PROVISION OF TRANSFORMER AND DG SETS FOR STP AT COD CHHEOKI UNDER GE (WEST) PRAYAGRAJ.

Amount

Supply, install, testing and commissioning and testing of outdoor type,Transformer 100 KVA capacity step down with dual ratio on HT side 11/0.433 KV at no load 3 phase , 4 wire AC, 50 Hz, AC double wound core type copper wound ,oil immersed ,air natural cooled with external cooling tubes ,transformer delta coonection on HV Side and star coonection on LV side in accordence with vector symbol Dyn-II with neutral brought out on secondary side and having tapping in step of 2.5% ,5% ,and 7.5% to be changed by means of hand operated off load tap changing gear arrangement including first fill of transformer oil as per IS -335 and including all fitting /accesories as specified in SSR Part -I and IS -1180 Part I/2014 (revised) BEE Star rated energy saving.( Energy efficiency level -3) Transformer should have cable box on LT side and brass bushing on HT side ,oil temprature guage ,dehydrating breather with first fill of dehydrating silica gel ,oil conservator tank ,explosion vent ,rating and terminal marking plate, oil level guage ,oil drain and filter valve ,independent earth point and neutral fittings ,earth terminal at bodybase ,voltage regulation should be as per IS and limit of temp rise after contineous full load run as specified in SSR part -I and is - 1180 Part I (revised) shall be stand by adjusted to suit the maximum ambient temp prevaling at site all as specified comprising with the following specification :-

(a) Oil conservator tank with fillings holes and cap filter type drain valve and oil level gauge. (b) Silicagel breather with connecting pipe, first fill of dehydrating agent. (c) Explosion relief mounted on tank with double diaphram and equalizer pipe connected to conservator air tank (pressure release valve). (d) Air release valve plug. (e) One cable box on LV side (Secondary) consisting of 04 Nos porcelain bushing with nuts, washers & bushing rods with 01 cable gland suitable for reception of taking out suitable size cable, including gland joints complete all as specified. (f) Explosive vent. (g) 01 No 100 mm dial type thermometer vapour pressure type having range 0-120 degree centigrade with max temp indicator and resetting device incl max reading pointer washer etc. (h) Thermometer pocket on tank cover. (j) 04 Nos plain solid CI dtachable rollers. (k) Two Nos Earthing terminals marking plate. (l) Rating plate and terminal marking plate. (m) Extra bushing for neutral outside the cable box brought out on LV side. (n) First filling of oil conforming to IS and tested upto 60 KV dielectric strenght.

(o) Lifting lugs. (p) Oil drain valve with plug. (q) One cable box on HV side (Primary) consisting of 01 cable gland suitable for reception of taking in HT cable including gland joints complete all as specified. (r ) Hand hole of sufficient size to assess interior of tank. (s) Dehydrating breather with first filling of Dehydrating agent. (t) Two earthing of terminal on tank body to faciliture fixing of 32x6mm GI strip. (u) Rating plate with terminal marking plate. (v) Inspection cover. (w) Extra bushing for neutral out side the LV side. (x) PCC plateform complete all as specified including XPM welded mesh fencing and doors including 75 x 40 mm channel. Note:- (i) Anything missed above but is required for efficient functioning of transformer is deemed to be included in the quoted rate. (ii) Full load testing shall be done at site. The artificial load shall be arranged by contractor. This is included in above quoted rate. Note: Testing and commissioning of transformer shall be carried out by SEI from HQ CE CC or rep of acceipting officer before issue of completion

