REPAIR/MAINT OF TRANSFORMER, VCB PANEL INCLUDING OF HT CABLES AND CERTAIN ALLED MISC WORKSW AT M HOUSE ARE AND JCB UNDER GE I RnD DELHI

Amount

Taking proper shutdown & Isolate the HT electric supply and trolley of VCB HT 11KV 400 to 630 amps of any make and type and servicing of all minor/major parts of the VCB by cleaning, isolating contact, moving parts, removing dust particle from the bus bar chamber, spout, gear mechanism, repair to motor charge spring mechanism, tightening of all nut & bolts of entire trolley component all as directed , inserting the trolley, testing the complete HT electric supply and putting on supply on load complete all as specified and directed. Note :- (i) All cleaning/testing equipment/material shall be provided by the contractor and rate of deemed to be included in qouted rates. (ii) The complete test report shall be provided by the contractor to GE (I) R&D Delhi.

Calibration of IDMT/ BUCHHOLZ relay of 11KV HT VCBs /TRF and 1.1KV ACBs installed at Main Receiving sub stn, DESIDOC, ISSA, CEPTEM and DCDA sub stn complete all as specified and directed. Note :- (i) All testing & calibration equipment with all accessories shall be brought by the contractor and rate of deemed to be included in qouted rates. (ii) The complete test report shall be submitted by the contractor to GE (I) R&D Delhi.

S&F, installation, testing and Calibration of IDMT relay of 11KV HT VCBs installed at Main Receiving sub stn, DESIDOC, ISSA, CEPTEM and DCDA sub stn complete all as specified and directed.

Taking proper shutdown & Isolate the HT electric supply & dismantled all cable and repair of Transformer of size 500 KVA of any make indoor type and servicing of all minor/major parts of the Transformer by cleaning the contact parts, connection, removing dust particle from fins, find out leakage of oil and repair it. checking & cleaning of explosion went, repairing of Buchholz Relay of any rating. Rewinding of burnt LT/HT winding and bushing, tightening of all nut & bolts of entire system all as directed, painting of complete body, testing the complete HT/LT electric supply complete all as specified and directed.

Taking proper shutdown & Isolate the HT electric supply & dismantled all cable and repair of Transformer of size 630KVA of any make indoor type and servicing of all minor/major parts of the Transformer by cleaning the contact parts, connection, removing dust particle from fins, find out leakage of oil and repair it. checking & cleaning of explosion went, repairing of Buchholz Relay of any rating. Rewinding of burnt LT/HT winding and bushing, tightening of all nut & bolts of entire system all as directed, painting of complete body, testing the complete HT/LT electric supply complete all as specified and directed.

Supply and Fix in replacement of fuse base suitable for cylindrical /DIN type HRC fuse of capacity 2-32 amps complete all as specified and directed.

Supply and Fix in replacement of closing spring assembly complete all as specified and directed.

Supply and Fix in replacement of tripping spring assembly complete all as specified and directed.

Supply and Fix in replacement of charging motor cut off limit switch complete all as specified and directed.

Supply and Fix in replacement of spring charging handle motorized mechanism complete all as specified and directed.

Supply and Fix in replacement of push button bracket assembly complete all as specified and directed.

Supply and Fix in replacement of bus bar support insulator 75 mm dia including all fixing accessories complete suitable for VCB/HT Bus bar chamber with colour coding complete all as specified and directed.

Supply and Fix in replacement of bus bar barrier (set of three) with nuts & bolts complete all as specified and directed.

Supply and Fix in replacement of toggle switch for space heater with all accessories complete all as specified and directed.

Supply and Fix in replacement of Charged/Discharged indication assembly complete all as specified and directed.

Supply and fix Replacement of one pole assembly 11 KV VCB of any make/type complete all as specified and directed.

Supply and fix in replacement of 3 Pole MCCB, 100 Amp, 50 Hz, 415 V with rupturing capacity 16 KA complete all as specified and directed.

Supply and fix in replacement of 3 Pole MCCB, 250 Amp, 50 Hz, 415 V with rupturing capacity 25 KA complete all as specified and directed.

Supply and fix in replacement of 3 Pole MCCB, 400 Amp, 50 Hz, 415 V with rupturing capacity 36 KA complete all as specified and directed.

Supply and fix in replacement of 3 Pole MCCB, 630 Amp, 50 Hz, 415 V with rupturing capacity 50 KA complete all as specified and directed.

Supply and fix in replacement of 4 Pole MCCB, 160 Amp, 50 Hz, 415 V with rupturing capacity 25 KA complete all as specified and directed.

Supply and fix in replacement of 4 Pole MCCB, 250 Amp, 50 Hz, 415 V with rupturing capacity 25 KA complete all as specified and directed.

