REPAIR / REPLACEMENT OF TRANSFORMER 100 KVA, 11 KV / 433 V AND REPLACEMENT OF LT PANEL WITH CONNECTED WORKS AT KENDRIYA VIDHYALAYA NO. 3 AT AGRA UNDER GE (EAST) AGRA

Amount

Dismantling and taking out transformer of capacity 100 KVA, 11/.433 KV from its position for repair, servicing & rewinding installed at KV 3 on plinth structure by disconnecting & opening HV, LV Electrical connection, earthing connection along with following other works complete all as specified and directed :- (a) Transportation of transformer from KV-3 Agra to manufacturer's / repair agency workshop and back to site by making necessary arrangement of T&P (Crane, recovery vehicle, tripoid to be arranged by the contractor as directed). (b) Opening of transformer top cover by extraction, removing of serviceable / unserviceable nuts bolts and washers and lifting primary coil (HV) and secondary coil (LV), dismantling of transformer part by part carefully and display all the parts without damaging any portion for inspection. (c) Draining out of transformer oil. (d) Reassembling the transformer complete with all existing serviceable parts and renewal of unserviceable parts with new parts as ordered. (e) Reinstall the transformer at site in position as directed after repair connecting HV, LV elecrical connections, earthing connection.

Item No.1 (contd...) (f) Testing of transformer as per IS-2026 be carried out. (g) Checking / overhauling oil cooled tap changer (OCTC) testing. (h) Minor parts required for testing of transformer, consumable items required during installation of transformer, testing of earthing servicing & testing of bucholz relay, servicing of bushing, CTs, WTI & OTI and to make transformer in operational condition complete in all respect and making transformer ready for testing of 11/.433 KV all routine test to checking all the parameters in workshop completely shall be deemed to be included in quoted rate complete all as specified and directed. (i) Centrifusing of transformer oil till Di-electric strength not less than 40 KV with 2.0 mm gap. (j) Scraping old paint and applying one coats of synthetic enamel smoke grey paint and painting shall be done by spray machine including writing of MES No and date of repair etc at prominent place / location of transformer with black paint of back ground with white lettering. (k) Winding of primary / secondary coil as reqd, renewal of spare parts shall be considered separately under appropriate items mentioned here in after.

Supply and filling/Toping up new transformer oil low viscosity approved make as per IS 355 of 1992 and min di-electric strength 50 KV/cm at 2.5mm gap high viscosity in transformer complete all as specified and directed Make Power Oil/savita or any other approved make by GE. Note : (i) Test certificate from manufacturer of oil shall be provided by the contractor. (ii) Supply shall be given in sealed containers and empty containers shall be Govt Property.

M&L for rewinding of primary coil (11KV) of 11/.433 KV transformer of 100 KVA capacity using proper size DPC copper wire and insulation material, heating coils in heat chamber after rewinding including taking out carefully burnt unserviceable copper winding of coils complete all as specified and directed.

M&L for rewinding of secondary coil (433 V) of 11/.433 KV, transformer 100KVA capacity using proper size DPC copper wire and insulation material, heating coils in heat chamber after rewinding including taking out carefully burnt unserviceable copper winding of coils complete all as specified and directed.

Supply and fix Cable Terminal Boot for Transformer comprising of Basic Impulse Level – 95kV, Bushing Diameter – 30 – 45mm, Voltage Um – 17.5kV max, Description – Flexible Bushing Boots, Diameter D Over Termination – 35mm-400mm, suitable for HT/LT XLPE UG Cable Sizes – 95 – 240 sqmm, Complete all as specified and directed

Supply only LV bushing (Brass) studs rod of suitable size for outdoor/indoor/canopy type distribution transformer (11 /0.433 kV) of any capacity, with washer of brass of suitable dia & length for transformer terminal with BRASS nut and bolts and washers complete with oil seal, gaskets, ring washer etc complete all as specified and directed.

Supply only Packing gasket for top cover and terminal box for HT and LT side as per existing sample for out door/indoor type transformer including nuts, bolts and washer etc for 100 KVA transformer (after draining out transformer oil and refilling to the same transformer oil) complete all as specified and directed. Note :- Cost of minor spares i.e nut bolt and washer if required to complete the job is deemed to be included in quoted rates.

Supply only air breather assembly as per existing size, shape and specification with and including filled silica gel upto 2 kg as per sample complete all as specified and directed.

Supply & fixing in repair/replacement of sheet metal enclosure Vertical TPN DB 4 Way double door As per IEC 61439-3, Suitable for Flush Mounting and Surface Mounting, With 250 A Copper Busbar for each phase with 2 Neutral bar, 2 earthbar and Cable ties for Cable manage-ment, fully insulated busbar & shrouded Neutral bars, Improved Pan assembly for easy of installation, Prefitted masking sheet, Reversible Door for IP 54 DB's, With provision for 160 Amp MCCB as incomer and SP/TP MCB's as outgoing including taking down old unsv MCB DB and MCBs complete complete all as specified and directed. Make : Legrand/Schneider/Seimens

Supply and fixing MCCB 4 pole, 160 Amps, 50 Hz, Icu=16 KA at 415 volts with thermal magnetic alongwith adjustable magnetic protection for current setting Icu=Ics = 100% with adjustable over load setting (minimum 70% to 100%) value from 10 to 15 times of related capacity as per IEC-60947-1 and 60947-2 standard complete all as specified and directed. Make : Legrand/Schneider/Seimens