Supply,testing and commissioning of Silent/containered Diesel Engine Generating set 415 volts 100 KVA 3-Phase 0.8 power factor 50Hz . 1500 RPM self Exicited self regulated brushless AC generator installed including accoustlic enclosure suitable for ambient condition at site and confirming to condition under IS 4722/1460,BS 5514/2613/5000 ISO 8526/3046 with and including following :- (A) Alternate :- Standard Design alternator rated at 100 KVA net output at site after considering derating as per site conditions at .8 (lag) power factor AC, 3-phase 4-wire 415 volts 50Hz , 1500 RPM,self exicited self regulated screen protected drip proof IP 23 Enclosure Brushless design with winding in pole faces, insulating class 'H' and voltage regulation of + 1% at rated voltage from no load to full load The alternator shall be confirming to BS 2613/5000 and shall be inposition to generate supply with frequency regulation with in + % tolerance. The alternator will be suitable for tropical climate and shall generally confirm to BS-2613/5000/ IS -4722. (i) Insualation class - 'H' (ii) Temparature rise class - 'H' (iii) Excitaion : Self Excited (vi) regulation performance : The voltage is kept constant with + 1%, manual voltage adjustment within + 5%. (v) Frequency regulation + 1% (B) Diesel Engine :- Adquate capacity diesel Engine suitable for 100 KVA coupled Drive independently above alternator and after considering derating as per site conditions after generating and reducing power consumed by accessories , directly coupled through flexible coupling , multi cylinder multi stroke direct injection, cold starting 1500RPM, as per relevant ISI/BS-5514 with an overload capacity of 10% for one hour in 12 hours continuous running complete with standard accessories all as per specified and required for safe handling and operation. Salient features & other outer accessories of DG Set shall be as per under:- (i) Fly wheel with housing (ii) Cooling system :- Mounted radiator with fan & belts. (iii) Cooling water Pump :- Centrifugal type belt driven (iv) Exaust System shall be as per design of manufature and mounting of exhaust pipe shall be as per site requirment.

(v) Exhaust manifold Silenser : Residential type Bellows (vi) Fuel System :- Fuel injection system with fuel injector, fuel injection solenoid switch/ nozzles/ governer electronic type capable 1% speed /frequency regulation. fuel filtters fuel hoses (vii) Lub oil system:- lubricating oil filtter lubricating oil pump. (viii) Air intake system :- Air intake manifold Air cleaner dry type (ix) Governer :- Hydro Mechanical /Electronic Governer (x) Starting system:- Electric self Starter with maintenace free batteries including battery charging alternator. (xi) Batteries:-01 No Maintenece free Battery of 12Volts 180 AH capacity complete with copper conductor multistrnded leads of suitable length from self starter to the battery terminals complete with initial charge and initial fill of electrolite all as specified.

Make:- EXIDE/AMRON/Manufactures Make Starter gear ring Start/stop shall be as per manufacturer design with latest technology. Handling and operation : Salient features of accessories shall be as under : Radiator with blower fan Corrosion inhibitor coolant Paper element filters for fuel, lub oil Fly wheel housing and fly wheel. (xii) Generator Monitoring Panel: comprising of following (a). Microprocessor based genset controller for metering, monitoring, governing and protection (b).Engine protection for low lub oil pressure, high coolant temperature (alarm & shutdown) (c).Alternator protection parameters like under voltage, over current, under frequency, over freqency (alarm & shutdown) (d). Relay drivers for remote annuciations (e). Cyclic cranking (f). Auto/manual start/Stop (g). Alternator trim adjustment from the front key pad (h).Operators within a temperature range 0-50 celsius and humidity upto 95% (i). Remote monitoring capability through separete modules (j).Genset metering parameters like lube oil pressure, coolant temperature, engine speed(rpm), run hours , DC voltage, 3 phase volts and 3 phase amperes, frequency, KW, KVA, Power, power factor (xiii) Safety controls:- Engine low lube oil pressure, high water temperature and over speeding of engine. (xiv) Coupling arrngment :- Flexible coupling/close coupling as per manufacturer design.(xv) Accessories :- AVM pads as per manufactrer design.(xvi) Base frame made out of MS channel as per manufacturer design. (xvii) Fuel Tank :- Daily Services fuel tank of capacity suitable for 8 hrs continous operation made out of 3mm thick (Heat Retardant) sheet top and bottom with caliberated level including arrangement, stop cock, drain plug, fuel pump of suitable capacity and connected pipe line should be installed with inbuilt tank inside accoustic enclosure is inclusive of the cost of DG set and as per manufacurer design. (xviii) Deliveriables:- confirms the norms established by CPCB. Note: Making of plinth as suitable for fixing of DG Set.

NOTE:- The following items are deemed to be include in the rate quoted for DG set :- (i) The capacity of generator set shall be net after all due derating factors as per relevant ISI standard. (ii) The quoted rate shall be deemed to br inclusive of first fill of lubricant oil and final successful acceptance test. (iii) The qouted rate shall be deemed to be inclusive of 12 hours test run at site including of one hour on 10% overload in presence of representative detailed by accepting officer, all arrangements are to be made by the contractor for tests. (iv) Rate quoted shall be deemed to be included in making necessary holes to walls and making good to disturbed surfaces of match to original specification and connection up specified and directed. (v) DHPP for testing purpose shall be supplied by the contractor without any extra cost to govt. (vi) The contractor shall arrange for artificial load for testing for final testing of DG set at site and the cost is deemed to be including in above offer.(vii) Testing of sound level shall be carried out at the site in presence of GE and test result shall also be signed by GE (viii) Standard documents as per manufacturer specification such as maintenance & operation manual, parts calalogue, display charts such as maintanance and oil change chart/board (for generator and diesel engine ) and log book as directed by E-in-charge.

