Repair and Maint of Transformers HT Equipments Earthing Dehydrations of Transformer and Certain EM works under GE East Jalandhar Cantt

Amount

M & L for detecting leakage from transformer complete by removing HT & LT supply connections, decanning oil for reuse, opening top cover, removing, scraping of old worn out gasket of oil tank and fixing of cork gasket sheet on the tank top cover and pasted by using suitable adhesive for the transformer, removing old bushing rod with gasket/ packing and fixing bushing rod with gasket complete for transformer of any type/make of capacity 50 to 160 KVA including re-filling oil after heating & dehydration, making necessary electric connections and testing complete on site in existing location (at plinth/in CSS/at pole structure) complete. Note : (i) The items replaced shall be measured under relevant items mentioned at Sr No 1.01 to 1.05 Supply only. (ii) The said work shall has to be carried out at site, if contractor shifts/transport the same to workshop for repair due to non availability of labour at site. Nothing extra shall be admissible on account of this. Hence contractor shall quote his rate accordingly

Supply only Top cover cork gasket sheet 6mm thick min

Supply only LT brass bushing rod with nuts and washer

Supply only LT bushing rod gasket and oil seals

Supply only HT brass bushing rod with nuts and washer

Supply only HT bushing rod gasket and oil seals

M & L for detecting leakage from transformer complete by removing HT & LT supply connections, decanning oil for reuse, opening top cover, removing, scraping of old worn out gasket of oil tank and fixing of new cork gasket sheet on the tank top cover 6.0 mm thick and pasted by using suitable adhesive for the transformer, removing old bushing rod with gasket/ packing and fixing bushing rod with gasket complete for transformer of any type/make of capacity 200 to 315 KVA including re-filling oil after heating & dehydration, making necessary electric connections and testing complete on site in existing location (at plinth/in CSS/at pole structure) complete. Note : (i) The items replaced shall be measured under relevant items mentioned at Sr No 2.01 to 2.05 Supply only. (ii) The said work shall has to be carried out at site, if contractor shifts/transport the same to workshop for repair due to non availability of labour at site. Nothing extra shall be admissible on account of this. Hence contractor shall quote his rate accordingly

Supply only Top cover cork gasket sheet 6mm thick min

Supply only LT brass bushing rod with nuts and washer

Supply only LT bushing rod gasket and oil seals

Supply only HT brass bushing rod with nuts and washer

Supply only HT bushing rod gasket and oil seals

M & L for detecting leakage from transformer complete by removing HT & LT supply connections, decanning oil for reuse, opening top cover, removing, scraping of old worn out gasket of oil tank and fixing of new cork gasket sheet on the tank top cover 6.0 mm thick and pasted by using suitable adhesive for the transformer, removing old bushing rod with gasket/ packing and fixing bushing rod with gasket complete for transformer of any type/make of capacity 400 to 630 KVA including re-filling oil after heating & dehydration, making necessary electric connections and testing complete on site in existing location (at plinth/in CSS/at pole structure) complete. Note : (i) The items replaced shall be measured under relevant items mentioned at Sr No 3.01 to 3.05 Supply only. (ii) The said work shall has to be carried out at site, if contractor shifts/transport the same to workshop for repair due to non availability of labour at site. Nothing extra shall be admissible on account of this. Hence contractor shall quote his rate accordingly

