REPAIR AND MAINT OF HT EXTERNAL ELECTRIC SUPPLY, LT SUPPLY 33/11 KV TRANSFORMERS AND HT SWITCH GEARS 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 including 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 including earthing and testing complete 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 complete all as specified and directed .

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. Note :- Defective parts such as CCSI core, winding wire HV/LV, insulation PCB core sheet, HT/LT bush with metal parts will be measured and paid separately and fixing charges for these items deemed to be included in quoted rates.

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.

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

Material only 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 as 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 as approved sample.

Supply only 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 complete all as specified and directed. Make :- Savita/Indian Oil/Power

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 for the following 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 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 repair 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

Supply only 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 suitable for the following capacity of transformer.

50KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Supply only 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 suitable for the following capacity of transformer.

50KVA 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 suitable for the following capacity of transformer.

50KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Supply and fixing Breather assembly with silica complete for 1.6 MVA to 5 MVA transformer all as specified and directed.

S&F gas and oil actuated relay [Buchholtz Relay] for 33/11 KV 1.6 MVA and 5 MVA transformer equipment having contacts which close following oil surge or low oil level conditions complete all as specified and directed. Make :- Press and force/GOR/Premier

Supply only and fixing Tap changer assembly complete all as specified and directed by Engineer in charge suitable for the following capacity of transformer.

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. Note :- T&P required for above will be arranged by contractor at site.

M&L in renewal extension copper strip for transformer LT/HT side of size 100mm x 50mm x 8mm with hole on both end of suitable size complete all as specified and directed.

Supply and fix transformer oil temperature gauge of standard size suitable for 100 to 500 KVA transformers 11 KV/433 volts analogue type including removing the existing u/s one complete all as specified.

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 for folowing size including necessary excavation, earth work, returning filling etc complete all as specified and directed.

Size 50 Sqmm to 95 Sqmm 3.5 Core.

Size 120 Sqmm to 185 Sqmm.

Size 240 Sqmm to 400 Sqmm.

Dismantling the existing worn out jumpers of two pole / four pole structure and replacing with new set of jumpers of ACSR conductor of size 6/1x2.59 from HT line to AB switch, DO fuse near to transformer including PVC RYB sleeves aluminium thimbles etc complete.

S&F Switch Air break gang operated triple pole (3 insulators in each phase mechanically operated mounted on insulator and steel frame with operating mechanism worked from ground level current rating 200 Amps suitable for 11 KV complete with locking arrangement horizontal/vertical complete set of 3 with one No’s operating rod complete all as specified and as directed.

Supply and fixing 33 KV DO fuse unit assembly with porcelain insulator and MS channel mounting bracket 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 Make - CG/kappa/Alsthom/Laxmi/Pragti

M&L for replacement of outdoor control junction boxes of required sizes for 33/11 KV CT/PT/VCB/SF6 breaker control cables with copper connection strips/lugs, nuts & bolts, washers, ms clamps etc complete all as specified and directed .

M & L for pole LT/HT painting surfaces of any description steel, iron etc . After preparation of old surface of poles including pole fittings such as cross arms of any description, anti-climbing devices, nut, bolts etc. including scrapping and rubbing etc and applying two coats of aluminum paint including numbering of poles complete all as specified and directed

S&F Switch Air break gang operated triple pole (3 insulators in each phase mechanically operated mounted on insulator and steel frame with operating mechanism worked from ground level current rating 400 Amps suitable for 33 KV complete with locking arrangement horizontal/vertical complete set of 3 with one No’s operating rod complete all as specified and as directed.

S&F in repair copper control cable for 33 KV transformer protection system 4 core 2.5 Sqmm armoured complete all as specified and directed Make-Polycab/National/Gloster/Finolex

Supply and fixing Lightening Arrestor HT 33 KV 65 KA station class 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 as directed. Make : Make : Oblum/Bhel/Atlas

Spray of agricultural based chemical inside the installation to control the growth of unwanted herb etc including cleaning of the grass herbs bushes etc from the installation complete all as specified and directed .

M&L for 150 mm thick graded gravel 40mm packed in 33 or 11 KV sub station yard all as specified 10 mm deep complete all as specified and directed .

1.6 MVA TRANSFORMER (33/11 KV)

Disconnection of transformer of cap 1.6 MVA out door type 33/11 KV from LV/HV side including earthing GI strips and other DC sources, control wiring , Relays, protection, metering etc and taking down/removing transformer from plinth with the help of crane for complete all as specified and directed

Transportation of Transformer from site E/M yard to workshop and from workshop to site /E/M yard for repairing/ depositing etc of capacity 1.6 MVA 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 servicable or re useable after testing the oil complete all as specified and directed.

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 repairing 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. Refising top cover with new gaskit, nuts and bolts etc and making the transformer leak proof complete all as specified and directed.

Material and labour for ovening of complete assembly including HV/LV coils of transformer 1.6 MVA in oven for at least 72 Hrs for achieving desired insulation value and complete removal of assembly complete all as specified and directed. (Note re-ovening shall be done if the desired result was not found without any extra cost) all as specified and directed.

S/F cork sheet gaskit cut to shape for the top covers radiator valves conservator assembly bucolz and other required places of the transformer of capacity 1.6 MVA 33/11KV complete all as specified and directed.

Installation, commissioning, testing of 1.6 MVA transformer by connecting all HT 33/11 KV connections, earthing connections, control cables for various protections, indications, metering, connection and buczols connections and testing complete all as specified and directed.

S&F in repairs OTI & WTI for 1.6 MVA 33/11 KV transformer complete all as specified and directed.

S&F in replacement HT bushing 33KV side for 33/11 KV 1.6 MVA transformer complete with copper spindal and connected items complete all as specified and directed

S&F in replacement HT bushing 11KV side for 33/11 KV 1.6 MVA transformer complete with copper spindal and connected items complete all as specified and directed

GM Construction Co.

M/S SANTOSH CONSTRUCTION CO

M/S Kumar Contractors

DURGAI ELECTRICALS

M/s SCHOLASTIC ENTERPRISES