Supply and fix in replacement of 4 Pole MCCB, 400 Amp, 50 Hz, 415 V with rupturing capacity 36 KA complete all as specified and directed.

Supply and fix in replacement of 4 Pole MCCB, 630 Amp, 50 Hz, 415 V with rupturing capacity 50 KA complete all as specified and directed.

Disconnecting and taking down unserviceable current transformer of any description and in any position and supply, installation, commissioning and testing of cast resin type 11 KV current transformer having ratio of 200+100\5+5 A having protection core class 5P 10, burden of 15 VA and metering core class 1.0 and burden of 15 VA breaking cap of 13.1 KV for 1.0 second complete all as specified and directed.

M&L in replacement of control wiring with multistranded copper conductor of size 2.5 sqmm, 3 Core FRLSH matching with existing size/type including proper laying with the help of locking device complete all as specified and directed.

Taking down repairable potential transformer of HT VCB 11 KV/ 110 V of any make, opening & dismantling the complete unit and refitting after carry out the following repairs/replacement :- (a) Rewinding of transformer as per existing gauge and pattern. (b) Cleaning and servicing of the PT. (c) Replacement of wornout nuts/bolts and other minor parts including HRC Fuse. (d) Soldering/Tightening of loose connections. (e) Replacement of potential transformer oil having dielectric strength upto 60KV. (f) Painting of outer portion of PT with synthetic enameled paint of grey colour of approved make. (g) Testing of the PT's for proper functioning to the entire satisfaction of the Engineer-in Charge.

Disconnecting and taking down unserviceable Potential transformer of any description and supply, installation, commissioning and testing of potential transformer for HT VCB 11 KV/110 VAC 3 Phase of Mild Steel Body, Oil cooled, Class 10 of Crompton Greaves/ Alsthom/ L&T. make complete all as specified and directed.

Supply and Fix in replacement of 11 pin, anti pumping relay 110V DC complete all as specified and directed.

Supply and Fix in replacement of bottom terminal with jaw contact complete all as specified and directed.

Supply and Fix in replacement of Top terminal with jaw contact complete all as specified and directed.

Supply and Fix in replacement of space heater 230V, AC 80W with all accessories complete all as specified and directed.

Supply and Fix in replacement of thermostate with all accessories complete all as specified and directed.

S&F in replacement of PT epoxy female bushing suitable for R-Y-B phase complete all as specified and directed.

S&F in replacement of PT epoxy male bushing suitable for R-Y-B phase complete all as specified and directed.

S&F in replacement of PT fuse 11 KV complete all as specified and directed.

M&L for replacement of interlocking control wiring of capacitors bank ( contactor type & Thyristor type) with suitable size not less than 2.5 sqmm multistranded FRLSH of copper wires complete including making connection and testing the system complete all as specified and directed.

Dehydration and filtration of transformer oil with proper dehydration machine to achieve dielectric strength between 45 to 60 KV including testing/recording of dielectric strength result before and after of dehydration complete all as specified and as directed.

Supply and topping up transformer oil having dielectric strength not less than 45 KV complete all as specified and directed.

Taking shut down from main sub station and drain out the transformer oil and to be collected in barrel by opening the transformer cover of capacity 300 to 500 KVA by unscrewing the nuts/bolts and washers and kept in safe custody and reuse the same, and checking any type of leakage from both HT and LT side including cleaning the sludge etc depositing in the core and tank by using soft brushes and clean with old transformer oil, refilling of transformer oil including refixing of top cover including nut/bolts etc and testing the input & output voltage and adjustment of the voltage through tape changer if required for entire satisfaction complete all as specified and directed.

Taking shut down from main sub station and drain out the transformer oil and to be collected in barrel by opening the transformer cover of capacity 630 to 1500 KVA by unscrewing the nuts/bolts and washers and kept in safe custody and reuse the same, and checking the any type of leakage from both HT and LT side including cleaning the sludge etc depositing in the core and tank by using soft brushes and clean with old transformer oil, refilling of transformer oil including refixing of top cover including nut/bolts etc and testing the input & output voltage and adjustment of the voltage through tape changer if required for entire satisfaction complete all as specified and directed.

Taking shut down from main sub station and drain out the ransformer oil and to be collected in barrel by opening the Automatic Servo Voltage stabilizer of capacity 300 KVA by unscrewing the nuts/bolts and washers and kept in safe custody and reuse the same, and checking the any type of leakage from both HT and LT side including cleaning the sludge etc depositing in the core and tank by using soft brushes and clean with old transformer oil, refilling of transformer oil including refixing of top cover including nut/bolts etc and testing the input & output voltage and adjustment of the voltage through tape changer if required for entire satisfaction of complete all as specified and directed.