Supply only Top cover cork gasket sheet 6mm thick min

Supply only LT brass bushing rod with nuts and washer

Supply only LT bushing rod gasket and oil seals

Supply only HT brass bushing rod with nuts and washer

Supply only HT bushing rod gasket and oil seals

Taking down carefully transformer of capacity 50 KVA to 160 KVA any type from platform 2 or 4 pole structure by disconnecting HT, LT & earthing connections, testing diagnosing of fault, transporting in suitable conveyance to workshop from site including loading, unloading reqd at site, workshop complete incl testing for checking fault, decanning of transformer oil and keeping in safe custody for reuse after carrying out repair, opening the top cover, dismantling & step opening, removing LT/HT bushing connections, taking out HT & LT coils in the presence of Engineer-in-charge, taking out complete unserviceable core assembly and inserting/ fixing new LT & HT coils made of suitable size winding wire, existing tap changer fitting with connections, setting the HT/ LT coils, varnishing including replacement of insulating material, pasting/ fixing the rubberised cork sheet with quick fix adhesive, fixing HT & LT side bushing rod with cork sheet gaskets, seals and reassembling, filling of existing dehydrated/ new transformer oil of approved quality for topping up and testing, transporting back in suitable conveyance at his location and making all connection of HT and LT sides complete including testing and commissioning of transformer on load complete all as specified. Note: (i) Re-winding of HT/LT coils, replacement of other defective/ unserviceable parts to be replaced and re conditioning of LT coil shall be measured and paid for seperately. (ii) Dehydration of existing oil shall be measured and paid for seperately under relevant item of Sch. (iii) The new transformer oil if required shall be measured and paid seperarately under respective items. (iv) The rate quoted include the cost of replacing all cork sheet gasket of tank & bushing. (v) The rate quoted includes cost of transportation and any crane, vehicle reqd. (vi) The rate quoted includes cost of Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (vii) The rate quoted includes cost of Cleaning of complete transformer tank oil fins, removing of sludge, and making the inside surface of tank dry by blowing of hot air as directed and specified. (viii) The rate quoted include cost of any type of T&P reqd for testing. (ix) The rate quoted include cost of any other items/ work which are required for repair of transformer but not mentioned here.

All as per item No. 4 here-in-before but transformer of capacity 200 KVA to 315 KVA

All as per item No. 4 here-in-before but transformer of capacity 400 KVA to 630 KVA

Taking out the transformer of capacity 400 KVA any type with disconnection of HT and LT cable, bus bar, earth connections, diagnosing the fault, unscrewing fasteners and by opening upper and side cover carefully of package/ compact substation and transporting transformer in suitable conveyance to workshop from site including loading, unloading reqd at site, workshop complete incl checking fault, decanning of transformer oil and keeping in safe custody for reuse after carrying out repair, opening the top cover, dismantling & step opening, taking out HT & LT coils in the presence of Engineer-in-charge, taking out complete unserviceable core assembly and inserting same in transformer body after replacing the coils made of winding wire of suitable size, existing tap changer fitting with connections, setting the HT/ LT coils, varnishing including replacement of insulating material, pasting the rubberised cork sheet with quick fix adhesive, replacing HT & LT side bushing rod cork sheet gaskets and reassembling filling of dehydrated/ new transformer oil of approved quality for topping up and testing, transporting back in suitable conveyance to site and fixing in PSS/ CSS, fixing side covers of PSS/CSS incl making a+B35ll connection of HT and LT sides complete including testing of transformer on load complete all as specified. (i) Re-winding of HT/LT coils, replacement of other defective/ unserviceable parts to be replaced and re conditioning of LT coil shall be measured and paid for seperately. (ii) Dehydration of existing oil shall be measured and paid for seperately. (iii) The new transformer oil if required shall be measured and paid seperarately under respective items. (iv) The rate quoted include the cost of replacing all cork sheet gasket of tank & bushing. (v) The rate quoted includes cost of transportation and any crane, vehicle reqd. (vi) The rate quoted includes cost of Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (vii) The rate quoted includes cost of Cleaning of complete transformer tank oil fins, removing of sludge, and making the inside surface of tank dry by blowing of hot air as directed and specified. (viii) The rate quoted include cost of any type of T&P reqd for testing. (ix) The rate quoted include cost of any other items/ work which are required for repair of transformer but not mentioned here.

Material and labour for rewinding of burnt/ over heated HT/ LT limbs of transformers 11 KV/ 433 volts, 3 phase of capacity 50 to 160 KVA by using double paper covered (DPC) insulation, cotton tape, superior quality insulated copper wire of suitable gauge, size, specification and drying, curing in oven including reqd press board complete all as specified.

