REPAIR AND MAINT OF 11/433V TRANSFORMER AND CONNECTED WORKS AT MORAR CANTT UNDER GE GWALIOR

Amount

Material and labour for transportation of transformer from site/E & M yard to workshop for repair of capacity 50 to 500 KVA complete incl Disconnection of transformer any make indoor/outdoor type from LV/HV side including disconnection of earthing GI strips and taking down transformer from plinth/04 pole structure/02 pole structure with the help of chain pulley/crane incl megger test, ratio test, magnetic balance test. Short circuit test and reinstallation the transformer after repair to its original position and making all LV/HV connections incl earthing and testing complelte all as specified and directed. Note:- Shifting of transformer from site/yard to wkshop and return back from workshop to site/yard shall be measured as single unit. Necessary tools and equipments with labour for shifting of the transformer and transportation to workshop and back deemed to be included in the quoted rate.

Material and labour for draining out transformer oil from the transformer of any make indoor/out door and store in a clean barrel for re-use and disconnection of internal electrical connection by taking out the top cover complete, cleaning of tank, removal of sludge etc by lifting the core with complete LV/HV coil of transformer and segregating to serviceable and unserviceable coils shall be kept aside for reuse after complete varnishing and testing of each coil including removal of complete core and accessories such as HV/LV bushings with metal parts, oil temp indicator, winding temp indicator and disconnection of tap changer. Assembling of yoke fitting, assembling of LV/HV coil in completely intact position over the CCSI laminated core the HT coils shall be fixed over the LV coils by providing the insulation barriers and making the assembly complete in intact position (insulation material shall be measured and paid separately) including assembling of core mounted on channel connecting all the internal connections, soldering brazing of HV/LV connections by silver electrodes including replacement of leads complete by providing tubular insulation of tap changer assembly and its connections and lowering of complete assembly in tank with suitable locking arrangements re fixing the top cover of transformer including the other accessories and making the transformer leak proof complete all as specified and directed for the following capacity.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Material and labour for winding of HV/LV coils of transformer DPC copper winding wire grade of existing gauge and size complete all as specified and directed.

M&L for winding of HV/LV Coil of transformer DPC aluminium winding wire grade of existing gauge and size complete all as specified and directed.

M&L for insulation material PCB electrical grade such as barriers, coil to coil insulation block and rings insulation cylinders, ebonies sleeves etc all as specified and directed for 50 KVA to 500 KVA transformer complete all as specified and directed.

M&L for ovening of complete core assembly including HV/LV coils in oven for minimm 72 hrs for achieving desired insulation value complete all as specified and directed. Note:- Re opening shall be done without any extra cost if the desired result are not found after fixing the coils back to its original position in the tank.

S&F in renewal of heavy duty oil level indicator clean prismatic type with necessary gasket etc suitable for transformer up to 500 KVA capacity complete all as specified and directed.

S&F cork sheet gasket kit cut to shape for the top covers and other required places of the transformer of following capacity of transformer complete all as specified and directed.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

M&L for pouring fresh/topping up transformer oil for 33/11 KV and 11/0.433 KV transformer confirming to IS-335 in the transformer of any capacity complete duly filtered having dielectric breaking strength not less than 60 KV all as specified and directed.

M&L for cleaning of surface of transformer of capacity by scrapping out old paint and painting of transformer by two coats of synthetic enamel gray paint externally over a coat of red oxide including writing of SM/MES No on the transformer complete all as specified and directed for the following capacity.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

M&L for opening up top cover of transformer installed in position, disconnecting connections and reconnecting after renewal of worn out/defective parts such as check nuts,washers, LT bushes, HT bushes, Tap changers etc, refixing the top cover in position after completion of the reqpir work complete all as specified and directed for the following capacity of transformer. Note : Defective parts shall be measured and paid seperately.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

S&F of LT bush with low Voltage brass studs with checks nuts , washers etc of 11 KV grade and LT bushing parts such as porcelain, clamp nuts and bolts etc complete all as specified and directed for the following capacity of transformer.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

S & F of HT bush with High Voltage brass studs with checks nuts , washers etc of 11 KV grade and HT bushing parts such as porcelain, clamp nuts and bolts etc complete all as specified and directed for the following capacity of transformer.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Supply and fixing Breather assembly with silica gel and mounting packing with bolt & nuts complete all as specified and directed for the following capacity of transformer.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Supply and fixing Tap changer assembly complete all as specified and directed for the following capacity of transformer.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Taking out complete core assembly with HV and LV coils tap changer assembly and connected items after opening of top cover of transformer. Complete inspection of core assembly carefully, cleaning of complete core assembly with pressure pump with transformer oil, necessary repearing as required, making necessary insulation etc and refixing the core assembly in tank locking with locking nut and bolts. Making all internal connections with required silver rods, copper strips etc. Refixing top cover etc and making the transformer leak proof all as specified and directed.

