Military Engineer Services-MES has published Repair Maintenance Of Ht 33 11Kv Protection System Rewinding Of Dehydration Transformer Oil And Connected Items Under Ge Clement Town , Dehradun. Submission Date for this Tender is 05-12-2020. Transformer Oil Tenders in GE CLEMENT TOWN Uttarakhand. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 23-Nov-2020 | corrigendom | Terms and Conditions | 30-11-2020 |
| 2 | 30-Nov-2020 | Amendment5 | Date | 05-12-2020 |
| Name of Work: REPAIR/MAINT OF HT 33/11 KV PROTECTION SYSTEM /REWINDING OF DEHYDRATION TRANSFORMER OIL AND CONNECTED ITEMS UNDER GE CLEMENT TOWN DEHRADUN | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Disconnecting existing power transformer of 3.15 MVA capacity from HT side(33KV) and LT side(11KV) including draining out and collecting burnt transformer oil from radiator fins and conservator decanning, dismantling of radiator fins conservator etc and keeping aside in safe custody all as specified and directed | 1 | Each Job | |
| 2 | 2 | Loading/unloading and transporting defective 3.15 MVA power transformer with the help of crane by using of hydrolic crane and loading on truck from sub station of GE Clement town and transport to approved nearby workshop/factory by road, after repair work completed including transporting back to MRS Clement Town 33 KV Yard | 1 | Each Job | |
| 3 | 3 | Disconnecting all in coming and outgoing cables, removing the transformer from the platform / two pole structure / floor and loading it in the vehicle carefully using crane and transporting it to the authorised workshop, carry out the required repairs and transport the transformer back to the site , install it, reconnect all the incoming and out going cables by properly crimping using lugs of suitable size, taping the bushes / bus bars, using insulation tape and testing complete of following capacity all as directed by Engr-in-Charge :- | |||
| 4 | 3.01 | (a) 500 to 630 KVA 11000/433 Volt Distribution transformer | 1 | Each Job | |
| 5 | 3.02 | (b) 200 to 315 KVA 11000/433 Volt Distribution transformer Note:- Gasket set, LT/HT side ceramic bushing, spindle for HT/LT side , rewinding,dehydration/filling of new oil shall be measured and paid separately in respective items. | 1 | Each Job | |
| 6 | 4 | Detailed inspection of transformer of cap 3.15MVA involving major repair work in transformer as detailed below : Opening of transformer cover, draining of oil if any, de-tanking core and coil assembly, replacement of damaged parts, minor repair of any part including core and tank(if required), cleaning, washing of dust and dirt etc from all parts including core and tank, cooling tubes of radiators, removal of damaged parts replacement, fitting and fixing of new parts, making connection and assembling complete in all respect, re-tanking after repairs, making transformer ready for test and testing for all test as per IS 2026(Part-I) -1997 para-16/Technical specification. Note:- Cost of the replacement parts will be paid under respective items as given below | 1 | Each Job | |
| 7 | 5 | carry out detailed inspection of transformer of cap mentioned below : Opening of transformer cover, draining out oil, de-tanking core and coil assembly,cleaning, washing of dust and dirt etc from all parts including core and tank, cooling tubes of radiators, taking out burnt out winding/insulation of LV / HV strips/coils , re-assembling of core and winding, drying out in vacuum chamber till specified IR values are obtained, complete insulation varnishing to be done and providing new gasket, nuts , bolts, and checking of leakages if any,rectifying the same by welding etc, replacement of silica gel and reassembling of complete transformer after carrying out necessary repair and replacement of defective items all as directed by Engr-in-Charge :-\nNote: (i)S&F of all materials required such as winding, LV/HV bushes, Silica gel breather etc will be measured and paid for separately\n | |||
| 8 | 5.01 | (a) 500 to 630 KVA 11000/433 Volt Distribution transformer | 1 | Each Job | |