Taking shut down from main sub station and M&L for painting to Transformer 300 KVA to 1500 KVA and automatic servo voltage stabilizer 100 KVA to 300 KVA with spray gun with two coats of synthetic enamel heat resistant grey paint over a coat of red oxide primer as required including preparation of old painted surfaces/removing old faded/rust/ cemented material of surface of transformer including base frame, connected LT panels, duct covers etc including writing MES/SM No of existing size complete all as specified and directed.

S&F in repairs HT bushing 11KV suitable for 300 to 1000 /1500KVA Transformer including brass rod and complete with gasket as per matching to existing complete all as specified and directed.

S&F in repairs LT bushing 1.1KV suitable for 300 KVA to 1000 /1500 KVA transformer including brass rod and complete with gasket as per matching to existing complete all as specified and directed.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for indoor end termination 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.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for indoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185sqmm complete all as specified and directed.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for indoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 300 sqmm complete all as specified and directed.

S&F in repairs Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink 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.

S&F in repairs Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm. complete all as specified and directed.

S&F in repairs head gasket sheet 6mm thick suitable for Transformer 300KVA to 1500 KVA capacity as per matching to existing complete all as specified and directed.

S&F in repairs head gasket sheet 6mm thick suitable for Automatic Servo Voltage stabilzer 100KVA to 300 KVA capacity as per matching to existing complete all as specified and directed.

Supply and Fix in replacement of Dehydrating breather assembly complete with silica gel grains in the breather assembly suitable for transformers 300 KVA to 1000/1500 KVA complete as per matching to existing complete all as specified and directed.

Supply & fixing in replacement of temperature gauge, analog type with all accessories as per matching to existing complete all as specified and directed.

Supply, laying in replacement and testing HT XLPE cable Insulated screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts grade with stranded aluminium conductor of size 95 sqmm, 3 core complete all as specified and directed.

Supply & laying in replacement and testing HT XLPE cable Insulated screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts grade with stranded aluminium conductor of size 120 sqmm, 3 core complete all as specified and directed.

Supply & laying in replacement and testing HT XLPE cable Insulated screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts grade with stranded aluminium conductor of size 185 sqmm, 3 core complete all as specified and directed.

Supply & laying in replacement and testing HT XLPE cable Insulated screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts grade with stranded aluminium conductor of size 300 sqmm, 3 core complete all as specified and directed.

Excavation in trenches in soft/loose soil not exceeding 1.5m depth and not exceeding 1.5m in width for laying of HT cables complete all as specified and directed.

Excavation in tranches in hard/dense soil not exceeding 1.5m depth and not exceeding 1.5m in width over energised LT cables for carrying out brick work for preparation of cable duct including for taking out and relaying of LT Cables etc complete all as specified and directed.

Returning filling in including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick as in soft/loose soil complete all as specified and directed.

Removing surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level and not exceeding 1.5 mtr above the starting point complete all as specified and directed.

M&L for clean dry fine sand for cushioning of underground cable, laid in trenches/duct complete all as specified and directed.

M&L for un-reinforced precast concrete cable cover, class HV type I, flat, size 300mm x 180 mm x 40mm over the HT cable for protection of cable.complete all as specified and directed.

M&L for boring of holes under road, pavement, hard standing by trenchless techonology using ultra sound technique and necessary machine including supply and laying of HDPE pipe 160 mm dia type PN 4 working pressure complete all as specified and directed.

M&L for GI pipe medium grade in replecement of 100mm dia laid in trenches for protection of UG cable including taking out old unserviceable complete all as specified and directed.

M&L for GI pipe medium grade in replecement of 150mm dia laid in trenches for protection of UG cable including taking out old unserviceable complete all as specified and directed.

M&L for PCC 1:3:6 type C1 (using 20 mm graded stone aggregates) for repairing of foundation of transformers VCBs and earthing pit etc including filling in road cuts/ hard standing etc complete all as specified and directed.

S&F in repair synthetic insulating mat of size 2.0 m x 1.0 m x 25 cm complete all as specified and directed.

M&l danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT of size 25x20cm complete all as specified and as directed.

