PROVN OF REVERTING TO BACKFEED CONFIGURATION IN POWER RING MAFI PROJECT AT AF STN AGRA

Amount

Supply laying and testing cable XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 400 Sqmm 3.5 Core complete all as specified and directed.

Supply laying and testing cable XLPE insulated, screened, PVC bedded galvanised 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, installing, testing and commissioning indoor type , Energy efficient Transformer, step up transformer, (For Generator Duty Application) 0.415/11 KV, AC,3 phase, 50 Hz Cycle, 250 KVA, core type copper wound, oil immersed, naturally cooled, Oil natural, air natural (ONAN), with external cooling tubes, complete with first filling of IS:335 ISI marked filtered and dehydrated transformer oil and other standard fittings/accessories and 5 position off circuit tap changer (tapping range +-5% in Steps of 2.5% Each) with Vector Group Dyn-11. The maximum temperature rise should not exceed 45 degree Celsius in oil and55 degree Celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp shall be strictly as per IS 1180/2014 regulations. The transformer shall be IS : 1180 marked. The factory testing before dispatch of transformer will be carried out by the rep as nominated by the Accepting Officer comprise of the following:- (a) One set of HT bushing on HT side consisting of 3 Nos porcelain bushing with brass rods complete with nut and washers of sutaible sizes with HV cable box. (b) One cable box on LT & HT side consisting of 4 & 3 Nos porcelain bushing with brass rods complete with nut and washers. With two Nos cable glands suitable for reception XLPE insulated heavy duty armoured HT/LT cables including gland, joint and jointing material complete. (c ) Oil conservator with filter type drain valve and oil level guage. (d) Dehydrating breather with first fill dehydrating agent (silica gel). (e) Explosive vent (f) Thermometer pocket on tank cover (g) One No 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree Celsius with metal guard having maximum perimeter reading temparature indicator with resisting device for transformer. (h) Two earthing terminals in LT side box to facilitate fixing of 32x6mm galvanized iron earth strip for earthing of neutral & body.

(j) Rating plate and terminal marking plate. (k) Oil level guage . (l) Oil drain filler valve (m) Provide PCC duct from existing duct to Transformer and it should be as per existingsize and depth. (n) Civil work as required should be incuded in quoted rate.

Supply, installation, commissioning and testing the SF6 Circuit breaker 11 KV, 3 phase 50 cycle ( 50 HZ) totally enclosed metal clad switch gear panel factory made, powder coated board with indoor SF6 circuit breaker floor mounted with common copper tinned bus bar complete all as specified and directed. (a) One No 630 Amps capacity triple pole metal clad HT control panel totally enclosed extendable pattern air insulated metal clad housing, floor mounting vertically isolated, vermin proof, fully interlocked horizontal draw out type having double isolation features & control device with grounded neutral system and equipped with the following equipment. (i) One set of 3 phase 630 Amps air insulated, tinned copper bus bar with insulated colour coating. (ii) One set of side frame for housing for circuit breaker carriage. (iii) 6 Nos 630 amps isolators plugs. (iv) One set of mechanical interlock and automatic shutter system, (v) One 630 Amp triple pole 350 MVA rupturing capacity SF6 unit with automatic drop out and manually charged and motor operated spring closed mechanism complete with auxiliary switches, truck mounted draw out, SF6 circuit breaker, incorporating mechanical as well as electrical ON/OFF indication, mechanical indication "ON" push button for emergency trip & 30 Volts DC trip coil. (vi) One cable box suitable for reception upto 240 sqmm HT XLPE 3 core under ground cable 11000 volts pressure. (vii) 03 Nos double wound current transformer dual ratio 100/50/ 5-5 amps for protection and metering having adequate VA burden and accuracy. (viii) One set of 4 Nos LED lamp for indicate ON/OFF/Trip/charging. (ix) One 3 phase horizontal draw out type voltage transformer 100 VA burden and accuracy mounted on the draw able housing for 11000 volts/ 110 volts with protection fuse.

Supply and fixing cable jointing kit for 11 KV grade cable for indoor termination, cold shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, Al conductor cable of size120 sqmm complete all as specified and directed.

Supply and fixing cable jointing kit for 1.1 KV grade cable for Indoor termination, heat shrink type, joint complete with jointing material and accessories suitable for 3.5 core XLPE, armoured, Al conductor cable of size 400 sqmm complete all as specified and directed.

M&L for earthing complete with copper earth plate electrode 600x600x3 mm thick buried directly in ground(earth pit not less than 2.25 mtr deep below the normal ground level) with top edge of plate not less than 1.5 mtr below the normal ground level connected to copper earth strip 20 x 3 mm thick by means of nuts, bolts, washers and check nuts of brass, 40 mm bore GI pipe light grade proection pipe up to test point, 20mm dia light grade GI pipe for watering, meshed funnel, alternate layer of charcoal and common salt complete all as per SSR with PCC pit 50mm thick, RCC cover 540 x 540 x 50 mm thick in 1:2:4 type B-1 using 20mm graded stone aggregate reinforced with 8mm dia TMT bar @ 75 mm c/c both way in lieu of CI cover, and protection including necessary excavation and earth work complete all as specified and directed.

S&F Copper strip 20X3mm thick as earthing lead fixed to wall/roofs etc complete all as specified and directed. Note : All Joints should be joined by Exothermic Welding or brazing

Supply and fixing ACB of rating 800 Amps, 65kA 440 Volts 3 Phase, 50 Hz, Microprocessor Based (Four Pole) (EDO) Inbuilt O/L (Phase & Neutral), S/C with time delay & Inst S/C , E/F protections with Power metering, LED / LCD display & last 5 fault / Event history, Current unbalance, Percentage Loading, inbuilt Communication, Under & Over Voltage protection, Under & Over Frequency, Reverse Power (for DG sets only) with 4 Nos NO & NC auxillary contacts (Ics=Icu=Icw=65 KA for 1 sec) Shunt Trip release / Under Voltage release. Protections by External Relays for Restricted Earth Fault, Trip circuit Supervision etc with necessary CTs. Enclosed in CRCA sheet weather, dust and vermin proof double door front and back opening detachable type comple made up of suitable angle iron frame with locking arrangement duly mounted on angle iron frame of suitable size and grouted on PCC plinth with painted two coats of powder coating over a coat of red oxide primer conforming to IS-8623 IP 54 protection including necessary glands and end joints etc. The ACB shall be type tested & certified for compliance to IEC/IS 60947- 2 complete all as specified and directed.

Supply, fixing and laying double wall corrugated HDPE round pipe in 6 Mtrs Size in 120mm OD/103 mm ID including socket as per IS 16205 Part 24 complete all as specified and directed.

virendera singh (BID ID -3229050)

M/s S.M. Construction (BID ID -3228096)