M&L for earthing complete with galvanized earth plate electrode 600 x 600 x6mm thick burried directly in ground vertically to a depth not less than 2.25 M below normal ground level ) with top edge of the plate not less than 1.50 M below normal ground level , connected to and including galvanised iron strip 25x4mm dia as earth lead soldered and riveted to earth plate by means of nuts, bolts, check nuts & washers, of galvanized iron or steel with connected to test point and testing on completion including 32mm GI light grade pipe for earth strip protection from earth point to earth plate, including provn adequate quantity of charcoal dust mixed with 35 % common salt to a packed thickness of not less than 15 cm in alternate layers of charcoal and salt on all sides of earth plate with 20mm bore medium grade GI Pipe for watering,GI check nut, funnel and wire mesh with and including all necessary excavation & earth work in soft/loose soil, returning filling in, removal of surplus soil to a distance 50 metre,,PCC 1:3:6 type C-1 as in earth pit, 40 mm thick RCC cover using cement concrete 1:2:4 type B-1 reinforced with & including 8 mm dia mild steel TMT bar @ 100 mm c/c Both way with suitable handle for lifting arrangement & including form work complete all as specified and shown in electrical plate No 3 of MES SSR Part I and as directed. NOTES:- (i) On testing, after completion of Job, if desired earth resistance is not obtained, the earthing shall be redone at without any extra cost by contractor.

M&L for earthing complete with copper plate electrode 600 x 600 x3.15mm thick burried directly in ground vertically to a depth not less than 2.25 M below normal ground level ) with top edge of the plate not less than 1.50 M below normal ground level , connected to and including copper iron strip 20x3mm dia as earth lead soldered and riveted to earth plate by means of nuts, bolts, check nuts & washers, of galvanized iron or steel with connected to test point and testing on completion including 32mm GI light grade pipe for earth strip protection from earth point to earth plate, including provn adequate quantity of charcoal dust mixed with 35 % common salt to a packed thickness of not less than 15 cm in alternate layers of charcoal and salt on all sides of earth plate with 20mm bore medium grade GI Pipe for watering,GI check nut, funnel and wire mesh with and including all necessary excavation & earth work in soft/loose soil, returning filling in, removal of surplus soil to a distance 50 metre,,PCC 1:3:6 type C-1 as in earth pit, 40 mm thick RCC cover using cement concrete 1:2:4 type B-1 reinforced with & including 8 mm dia mild steel TMT bar @ 100 mm c/c Both way with suitable handle for lifting arrangement & including form work complete all as specified and shown in electrical plate No 3 of MES SSR Part I and as directed. NOTES:- (i) On testing, after completion of Job, if desired earth resistance is not obtained, the earthing shall be redone at without any extra cost by contractor.

Supply, installation , Testing and Commissiong Outdoor type cubicle panel board inner cell made of 2 mm thick and outer cell made of 3.15mm CRCA sheet for three phases, 4 wire, 415 Volts , 50 Hz with IP-54 protection rupturing capacity at 415 volts , factory made in an approved factory having seven tank treatment process for powder coating with thickness not less than 60 microns with paint shade RAL -7035 provided with suitable gasket to make it dust/vermin proof and mounted on PCC foundation of size as required or approved by manufacturers in PCC 1:3:6 Type C-2 , using 40 mm graded crushed stone aggregate as recommended by manufacturer or directed including earth work complete & general construction comprising of the following :- Make of MCCB/MCB/timer switch : Siemens/ABB/Legrand

Item No.13 (Contd....) Incoming: (a) Bus bar chamber comprising 4 Nos copper strip bus bars PVC insulated made of copper strip with current capacity 600 Amp with stand heat shrinkable sleeking alongwith shrouds for joints , PVC sheathed with colour coding . (b) Incommer MCCB, 4 pole having current ratings 400 Amps, AC 415 Volts, with Icu= 25 KA, Ics = 100% of Icu, with thermal magnetic release, complete with spreader links- Qty - 01 No (c ) Multifunctional digital panel meter with LCD display flush mounting type of size 96X96 mm, accuracy class 1, suitable for CTs with secondary current 5A, Outgoing:- (d) MCCB, 4 pole having current ratings 200 Amps, AC 415 Volts, with Icu= 25 KA , Ics = 100% of Icu-01 No (e) MCCB, 4 pole having current ratings 160 Amps, AC 415 Volts, with Icu= 25 KA , Ics = 100% of Icu, with thermal magnetic release, complete with spreader links- Qty - 02 Nos (f) MCCB, 4 pole having current ratings 125 Amps, AC 415 Volts, with Icu= 16 KA, Ics = 100% of Icu, with thermal magnetic release, complete with spreader links- Qty - 01 No (g) MCB TPN having current ratings 32 Amps, AC 415 Volts, Qty - 02 Nos (h) MCB, DP 16 Amp, C Curve, 240 volts, 10 KA - Qty - 01 No (j) Astronomical Time swith 20 Amps with contractor 3 pole, 415 volts of suitable capacity - 01 No All control wires shall be with 2.5 sqmm multstranded copper conductor and shall be properly bunched, tied ferruled for proper identification and crimped with adequate size of copper lugs.

M&L for cleaning and preparation of of old painted exposed surfaces all existing steel tubular poles 09 mtr long upto finial taper plug including cross arm, clamp, bracket etc and applying one coat of aluminium paint all around the exposed steel surface with and including one coats of paint in 30 cm wide bands/ strips around the poles alternatively with black & white synthetic enamel paint up to height of 1.5 m from top of PCC coping of the pole and including writing pole No. in 8 cm height letter with black enameled paint in a circle of 20 cm dia with base of synthetic enamelled paint (colour approved by GE) on pole at above top most band compete all as specified and directed.

M/S VIDIT ENTERPRISES (BID ID -3171969)