| 9 | 5.02 | (b) 250 to 315 KVA 11000/433 Volt Distribution transformer Note :- (i) all necessary items required for cleaning of inner tank, limbs/cores are included in the rate Quoted (ii) Gasket set, LT/HT side ceramic bushing, spindle for HT/LT side and horn surge arrester for replacement shall be measured and paid under relevant item separately. | 1 | Each Job | |
| 10 | 6 | Supply only new HV leg coil complete insulation varnishing by vacuum impregnating (if required as per sample) and backing of coil assembly | 1350 | Kg | |
| 11 | 7 | All as per item No. 6 above but LV leg coil complete | 700 | Kg | |
| 12 | 8 | Supply only transformer oil confirming to IS 335 1993 for replacing/toping in power/distribution with dielctric strength not less than 60 KV transformer up of the oil level of transformers complete all as specified and directed. | 3200 | Ltr | |
| 13 | 9 | Supply only silica gel breather assembly with fresh silica gel for 3.15 MVA power transformer complete all as specified and directed. | 1 | Each Job | |
| 14 | 10 | Replacement of silica gel breather assembly with fresh silica gel for 500 KVA to 630 KVA complete all as specified and directed. | 1 | Each | |
| 15 | 11 | All as per srl item No 10 above but for 250 KVA to 315 KVA transformer complete all as specified and directed. | 1 | Each | |
| 16 | 12 | Supply only HT bushing with stud , seal etc for 500/630 KVA transformer complete all as specified and directed. | 3 | Each | |
| 17 | 13 | All as per srl item No 12 above but for 250 KVA to 315 KVA transformer complete all as specified and directed. | 3 | Each | |
| 18 | 14 | Supply only LT bushing with stud , seal etc for 500/630 KVA transformer complete all as specified and directed. | 4 | Each | |
| 19 | 15 | All as per srl item No 14 above but for 250 KVA to 315 KVA transformer complete all as specified and directed. | 4 | Each | |
| 20 | 16 | Supply only HV bushing with metal part 33 KV for 3.15 MVA transformer complete all as specified and directed. | 3 | Each | |
| 21 | 17 | All as per item no 16 above but for LV bushing with metal part 11 KV for 3.15 MVA transformer complete all as specified and directed. | 4 | Each | |
| 22 | 18 | Supply only insulating material of power transformer of cap 3.15 MVA complete all as specified and directed. | 1 | Each | |
| 23 | 19 | Supply and filling of insulating transformer oil confirming to IS 335 1993 for toping up in power/distribution transformer with dielctric strength not less than 60 KV complete all as specified and directed. | 900 | Ltr | |
| 24 | 20 | Filteration/ dehydration and cleaning of transformer oil by dehydration plant including testing of samples before and after dehydration and filtration. dielctric strength not less than 55 KV at 2.5 mm gap after dehydration all as specified and directed. | 17000 | Ltr | |
| 25 | 21 | M&L for replacement of silica gel breather assembly with silica gel for 200 KVA transformer to 630 KVA transformer complete all as specified and directed. | 10 | Each | |
| 26 | 22 | S& F in repairs to transformer 11 KV/433 Volts by disconnecting existng LT/HT connectin , drain out oil up to working level and changing of existing HT bushing with stud , seal etc complete all as specified and directed by Engg-in-charge/GE. | |||
| 27 | 22.01 | (a) 63/100 KVA | 12 | Each | |
| 28 | 22.02 | (b) 160/200/250 KVA | 18 | Each | |
| 29 | 22.03 | (c) 300/315/ 400 KVA | 9 | Each | |
| 30 | 22.04 | (d) 500/630 KVA | 6 | Each | |
| 31 | 23 | S& F in repairs to transformer 11 KV/433 Volts by disconnecting existng LT/HT connection , drain out oil up to working level and changing of existing LT bushing with stud , seal etc complete all as specified and directed. | |||
| 32 | 23.01 | (a) 63/100 KVA | 16 | Each | |
| 33 | 23.02 | (b) 160/200/250 KVA | 24 | Each | |
| 34 | 23.03 | (c) 300/315/ 400 KVA | 20 | Each | |
| 35 | 23.04 | (d) 500/630 KVA | 16 | Each | |
| 36 | 24 | S&F HV bushing 33 KV for 3.15/1.6 MVA transformer complete all as specified & directed. | 3 | Each | |
| 37 | 25 | S&F LV bushing 33 KV for 3.15/1.6 MVA complete all as specified & directed. | 4 | Each | |
| 38 | 26 | S&F dial type thermometer of 150 mm dia with max temp indicator complete with resetting device and alarm contacts etc complete all as specified & directed. | 2 | Each | |
