REPAIR/ MAINT OF TRANSFORMER/HT SWITCHGEARS, HT UG CABLES, LIGHTENING ARRESTORS INSULATORS AND ALLIED WORK AT AYODHYA UNDER AGE (I) AYODHYA.

Amount

Dismantling insulators of any type and any size from HT poles and removed from the site complete all as specified and directed by Engr-in-Charge.

M&L in replacement for Disc insulator with hardware fitting porcelain vitreous,Malleable cap, sannding ,Ball pin, Bituminous paint for 11000 volts complete all as specified and as directed by Engr-in-Charge.

M&L in replacement for post insulator porcelain vitreous,white,brown or green insulator incl one galvanised mild steel spindle two galvanised iron washer and one galvanised iron nut for 11000 volts grade complete all as specified and as directed by Engr-in-Charge.

M&L in replacement for pin insulator with G.I. Pin porcelain vitreous,white,brown or green insulator incl one galvanised mild steel spindle two galvanised iron washer and one galvanised iron nut for 11000 volts grade complete all as specified and as directed by Engr-in-Charge.

Supply and install HT 33 KV post insulator including fixing arrangements complete all as specified and directed.

Supply and install HT 33 KV PIN insulator including fixing arrangements complete all as specified and directed.

Supply and install HT 33 KV/630 Amp HT Bushing insulator including fixing arrangements for 3.15 MVA Transformer complete all as specified and directed.

M&L in replacement spindle for pin insulator suitable for 11000 volts grade complete all as specified and as directed by Engr-in-Charge.

M&L in replacement spindle for pin insulator suitable for 33000 volts grade complete all as specified and as directed by Engr-in-Charge.

Supply & laying steel tubing, galvanized light grade bores, for passing HT cable under road or PCC floor or fixed on wall/on pole or drain etc or whenever protection is required including necessary clamps and nut bolts with GI fitting complete all as directed and specified as follows:- (a) GI Pipe 100 mm dia.

(b) GI Pipe 80 mm dia

Hiring of cable fault detector, to detect exact position of fault for XLPE /PVC HT cable, 11000 Volts grade heavy duty aluminium conductor of any size complete all as specified and directed by Engr-in-Charge.

M&L in repair out door type cable end termination joint heat shrinkble type suitable for HT UG cable of size 95 sqmm 3 core 11KV of aluminiun conductoe all as specified and testing after jointingcomplete all as specified and directed. Make-Denson/raychem/mahindra

M&L in repair out door type cable end termination joint heat shrinkble type suitable for HT UG cable of size 120 sqmm 3 core 11KV of aluminiun conductoe all as specified and testing after jointing complete all as specified and directed. Make-Denson/raychem/mahindra/Cabseal

M&L in repair indoor type cable end termination joint heat shrinkble type suitable for HT UG cable of size 95 sqmm 3 core 11KV of aluminiun conductoe all as specified and testing after jointing complete all as specified and directed. Make-Denson/raychem/mahindra/Cabseal

M&L in repair indoor type cable end termination joint heat shrinkble type suitable for HT UG cable of size 120 sqmm 3 core 11KV of aluminiun conductoe all as specified and testing after jointing complete all as specified and directed. Make-Denson/raychem/mahindra/Cabseal

S&F in replacement of Cable termination heat shrinkable jointing kit for 11 KV straight through type suitable for HT cable XLPE insulated aluminium conductor of size 95 Sqmm 3 core complete all as specified and directed by Engr-in-Charge.

S&F in replacement of Cable termination cold shrinkable jointing kit for 11 KV straight through type suitable for HT cable XLPE insulated aluminium conductor of size 120 Sqmm 3 core complete all as specified and directed by Engr-in-Charge.

M&L for Earthing complete with galvanised steel earth plate electrode 60x60cmx 6 mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of the plate not less than 1.25 mtr below normal ground level,connected to galvanised 32 mm x 6 mm earth strip by means of nuts,bolts, washer of GI steel as shown on electrical plant No 3 of MES schedule part I connected to earthing test point and testing on completion with including necessary excavation and earth work, earth electrode, earthing lead from electrode to equipment /substation , adequate quantity of charcoal dust and comman salt , test point pcc (1:3:6) type C-I (using 20mm graded black trap/granite/basalt stone aggregate) for earth pit with 40x40x6mm mild steel angle iron frame for cover,pre-cast RCC (1:2:4) type B-I (using 20mm graded black trap/granite/Basalt stone aggregate) 40mm thick cover, reinforced with 6mm dia bars 3 Nos both way with 12mm dia round bar handle, GI light grade watering pipe 15mm dia with funnel and wire mesh, and 40 mm dia GI light grade earth lead protection pipe, 7.5 mtr only from the top of earth electrode are deemed to be included under this item and additional earth lead, if any, required at site shall be measured and paid for seperatly under appropriate item of schedule `A'. complete all as specified and as directed by Engr-in-Charge.