50 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

M&L for dehydration and filtration of transformer oil for 33/11 KV and 11/0.433 KV transformer to achieve dielectric breaking strength (BDV) not less than 45KV/22 KV any capacity to transformer by suitable filtration machine complete all as specified and directed.

M&L for preparation of LT side burnt cable end after cutting of burnt portion and supply &fixing new copper cable lugs (set of 3 Nos) insulation etc including taking out cable loop including necessary excavation. Earth work, returning filling etc compete all as specified and dirscted for the following size of cables.

Size 50 Sqmmto 95 Sqmm 3.5 Core

Size 120 Sqmmto 185 Sqmm 3.5 Core

Size 240 Sqmmto 400 Sqmm 3.5 Core

M&L in renewal extension copper strip for transformer LT/HT side 75mmx50mmx4mm with hole on both end of suitable size including taking downthe existing unserviceable item, complete all as specified and directed.

M & L for switch air break gang operated triple pole out door type with drop out switch fuse unit on HT 11 KV 50 cycle AC suitable for current rating upto 200 Amps mechanically operated mounted on insulators (12 Nos epoxy insulators) and frame with operating mechanism worked from ground level with earth switch and including locking arrangement complete all as specified and directed.

M & L for lightening arresters expulsion type 11 KV grade complete with all fittings, transmission class, discharge capacity 65 Kilo Amps complete all as specified and directed.

Carrying out tests such as megger test, ratio test, magnetic balance test. Short circuit test including opening the lid after draining out oil in clean barrels for reuse if servisable or re useable after testing the oil complete all as specified and directed.

S&F cable joining kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and directed.

M & L for Steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts and screws as specified type 410 SP-55 (11 metres long) including painting of pole 1.2 RM height from top of coping of the pole and writing the pole no complete all as specified and directed.

M&L for PCC 1:4:8 type D-2 using 40 mm graded stone aggregate as in foundation filling and mass concrete complete all as specified and directed.

M&L for PCC 1:3:6 type C-2 using 40 mm graded stone aggregate as in foundation filling and mass concrete complete all as specified and directed.

M&L for PCC 1:2:4 type B-0 using 12.5 mm graded BT stone aggregate as in bed block for hold fast or coping including necessary form work complete all as specified and directed.

Repearing/ Servicing/ Overhauling of 11 KV AB switch oiling greasing replacement of defective parts and making smooth functining from ground level complete all as specified and directed. Note:- spares required will be measured and paid seperately under respective items.

Supply only main moving contact 400 Amp for 11 AB switch all as specified and directed.

Supply only main fixed contact 400 Amp for 11 AB switch all as specified and directed.

Supply only flexible copper jumper 400 Amp for 11 AB switch all as specified and directed.

Supply only post insulator 400 Amp for 11 AB switch all as specified and directed.

Supply only moving mechanism 400 Amp for 11 AB switch all as specified and directed.

Supply only operating pipe with handle 400 Amp for 11 AB switch all as specified and directed.

Supply only upper and lower contact for 11 KV DO set all as specified and directed.

S&F in replacement copper strip of size 50mm (width) x 6mm (thickness) bend to shape and size as required making holes etc duly insulated with sleeves complete all as specified and directed.

Supplying, laying, jointing & testing in replacement of 120 sqmm 3 core XLPE insulated & PVC sheathed armoured earthed HT cable, 11000 volts grade heavy duty with aluminium conductor laid in trenches/pipe/fixed on the wall etc .complete all as specified and directed.

Supplying, laying, jointing & testing in replacement of 95 sqmm 3 core XLPE insulated & PVC sheathed armoured earthed HT cable, 11000 volts grade heavy duty with aluminium conductor laid in trenches/pipe/fixed on the wall etc .complete all as specified and directed.

M&L for stay assembly 16 mm dia rod complete with accessories as shown in electrical plate No 1 (Loop type insulator, stay clamps, excavation and concrete measured separately) complete all as specified and directed.

Excavation in trenches not exceeding 1.5m wide and not exc. 1.5m depth and getting out in hard/dense soil complete all as specified and directed.

Excavation in trenches n exc. 1.5 m wide and exc 1.5m deep and n.exc 3.0 m deep for foundation beyond the first 1.5 m ,etc. or for shafts, wells cesspits, manholes, pier holes, etc. n exc.10 sq m on plan and getting out in soft/loose soil complete all as specified and directed.

Removal of excavated soil to a distance not exc 50 m and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and directed.

Supply and fixing CT (Current Transformer) for 11 KV Out door, oil immersed type, 11 KV, core 1&2 -10VA CLASS 10P10 STC- 13.1 KA FOR 1 SEC Ratio 200-100/5+5 complete all as specified and directed.

Supply and fixing PT (Voltage Transformer) for 33 KV out door VCB,oil immersed, 33 KV, 33000/110 V, VA-5 CLASS 1 RATED FRIQUENCY 50 HZ complete all as specified and directed.

M/s Tirupati construction

Manish Electricals

anand enterprises