Material and labour for rewinding of burnt/ over heated HT/ LT limbs of transformers 11 KV/ 433 volts, 3 phase of capacity 200 to 400 KVA by using double paper covered (DPC) insulation, cotton tape, superior quality insulated copper wire of suitable gauge, size, specification and drying, curing in oven including reqd press board complete all as specified.

Material and labour for rewinding of burnt/ over heated HT/ LT limbs of transformers 11 KV/ 433 volts, 3 phase of capacity 500 to 630 KVA by using double paper covered (DPC) insulation, cotton tape, superior quality insulated copper wire of suitable gauge, size, specification and drying, curing in oven including reqd press board complete all as specified.

Material and labour for rewinding of burnt/ over heated HT/ LT limbs of transformers 11 KV/ 433 volts, 3 phase of capacity 50 to 160 KVA by using double paper covered (DPC) insulated, cotton tape, superior quality aluminium winding wire /conductor of suitable gauge, size, specification and drying, curing in oven including reqd press board complete all as specified.

Repairs / reconditioning of HV/LV leg coil aluminium / copper for transformer of capacity upto 500 KVA including cleaning, removing old winding wire/strip extending striip by brazing/ soldering with new strip incl replacing insulation, varnishing by vaccum impregnation and baking of coil assembly incl any other item reqd complete all as specified and directed.

S & F aluminium P G Clamp of transformer of 11/0.433 KV of size 4 to 6 inch complete all as specified and directed.

Dehydration and filteration of existing transformer oil using transformer oil filteration plant/ machine to eliminate moisture and foreign particles till improved di-electric strength of oil upto 60 KV (minimum) at a 2.5mm electrode gap retrieved and to bring the acidity within the permissible limit below 0.5 mg KOH/Cm all as specified and directed.

Supply and filling of transformer oil in sealed containers having di-electric strength 65 (minimum) at a electrode gap of 2.5mm upto the required level of transformer and testing of di-electric strength of oil in transformer before and after filling. (Transformer oil to be supplied in sealed container).

Material & labour for spray painting of transformers of capacity 50 KVA to 160 KVA of any type and at any location & make with two coats of synthetic enamel paint (smoke grey) after thoroughly cleaning of dust, scale, grease, dirt and other foreign material and removing of existing paint and preparation of surfaces including writing of capacity and SM No./ MES No. on transformers complete all as specified and directed.

Material & labour for spray painting of transformers of capacity 200 KVA to 400 KVA of any type and at any location & make with two coats of synthetic enamel paint (smoke grey) after thoroughly cleaning of dust, scale, grease, dirt and other foreign material and removing of existing paint and preparation of surfaces including writing of capacity and SM No./ MES No. on transformers complete all as specified and directed.

Material & labour for spray painting of transformers of capacity 500 KVA to 630 KVA of any type and at any location & make with two coats of synthetic enamel paint (smoke grey) after thoroughly cleaning of dust, scale, grease, dirt and other foreign material and removing of existing paint and preparation of surfaces including writing of capacity and SM No./ MES No. on transformers complete all as specified and directed.

Material & labour for spray painting of transformers of capacity 8MVA of any type and at any location & make with two coats of synthetic enamel paint (smoke grey) after thoroughly cleaning of dust, scale, grease, dirt and other foreign material and removing of existing paint and preparation of surfaces including writing of capacity and SM No./ MES No. on transformers complete all as specified and directed.

Supply and fixing transformer oil temperature gauge 0 - 100 graduated. Analogue dial type, suitable for transformer of capacity 50 KVA to 160 KVA suitable as per existing make and type complete all as specified & directed by Engineer-in-Charge.

Supply and fixing transformer oil temperature gauge 0 - 100 graduated. Analogue dial type, suitable for transformer of capacity 200 KVA to 400 KVA suitable as per existing make and type complete all as specified & directed by Engineer-in-Charge.

Supply and fixing transformer oil temperature gauge 0 - 100 graduated. Analogue dial type, suitable for transformer of capacity 500 KVA to 630 KVA suitable as per existing make and type complete all as specified & directed by Engineer-in-Charge.