M&L for Earth contineuty conductor or main earthing lead fixed to walls or to poles or any other indicated situation for loop earthing with 32mm x6mm earth strip complete all as specified and as directed by Engr-in-Charge.

S&F in repairs Air brake gang operated switch HT 11 KV , TP with 09 insulators, 200 Amps capacity currents rating with 06 post insulators type dropout fuse assembly on 11 kv insulators with fuse carriers & fuse element mounted on steel frame horizontally operated rotary type, with operating mechanism consisting of operating rod 25 bore light grade GI pipe of suitable length worked from ground level and applaying of grece for moveing parts and Jelly for male and female contact parts with locking arrangement, FI clamps 50mmx6mm including MS channels MC-100 for fixing GOD unit including nuts, bolts, and washers complete all as specified and directed by Engr-in-Charge.

On site Repair/Greasing for smooth function 11 KV Air break gang operating switch Triple pole with mechanically vertical operated, mounted on insulator and steel frame operating mechanism worked from ground level required insulator any other item is taken from above item No serviceable materials and applaying of grece for moveing parts and Jelly for male and female contact parts complete all as specified and directed by Engr-in-Charge.

M&L for Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amps suitable for 11000 volts complete all as specified and directed.

Labour for cutting/ trimming of tree branches up to 80 mm thickness along the alignment of LT /HT over head electric line which are going/ touching or falling or ACSR conductor/ poles or near by sub stns etc at any height from GL and making clearance 1.5m form conductor and removing to a distance up to 100 mtr where directed by Engineer-In-Charge. Note:- (i) Trimming of the branches on one sides of the conductor. (ii) actual length of cutting will be measured. (iii) The distance as motioned above will be maintained during contract current period & same location subject to at least 6 months period between two trimming/leaping. (iv) Measurement will be taken including all conductor as one only.

M&L for Preparation of old painted surface of steel tubular swaged poles (9 to 11 meter long) with good neck brackets including junction box, GI pipe and painting with one coat of aluminium paint including cleaning the acrylic cover and painting with black to 1.5 mtr height from top of PCC coping and marking pole numbers with one coat of synthetic enamel paint complete all as specified and directed by Engr-in-Charge. by Engineer-in-Charge. Make - Shalimar/Nerolac/Berger.

M&L for Preparation of old painted surface of 4 Pole structure consisting of steel tubular swaged poles (9 to 11 meter long) with all connected cross arms, chennel , GI pipe etc complete and painting with one coat of aluminium paint including cleaning the acrylic cover and painting with black to 1.5 mtr height from top of PCC coping and marking pole numbers with one coat of synthetic enamel paint complete all as specified and directed by Engr-in-Charge. by Engineer-in-Charge. Make - Shalimar/Nerolac/Berger.

M&L for Preparation of old painted surface of 2 Pole structure consisting of steel tubular swaged poles (9 to 11 meter long) with all connected cross arms, chennel , GI pipe etc complete and painting with one coat of aluminium paint including cleaning the acrylic cover and painting with black to 1.5 mtr height from top of PCC coping and marking pole numbers with one coat of synthetic enamel paint complete all as specified and directed by Engr-in-Charge. by Engineer-in-Charge. Make - Shalimar/Nerolac/Berger.

S&F in replacement in position of following items for transformer including welding, brazing etc complete all as specified and directed by Engineer-in-Charge:-

(a) GM Gate valve 25 mm dia with with 150mm long nipple of GI.

(b) GM Gate valve 40 mm dia with 150mm long nipple of GI.

(c) Breather assembly transparent type filled with silica gel suitable for transformer of capacity up to 200 KVA.

(d) Breather assembly transparent type filled with silica gel suitable for transformer of capacity 250 KVA to 630 KVA.

(e) Temperature gauge 100 mm dia. with dual calibration in degree Celsius and Fahrenheit, range 0 to 100˚c and equivalent degree Fahrenheit.

(f) Glass gauge for Oil level indicator suitable for Transformer up to 630 KVA capacity.

