/wksp suitable for 11 KV grade complete with brass studs, rubber bush, washers, nuts, checknuts and cork sheet gasket for the rating of 100 KVA to 200 KVA, 11/0.415 KV transformer complete all as specified and directed. |
| 10 | All as per items No-9 here-in-before but for transformer capacity 250-500 KVA. |
| 11 | M&L for replacement of transformer LT porcelain bushing indoor/outdoor type in situ/wksp suitable for 1100 volts grade complete with rubber bush, washers, nuts, checknuts and cork sheet gasket for the rating of 100KVA, to 200 KVA 11/0.433 KV transformer complete all as specified and directed. Note: Brass Stud shall be measured and paid separately under relavant item |
| 12 | All as per item No-11here-in-before but for transformer capacity 250-400 KVA, |
| 13 | All as per item No-11 here-in-before but for transformer capacity 500-630 KVA, |
| 14 | M&L for replacement ofbrass stud suitable for LT 1100 volts grade with con & rubber washer, double Brass nuts & brass washer at both end of stud for Tfr cap 100 KVA to 200 KVA. |
| 15 | All as per item Ser No-14 here-in-before but for transformer capacity 250-500 KVA |
| 16 | Taking out manually defective transformer of capacity 100 KVA to 200 KVA from its position by dismantling LT/HT cables, earthing and earthing stripupto road n. exc 3 KM and transportation by vehicle to workshop n. exc 30 KM and reinstallation at original position after repair or Shiting of transformer from present location to original location including connection of all HT/LT cabes, earthing and earthing strip and testing all as specified and directed. (Note:Rate deemed to included for disconnecting and reconnecting of necessary HT/LT cable/ACSR, earthing connection before and after installation) |
| 17 | All as per items No-16 here-in-before but for transformer capacity 250 to 400 KVA. |
| 18 | All as per items No-16 here-in-before but for transformer capacity 500 to 630 KVA. |
| 19 | M & L for lifting the transformer core carefully after dismantling terminal connections from core to HT/LT bushings, tap changer assy,drainout all oil and keeping in clean container and keeping the heating chamber for necessary value of insulation resistance, dismantling defective HT & LT coils from core for rewinding, and reassembling complete with HT/LT coils to core, required necessary numax paper insulation, insulating press board, precompressed board size of 6mm/3mm/1.5mm/1mm, varnishing, heating to achive insulation level not less than 1000 megaohms at both HT & LT side, core at transformer chamber, tap changer assy, terminal connection, top cover with new cork sheet gusket, required existing/new nuts, bolts & washers,filling transformer oil, testing after repair complete all as specified and directed for the 63 to 200 KVA, 11/0.415 KV transformer. Note:- (i) Opening of top cover, Rewinding of HT/LT coils,transformer oil, nuts, bolts & washers, HT/LT busings, required shall be measured and paid separately under relavant items of the schedule.(ii)Test result shall be kept in record duly signed by all concerned(iii) Testing record will be prepared by contractor. |
| 20 | All as per items No-19 here-in-before but for transformer capacity 250-315 KVA. |
| 21 | All as per items No-19 here-in-before but for transformer capacity 400-630 KVA. |
| 22 | M&L for rewinding of HT coils suitable for 11000 volts grade with new DPC/super enamelled copper wire having Class-F insulation as per existing size and turns for capacity of transformer 63KVA to 630KVA including dismantling and taking down old unserviceable copper wire complete all as specified and directed. |
| 23 | M&L for rewinding of LT coils suitable for 1100 volts grade with new DPC /super enamelled copper strip having Class-F insulation as per existing size and turns for capacity of transformer 63KVAto 630 KVA including dismantling and taking down old unserviceable copper wire complete all as specified and directed. |
| 24 | M&L for replacement of Tap changer assy having 7 position of transformer including dismantling and taking out old unserviceable one and dismantling all winding terminal connections and reconnecting after replecement complete upto transformer cap 630 KVA 11/0.433 KV. |
| 25 | M&L for painting of transformer outer surface installed at various electric sub station/ pump housed, in situ/wksp with one coat of synthetic enamel paint using sprayer for transformer capacity 100KVA to 400 KVA after preparation of old painted surface including writing M/C No. (Note : (i) During process of painting, transformer will be under shut down for the period and the rate deemed to be included for running the sprayer machine with own arrangement by contractor. (ii) After completion of painting HT/LT outdoor bushing, cable termination joint, Oil inspection glass and name plates to be made clean using volatile cleanner) |
| 26 | Supply and fixing copper fuse wire 60 Amp capacity complete all as specified and directed. |
| 27 | S&F in repair HT lightening arrester expulsion typewith all fittings discharging capacity 65 KA 11000 volts grade complete all as directed. Make :- Alstom/Oblum/Crompton Greaves. |
| 28 | Material and labour for earthing complete with galvanized steel plate electrodes of size 600x600x6mm thick buried directly in ground with earth pit not less than 2.25 meter deep below normal ground level with top edge of plate not less than 1.5 meter below normal ground level connected to galvanized strip of size 32 x 6 mm earth lead by means of nuts bolts check nuts GI washers earth wire protected by galvanized iron pipe 40 mm bore ( light grade) for poles/lightening arrestors/GO Switch/ transformer/panel including connection to HT overhead lines all as directed including concrete pit in PCC (1:3:6) type CI, precast RCC cover slab of size 55x55x15 cm with one handle for lifting made out of 8 mm diameter MS bar finnel wire mesh 20 mm bore galvanized iron pipe (medium grade) for watering charcoal or coke and salt in alternate layers necessary earth work in soft/loose soil complete all as shown in electrical plate No. 3 of SSR Part-I including testing on completion complete all as specified and directed. Note : (i) Result of earthing should be as per earth resistivity.(ii)The quoted rate shall include the cost of the earth pit covers to be conspicuously marked of plate with standgrouted in PCC. (iii) On testing after completion if the desired earth resistanceis more than 2Ώthe earthing will be redone at no extra cost. |
| 29 | Construction in replacement of transformer platform size 3mx2mx1m from ground incl XPM jalli fabricated with angle size 50x50x6mm and two coat of aluminum paint over one coat of red oxide incl steps plinth protection and all other relevant works complete all as specified. |
| 30 | Note:- Deduction for Schedule of credit (Sch \"A\" Part-II) to be made of ₹202385.00 from the total quoted amount of BOQ while accepting the bid. Details of schedule of credit is given in tender documents. |