Suply and fix ON LOAD change over switch 415 V in sheet metal enclosure 4 pole of capacity 200 Amps complete all as specified and directed.

Excavating in trenches (soft/loose/dense soil), n.exc. 1.5metre wide and n.exc. 1.5metre in depth for cable n.exc 10sqmm of plan and n.exc 1.5 m in depth and getting out complete all as specified and directed.

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

Removal excavated material n.exc. 50 metre and depositing where directed at a level n.exc. 1.5 metre above starting point complete all as specified and directed.

M&L for clean and dry sand (unwashed) in trenches around the cable for cushioning complete all as specified & directed. Note :- Sand cushioning 8cm before laying the cable and 15cm after laying the cable & punned down 18cm,and punned thickness shall be measured and paid.

Supplying and laying un-reinforced precastconcrete cable cover, class HVP,type 2 with peak, size 450mm x 180mm x 40mm complete all as specified and directed.

S&F for GI tubing 'light grade'100 mm bore with all necessary fittings laid in trenches/under road crossing/fixed on pole/wall/under floor including suitable mild steel FI clamps of required size complete for following sizes :-

Supply, laying & testing cross linked polyethylene insulated (XLPE) galvanised steel strip armoured cable with aluminum conductor, 11 KV `E’, of cross sectional area 95 Sqmm, three core (IS-7098) in trenches/through pipes/ducts or on poles at crossing of OH lines of MES and road crossing and including cable indicator complete all as specified and directed .

Supply, laying & testing cable jointing kit for 11 KV (earthed) grade cable for outdoor termination 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 .

Supply, installing, connecting and commissioning switch air break gang operated, triple pole, vertical mounted, out door type of 12 insulators, mechanically operated, mounted on insulators and steel frame, with operating mechanism and operating rod of 25mm bore GI pipe heavy grade worked from ground level, with locking arrangements including brass pad locks with key (Make. Godrej/Harrison/Link) for current rating 400 Amp at 11 KV, complete all as specified and directed.

S&F 2 Pole Structure steel tubular pole,HT Line ,welded(11meter long) complete with CI base plate,bolts,nuts& screws all as specified including the following:-(a) Excavation in post hole not exceeding 1.5 Mtr wide & 2 mtr deep for pole foundation & getting out in soft loose soil,returning filling in the excavatedsoil after fixing the pole in foundation,ramming earth around in layers n.exc 25 cm thick and disposal of surplus soil to a distance n.exc 50 mtr. (b) M&L for providing PCC 1:4:8 type D2 (using 40 mm graded stone aggregate) in foundation 600mmx600mmx1500mm (planting depth) for concrete encasing the pole upto GL. including painting of pole with two coats of synthetic enamel paint over a coat of red oxide primer and Black & White alternate strip upto 1.5mm high from ground level complete all as specified and directed.

S&F Cross arm bracing support,clamp,and back plate coated from structural steel sections including nuts bolts,washets weldings bendingscold or hot drilling holes for bolts in any shape or size as indicated or directed and inclusive of one coat red oxide primer coat,one under coat and one finising coat of synthetic enamel paint complete all as specified and directed.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 120 Sqmm 3.5 core complete all as specified and directed.

M&L for earthing as per IS:3043 with galvanized steel earth plate electrode 600 x 600 x 6.0 mm thick buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metre below normal ground level connected to galvanized iron 32x6 mm strip (8 SWG) as earthing lead protected by GI pipe medium grade 25 mm bore for protection of GI earth strip and 20 mm dia GI pipe medium grade for watering with alternate layers of charcoal /coke and salt including all accessories like nut, bolts, reducer, nipple, wire meshed/screened funnel and making brick masonry finished chamber of internal size 300 mm x 300 mm x 300 mm with concrete base, covered with a cast Iron hinged cover resting over the cast iron frame painted with black bitumastic paint which shall be embedded in the block masonry including excavation works, refilling, connected to main switch/MCB DB for feeding the electric supply compete all as specified as shown in electrical plate no. 3 of SSR Part-I and testing of earth resistance as required complete all as specified and directed.

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