Supply & fixing silica gel breather assembly for transformer of capacity 50 KVA to 160 KVA with silica gel filled complete all as specified & directed by Engineer-in-Charge.

Supply & fixing silica gel breather assembly for transformer of capacity 200 KVA to 400 KVA with silica gel filled complete all as specified & directed by Engineer-in-Charge.

Supply & fixing silica gel breather assembly for transformer of capacity 500 KVA to 630 KVA with silica gel filled complete all as specified & directed by Engineer-in-Charge.

Supply & fixing silica gel breather assembly suitable for transformer 66 KV/ 11 KV of capacity 8000 KVA as per existing make and type complete all as specified & directed by Engineer-in-Charge.

Supply and filling of fresh and dry silica gel inside the breather pocket and fixing properly with transformer including painting the outer surface of the breather assembly

Supply & replacement of defective tap changer switch assembly complete with tapping arrangement suitable to steping up/ down of 2.5% voltage normal tapping suitable for transformer 11 KV/ 433 volts, 3 phase of capacity including making connections and testing commissioning 400-500 KVA complete all as specified & directed by Engineer-in-charge.

Supply, fixing and testing after jointing Cable Jointing Kit for 11 KV grade cable for outdoor type termination cold shrinkable joint complete with jointing material and accessories suitable for XLPE armoured aluminum cable of size 240-300 sqmm 3 core.

Supply, fixing and testing after jointing Cable Jointing Kit for 11 KV grade cable for indoor type termination cold shrinkable joint complete with jointing material and accessories suitable for XLPE armoured aluminum cable of size 240-300 sqmm 3 core.

Supply, fixing and testing after jointing Cable Jointing Kit for 11 KV grade cable for outdoor type termination cold shrinkable joint complete with jointing material and accessories suitable for XLPE armoured aluminum cable of size 95 sqmm to 185 Sqmm 3 core.

Supply, fixing and testing after jointing Cable Jointing Kit for 11 KV grade cable for indoor type termination cold shrinkable joint complete with jointing material and accessories suitable for XLPE armoured aluminum cable of size 95 sqmm to 185 Sqmm 3 core.

Material and labour for clearing of cable trench all as per satisfaction of engr in charge and sand filling in a layer of 25 mm thick, over cable in open trench at indoor sub stations complete all as specified and directed.

Earthing complete with galvanised steel earth plate electrode 60cmx60cmx6mm thick buried directly in ground vertically at a depth not less than 2.25 metres below normal ground level with top edge of the plate at a depth not less than 1.5 metres below normal ground level, connected with and including GI strip 32mm x 6mm upto test point and incl Aluminium strip 25x3.15mm from test point to equipment and including GI pipe 40mm bore light grade as protection pipe (from top of earth plate up to the test point) by means of GI bolts, nuts, check nuts and washers of GI and thimbles, earth plate surrounded by packed layers of charcoal dust and common salt 15cm thick, all around including top and bottom and watering pipe 20mm bore of GI pipe light grade with funnel and wire mesh, PCC chamber of size 300x300x300mm (top of chamber minimum 15 cm above the normal ground level (1:3:6) using 20mm graded stone aggregate and RCC cover (1:2:4) type B-I using 20mm graded crushed stone aggregate with 1 nos MS handles of 8mm dia including necessary excavation/ earth work in any type of soil/rock and as shown in Electrical plate No. 3 of SSR Part-I (2009) testing on completion complete all as specified.

Cleaning and preparation of old painted surface of 4 pole structure and painting with one coat of aluminium paint to all steel structure such as channel/brackets, bracing, clamps, anti climbing device, cross arms and marking 30 cm high alternate yellow & black strips with synthetic enamelled paint upto 1.5 mtr height and writing pole Nos and applying one coat of cement base paint on complete PCC pole and coping complete all as specified and directed.

Supply and fixing in replacement of galvanised pipe light grade of ISI marked 100 mm bore for passing of cable fixed to poles/walls/lay under floor complete with and including fittings as required compete all as specified and directed by Engr-in-charge.