| 39 | 27 | M&L for overhauling of auatomatic on load tap changer(OLTC) for 1.6 MVA transformer including replacement of defective parts as required at site and making the same functional to entire satisfaction of Engr-in-Charge complete all as specified and directed | 1 | Each Job | |
| 40 | 28 | M & L for replacement of Gun metal gate valve 25 mm dia form transformer drain out pipe complite all as specified and directed | 4 | Each | |
| 41 | 29 | M & L for replacement of Gun metal gate valve 40 mm dia from transformer drain out pipe complite all as specified and directed | 6 | Each | |
| 42 | 30 | M&L for PVC insulated single core, aluminium conductor of size 35 Sqmm of red, yellow, blue and black (phase indication) for jumper connections for 33/11 KV line complete all as specified and directed. | 100 | RM | |
| 43 | 31 | S&F in replacement cable jointing kit 11 KV (Earthed) grade cable for outdoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminum conductor cabe of size 50 to 95 sqmm , complete all as specfied and directed. | 8 | Each | |
| 44 | 32 | All as per item No 31 here in before but of size 120 to 185 Sqmm complete all as specified & directed. | 10 | Each | |
| 45 | 33 | All as per item No 31 here in before but indoor of size 50 to 95 Sqmm complete all as specified & directed. | 7 | Each | |
| 46 | 34 | All as per item No 31 here in before but indoor type of size 120 to 185 Sqmm complete all as specified & directed. | 9 | Each | |
| 47 | 35 | S&F in replacement cable jointing kit 11 KV (Earthed) grade cable for straight through heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm, complete all as specified and directed. | 4 | Each | |
| 48 | 36 | All as per item No 35 above but of size 120 to 185 Sqmm complete all as specified & directed. | 7 | Each | |
| 49 | 37 | S&F in replacement triple pole, mechanically operated gang operated air break switch mounted on insulator (Three post insulator for each phase ) and steel frame complete with operating mechanism worked from ground level with heavy tinned non ferrus metal spring loaded copper contact silver/tin plated at contact points with locking arrangement for correct rating upto 800 Amps suitable for 33000 volts grade complete all as specified and directed. | 1 | Each | |
| 50 | 38 | M&L for painting of transformer after cleaning the body surface of transformer by rubbing with emery Paper to remove oil stains, dust etc and applying one coat of snthetic enamel paint by spray paint incl writing SM No/MES No , capacity of transformer of following capacity all as directed by Engr-in-Charge | |||
| 51 | 38.01 | (a) 400 to 630 KVA 11000/433 Volt Distribution transformer | 7 | Each | |
| 52 | 38.02 | (b) 200 to 315 KVA 11000/433 Volt Distribution transformer | 10 | Each | |
| 53 | 38.03 | (c) 100 to 150 KVA 11000/433 Volt Distribution transformer | 6 | Each | |
| 54 | 39 | Taking down old unserviceable U/G cable of 11 KV of size 120 Sqmm 3 core complete all as specified & directed. | 450 | RM | |
| 55 | 40 | Supply and laying in repalcement connectiang and testing XLPE armoured electric power cable (heavy duty ) 11000 Volts (Earthed) grade with stranded aluminium conductor of size 120 sqmm 3 core complete all as specified and directed. | 450 | RM | |
| 56 | 41 | Excavation in trenches in any type of soil and n.exc 1.5 m wide and n.exc 1.5 m in depth for laying under ground cable and fixing poles, stay etc and getting out complete all specified and directed. | 160 | Cum | |
| 57 | 42 | M&L for dry river sand filling in trenches around the cable protection in layers not exc 25 cm complete all as specified and directed. | 30 | Cum | |
| 58 | 43 | M&L for un-reinforced precast concrete cable cover class HV, type 1 flat of size 300mmx180mm x 40mm as cable protection complete all as specified and directed. | 2000 | Each | |
| 59 | 44 | Returning , filling in, any type of soil including spreading, leveling, watering and well ramming in layers n.exc 250mm thick, complete all as specified and directed. | 90 | Cum | |