M&L for chemical earthing complete with earth electrode made of high tensile low steel circular rods, molecularly bonded with copper on outer surface to meet the relavent indian standards and shall be of the approved make & design. The earth electrode shall confirm to IS and of minimum 17 mm dia and minimum 2 mtr long & thickness of copper bonding minimum 250 microns, hole of 100 mm to 120 mm dia shall be augured to a depth of about 2.5 mtr. earth electrode shall be placed into the hole, by penetrating it into the soil gently diving on the top of the rod, so that minimum 150 mm of the electrode shall be inserted in the natural soil/ present soil, earth enchancement material (minimum approx 20 Kg) shall be filled into the augured hole in slurry from and allowed to set, after the material get set, the diameter of composite structure (earth electrode + earth enchancement material) shall be of minimum 100 mm dia covering entire length of the hole, remaining portion of the hole shall be covered by backfill soil/ material. A copper strip of 150mmx25mmx6mm shall be exothermically welded to main earth electrode for taking the connection to the main equi-potential earth bus bar /ICT centre, multistranded single core PVC insulated 10 Sqmm copper cable connecting to main earth electrode, earth enhancement material consist of Graphite and portland cement. Bentonite content shall be negligible, high conductivity & humidity retention capability, non corrosive in nature having low water soiubility but highly hygroscopic. Inspection chamber of size 300x300x300 mm (inside dimension), box (Concerete/Iron) with smooth finish shall be provided on the top of the pit. A concrete /Iron lid painted black with pulling hooks, shall be povided to cover the earth pit, copper lugs with stainless steel nut and bolts complete all as specified and directed.

M&L for Earth continuity conductor passing through PVC Conduit of size 25 mm as main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or any other indicated situation for loop earthing etc as required and size of copper strip shall be 20x3mm complete all as specified and directed.

M&L for Earth continuity conductor passing through PVC Conduit of size 40 mm main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or any other indicated situation for loop earthing etc as required and size of galvanised iron strip shall be 32x6mm complete all as specified and directed.

M&L for 6mm thick MS chequered plate of suitable size for cable duct cover and earth pit cover complete all as specified and directed.

S&F three phase over current earth fault relay MC-61A as per matching to existing one including all accessories and wiring complete including taking down old unserviceable relay complete all as specified and directed.

S&F three phase digital KV meter range up to 15 KV as per matching to existing one including all accessories and wiring complete including taking down old unserviceable relay complete all as specified and directed.

S&F in repairs digital ammeter for current range of (0-1000Amps) as per matching to existing including all accessories and wiring complete all as specified and directed.

S&F in replacement Power Bank DC voltage for suitable for the VCBs including testing complete all as specified and directed.

S&F Ring type Copper thimble of size 95 sqmm for terminal end of HT cable suitable for 11KV high Voltage carrying high quality material complete all as specified and directed.

S&F Ring type Copper thimble of size 120 sqmm for terminal end of HT cable suitable for 11KV high Voltage carrying high quality material complete all as specified and directed.

S&F Ring type Copper thimble of size 185 sqmm for terminal end of HT cable suitable for 11KV high Voltage carrying high quality material complete all as specified and directed.

S&F Ring type Copper thimble of size 300 sqmm for terminal end of HT cable suitable for 11KV high Voltage carrying high quality material complete all as specified and directed.

S&F Ring type Copper thimble of size 400 sqmm for terminal end of HT cable suitable for 11KV high Voltage carrying high quality material complete all as specified and directed.

Supply only Electrical insulation HT tape of 3/4"width and 30 feet length Etylene Propylene backing highly comfortable to wrap snugly over most any shape streches up 100 percent to provide avoid moisture, resistant insulation tape complete all as specified and directed.

S&F Monoplast compound Putty use for jointing material of LT/HT cable complete all as specified and directed.

M&L in repair for GI Strip 25x4mm size for Lightning Arrester and fixed with the help of poroceline insulator and screw for roof conductor complete all as specified and directed.

S&F in repair Air Termination single pointed Aluminium Rod 12mm dia, 300mm long complete with fixing rivets, nut, bolts and washer complete all as specified and directed.

S&F in replacement of Aviation Obstraction Light LED lamp 50Hz, 240Watt Die-cast aluminum housing with Red polycarbonate enclosure dome for better illumination and Supper flux 5mm, 302nos LEDs incorporated including all fitting accessories complete all as specified and directed. Make : Bajaj Cat Part No-BGAV302LED or equivalent to Havells/ Phillips

Supply only 500ml cane CRC 2-23 Electrical equipment (contact) cleaner spray used for prevent electronic malfunction equipment caused by water penetration, humidity, corrosion etc complete all as specified and directed.

S&F earth pit chamber alongwith cover of Polymer, FRP Pit Cover of heavy high grade polypropelene for high stress and starin level of size 225x300x 195 mm complete all as specified and directed.

S&F ACP retro sign board of size 1.5x1.1 Mtr using retro reflective high intensity prismatic reflective sheeting. The back ground of board is Blue Colour with white border and writing letter, numbers white colour mentioning the HT/LT substation Details, and Single line Schematic diagram of substation. Retro sign board shall be pasted on 3mm thick ACP sheet. The board shall be fixed on wall including fixing of fastners, nuts, bolts, washer including taking old unserviceable board etc complete all as specified and directed.

M/S GUPTA ENTERPRISES

BLUE HILL ELECTRICAL AND ELECTRONICS