Supply and fixing Danger notice plate for HT of 25 cm x 20 cm x 1.6 mm thick mild steel sheet vitreous enameled white, with letters figures and conventional skull and bones and written as "DANGER" in signal red colour and fixed with MS clamps made out of MS flat 25 mm x 3mm , including nuts & bolts, including 2 coats of aluminium paint over a coat of red oxide primer all as specified. (Letters shall be written in English, Hindi and Punjabi)

Supply and fixing Pin type insulator porcelain viterous white brown or green incl one galvanised mild steel spindle two galvanised iron washer and one galvanised iron nuts 150 mm height, 150 mm dia for 11000 volts grade. Make Jaipuria/ Rashtriya

Supply and fixing HT Lightning Arrestor Metal Oxide Type (Gap less) heavy duty single pole suitable for system voltage of 12 KV and working rated arrestor voltage 9 KV with normal discharge current of 10 KA all as per IEC 99.4 effectively earthed complete all as specified and directed. Make Jaipuria/ Rashtriya/ Oblum

Supply, laying, jointing and testing under ground XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured electric power cable (heavy duty) with stranded aluminium conductor, 11000 volts grade earthed system of size 95 sqmm 3 core conforming to IS-7098 (Part-II) 1985 laid in trenches, in floor, in duct, through pipes or along the pole including taking out unserviceable HT cable complete all as specified and directed.

Supply, laying, jointing and testing XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured electric power cable (heavy duty) with stranded aluminium conductor, 11000 volts grade earthed system of size 120 Sqmm 3 core conforming to IS-7098 (Part-II) 1985 laid in trenches, in floor, in duct, through pipes or along the pole including taking out unserviceable HT overhead conductor complete all as specified and directed

Shifting of retrieved serviceable cable in any length recd complete collecting from store to reqd site and Relaying of 11 KV HT Cable off size carefully at diff route in trench including connecting to existing/new system incl testing, commissioning complete all as specified and directed by Engineer-in-Charge. Note: The excavation and related civil wk will be measured and paid separately.

Taking down/ out HT cable off sizes from trench & pole including disconnecting all electrical connections and depositing serviceable cable in MES store yard for Re-use at same or other site in cantt upto 1 km and removing unserviceable cable from site to take credit. Note: The excavation and related civil wk will be measured and paid separately.

Excavation in trenches in soft/loose soil not exceeding 1.50 mtr wide and not exceeding 1.50 mtr in depth for laying of cables and getting out complete all as specified and directed by Engineer-in-Charge.

Returing, filling in, including spreading, leveling watering and well ramming inlayers not exceeding 25 cms thick each layer compete all as specified and directed by Engineer-in-Charge.

Removal of surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed by Engr-in-charge.

Material and labour for sand cushioning with a layer of sand 8cm thick before laying of cable and 15 cm thick after laying of cable and punned down to thicknes of 18cm in trenches complete all as specified.(Note: Punned thickness of 18 cm will be measured)

Supply & laying un-reinforced precast concrete cable cover, class HVP, type I, flat, size 300mm x 180mm x 40mm laid flat in trenches over the cable with the length of brick perpendicular to the direction of cable length, adjacent/abutting each other complete all as specified and directed by Engineer-in-charge.

Relaying of existing retrieved bricks/PCC cover laid in trenches for cable protection perpendicular to the direction of cable length, adjacent abutting each other complete all as specified and directed.

M&L for testing of earth pit with earth resistance tester including cleaning of earth pit inner side and 2 mtr all around on all side and leveling, whitewash of pit and necessary repair to PCC earth pit (1:3:6) type C-2 RCC covered with replacement of PCC/CI cover hinged with frame including required excavation, earth and brick work complete incl handing over testing record register to concerned JE. Note: if earth testing result not found satisfactory contractor have to make new earthing , payment of new earthing will be paid in other item of Schedule. all as specified. The rate quoted include cost of any type of testing equipment, T&P reqd at site.