| 60 | 45 | Removing excavated material (surplus soil) to a distance not exceeding 50m and depositing where directed at a level n.exc 1.5 m above the starting point, complete all as specified and directed. | 70 | Cum | |
| 61 | 46 | Supply only Aluminium Lugs 25/35 sqmm | 200 | Each | |
| 62 | 47 | All as per srl item No 46 above but aluminium of size 50 sqmm | 200 | Each | |
| 63 | 48 | All as per srl item No 46 above of size 70 sqmm | 200 | Each | |
| 64 | 49 | All as per srl item No 46 above but of size 95 sqmm | 400 | Each | |
| 65 | 50 | All as per srl item No 46 above but of size 120 sqmm | 400 | Each | |
| 66 | 51 | All as per srl item No 46 above but of size 150 sqmm | 200 | Each | |
| 67 | 52 | All as per srl item No 46 above but of size 185 sqmm | 150 | Each | |
| 68 | 53 | All as per srl item No 46 above but of size 240 sqmm | 250 | Each | |
| 69 | 54 | All as per srl item No 46 above but of size 300 sqmm | 300 | Each | |
| 70 | 55 | Supply only HT fuse suitable for 11 KV of rating 10 amp | 15 | Roll | |
| 71 | 56 | Supply only PVC insulation tape 15mmx25 Mtr | 500 | Roll | |
| 72 | 57 | Supply only PVC insulation tape 20mmx25 Mtr | 300 | Roll | |
| 73 | 58 | Supply only HT tape 0.6mm thick x19 mm | 200 | Each | |
| 74 | 59 | Supply only empire tape 25mm wide | 75 | Roll | |
| 75 | 60 | Supply only rubber hand glove suitable for 11 KV | 10 | Pair | |
| 76 | 61 | S&F as in repair lightening arresters expulsion type complete with all fittings transmission class, discharge capacity 65 kilo amp suitable for 11000 volts as complete all as specified & directed. | 5 | Set | |
| 77 | 62 | All as per srl item No 61 above but for 33000 volts | 1 | Set | |
| 78 | 63 | M&L for triple pole mechanically operated mounted on insulator and steel frame with operating mechanism worked from ground level for current rating upto 200 amps suitable for 11000 volts comprising 9 insulator and expulsion fuse single pole -03 Nos complete all as specified & directed. | 7 | Each | |
| 79 | 64 | M&L for earthing complete with galvanished steel earth plate electrode 600x600x6.0 mm thick buried directly in ground and earth pit not less than 2.25 mtr deep below NGL and top edge of the plate not less than 1.5 Mtr deep below NGL, surrounded with adequate qty of char coal dust mixed with salt to a packed thickness not less than 15 Cm on all sides of earth plate incl excavation, earth work, returning filling in , removal of surplus soil to a distance in n.exc. 50 mtr using galvanised iron strip 32x6mm as earthing lead etc to earth plate one end connected to continuous earth wire incl GI pipe watering light grade with CI funnel and wire mesh and PCC 1:2:4 type B-1 as in pit chamber and RCC pit cover 50mm thick precast RCC 1:2:4 type B-1 duly re-enforced with MS bar 6mm dia @ 150mm C/C both ways with 10mm dia MS bar lifting handles, all as described in electric plate No. 3 of SSR part-I complete all as specified and directed. | 10 | Each | |
| 80 | 65 | Monthly maintenance to be carried out for all power/distribution transformers (04 Nos power transformer & 41 Nos distribution transformer) and record of register to be maintained for following check points and put up to Engr-in-Charge on monthly basis. In addition weekly, at the peak load time per hour reading to be noted down for all distribution transformers and if found excess to rated current or unbalanced, informed to JE concerned so that excercise for balancing of LT load can be done. The maintenance shedule comprising of :- (i) Cleaning of bushes, removal of dust on external surfaces (ii) Checking of oil level in conservator and gauge glass if found low info to JE concerned and top up. (iii) Checking of silica zel in breather if not found blue in colour change it (iv) Checking of oil seal of breather and top up if any (v) Checking of HG fuse and LT fuse (vi) Checking of terminal loose connection if found loose, tightened it (vii) Checking of earthing of all power/distribution transformers Note :- (i) Materials if needed for monthly maintenance schedule, JE External /Engr-in-Charge will provide the required materials (ii) T&P for checking of earthing etc will be provided by contractor | 6 | Each Job |
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