M&L in replacement for MS angle/ flat and frame along the edges of cable ducts inside of sub stations grouted in PCC (1:3:6)/ fixed with screw by drilling holes duly painted with two coats of synthetic enamel paint (as directed) over a coat of red oxide primer fixed in replacement complete all as specified and directed

M & L for mild steel chequered plate 8 mm thick or over in thickness in available sizes of grade Fe-290 (Gde-E-165) cutting, finishing of edges and put up the same on cable ducts complete as per width of duct and painting with enamelled paint including taking out to all existing broken RCC duct cover including preparing surface and painting with two coat of black paint all as specified and directed

Material and labour for cleaning 2 pole/ 4 pole structure by cutting grass and excavation upto 30 cm depth, spraying chemical, laying polythene in excavated area and filling complete with provn of 63mm graded stone aggregate upto height 40cm all as specified and directed.

M&L for shifting of transformer of any capacity from MES Yard to any 4 pole/Plinth including making necessary connections, disconnetcing / connecting existing HT/LT connection and depositing the removed transformer to MES Yard complete all as specified and directed.

Supply & Fix 40mm dia gun metal gate valves with iron wheel head screwed at both ends for drain out transformer oil complete including dismantling of old unserviceable gate valve from existing transformer at any location complete all as specified and as directed.

Supply & Fix 15mm dia gun metal gate valves with iron wheel head screwed at both ends for drain out transformer oil complete including dismantling of old unserviceable gate valve from existing transformer at any location complete all as specified and as directed.

S & F 25 mm x 3 mm aluminum strip as earth continuity conductor including from test point to equipement complete all as speicified & directed by Engineer-in-charge.

S & F 32 mm x 6 mm GI strip as earth continuity conductor including from test point to equipement complete all as speicified & directed by Engineer-in-charge.

M&L for replacing control and protection wiring of Package/ compact sub station 400KVA having VCB & RMU and LT/ APFC panel by replacing wiring using FRLS PVC insulated copper wire of size 1.5/2.5Sqmm for functioning of VCB & RMU relay, Buccholz relay, WTI, OTI complete for detecting fault in DC supply and replacing with new upto 30 Mtr, 2 core length incl replacing reqd CT, PT connections complete all as specified and directed. Note: The work shall be carried out by qualified Engineer only.

Supply & fix new MS Cross arms, bracing, supports, clamps, anti climbing device and back plates fabricated from structural steel section including nuts, bolts, washers with reqd mech working/ process i.e. cutting, welding, bending, cold or hot, drilling holes, grinding or bolt in any shape or size including 2 coats of aluminium paint over one coat of red oxide including taking out unserviceable complete all as specified and directed by Engineer-in-charge. Note : Unexposed surface shall be given one coat of primer only.

M&L for alternative arrangement by hiring, transportation of transformer of capacity 500 / 630 KVA in place of unserviceable transformer on hire basis for 10 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specified and directed. Notes:- (i) Contractor must arrange hired transformer including transportation and installation at site immediately after receipt of verbal/telephonic/written complaint from JE/Engr-in-Charge within 1 day. Any delay beyond 1 day post receipt of complaint shall be penalized @ Rs 3500/- per day and shall be recovered from next due RAR. (ii) Repairing of transformer must be completed within 10 days after receipt of verbal/ telephonic/ written complaint from JE/Engr-in-Charge. In case of any delay, no extra claim will be entertained towards hiring charges beyond 10 days and the contractor shall not be allowed to shift the hired transformer until replaced by repaired transformer. In case of any kind of fault / defect occurred in hired transformer, the contractor shall have to arrange further replacement without any additional cost and shall repair the defect from his own expenses. (iii) Contractor should check the available infrastructure and to be sure regarding safety of hired transformer before installation. The rate quoted is deemed to be including transportation cost, earthing lead etc.

M & L for boring hole under the road / pavement / hard standing of any width with the help of trenchless technology using ultra sound technique and necessary machine and including HDPE pipe 150 mm of size not less than one metre below ground level complete all as specified & directed by Engineer-in-charge.

Kaul Enterprises

R D Bansal

AGGARWAL ENGINEERING CO