Dehydration/filtration of transformer oil by centrifuging machine without disturbing electric supply by heating/filtration of oil to achieve dielectric strength not less than 50 KV when measured at 2.5 mm gap for one minute and topping up to oil level mark at the conservatior complete all as specified and directed by Engineer - in - Charge. Note :- (i). The contractor shall make his own arrangement for centrifuging machine, Motorised Break Down Kit and all T&P and manpower required at site centrifuging and topping up etc and unit rate quoted shall be deemed to include for the same. (ii) New transformer oil as required shall be measured and paid separatly under respective item as supply only.(iii)The rate quoted by contractor shall deem to be included for three phase generator supply for dehydaration if required. (iv) Record of new insulating oil used for replacement and topping up oil in transformer shall be maintained duly signed by rep of contractor and AGE E/M.

Supply only new transformer oil as per IS for topup with dielectric strength complete all as specified and directed by Engineer - in - Charge. Make- Savita/Power Oil.

Disconnecting all the electric connections from HT and LT side incl earthing terminals from the transformers and taking down transformer from plinth by using crane and transfer to workshop for repair after repair reinstall at existing location including testing of 33/11 KV capacity 2 MVA all as specified and directed by Engineer-in-Charge.

Taking down carefully transformer any capacity, any make, any type from pole / plinth by dismantaling, dis-connecting HT & LT sides, earthings of transformer, supporting angles/crossarms, Shifting / transporting transformer carefully from the site to the workshop and refixing at site after repair with all electrical connection

Dismantaling top cover of transformer of capacity upto 630 KVA , any make for repair / replacement of HT / LT bushing of transformer , or for replacement of top cover gasket or for inspection of transformer or for minor internal repairs of transformer all including draining carefully transformer oil as required / upto the required level and refilling the same,Cleaning, core ovening re fitting the top cover of transformer after completion of the work including testing complete etc all as specified and directed.

Note: - spare parts will be measured and paid seperatelly

HV Bushing with terminal rod.

LV Bushing

Filter valve.

Arching Horn.

Rewinding of unsv/burn 33/11 KV, HV coils with supper enamelled copper wire as per existing gauge including paper insulation, packing sheet, drying varnishing, and making connections complete in all respects complete all as specified and directed.

Rewinding of unsv/burn 33/11 KV, LV coils with supper enamelled copper wire as per existing gauge including drying paper insulation, packing sheet, varnishing and making connections complete in all respects complete all as specified and directed.

Rewinding of unsv/burn 11/0.433 KV, HV coils with supper enamelled copper wire as per existing gauge including paper insulation, packing sheet, drying varnishing and making connections complete in all respects complete all as specified and directed.

Rewinding of unsv/burn 11/0.433 KV, LV coils with supper enamelled copper wire as per existing gauge including paper insulation, packing sheet,drying varnishing and making connections complete in all respects.

M&L for painting of the transformer of following ratings with one coat of first quality synthetic enamel paint by spraying gun after preparation of old steel surfaces including writing SM/ MES numbers complete all as specified and directed by Engineer-in-charge.

(a) up to 160 KVA.

(b) 250 KVA to 630 KVA.

Repairs to the leaks of transformer from tap switch/ fins/ any pats of body, by replacing gasket / seal , or Repairs to the leaks of transformer body / fins, by welding / brazing etc complete all as specified and directed.

M&L for preparation of foundation for transformer as per OEM standard of size 2M X 2M X 1M height including necessary brick work, filling and mass concreate of type B-2, 1:2:4 (40mm grade stone aggregate) filling on top surface 60 mm Thick complete all as specified and directed .

Supply and fix PVC fuse ring jumper, 200 Amp,11 KV ( R,Y,B colour) including fixing arrangement all as specified and directed

Supply and fix in replacement auxilary relay 110-250 Volt DC suitable for over current /earth fault switch gear protection. Make - Alsthom Model No- VAA21ZG8502F(M)

Supply and fix in replacement of 11 KV numirical 3 phase over current & 1 Earth fault switchgear protection relay with instantaneous high set and programmable output to simplify feeder protection wiring etc complete and testing on completion complete all as specified and directed. Make- Crompton, model No CGL14N.

Supply and fix in replacement of 33 KV numirical 3 phase over current &1 Earth fault switchgear protection relay with instantaneous high set and programmable output to simplify feeder protection wiring etc complete and testing on completion complete all as specified and directed. Make- Crompton, model No CGL14C.

Servicing / Calibration to 11KV HT VCB indoor type complete including the following (a)Taking out 11KV HT VCB of 400/630 Amp rating trolley from HT Panel after switching off electric supply. Checking of all mechanical/electrical/control system for proper functioning e.g. spring charge system, triping system, remote operation, indication system, upward-downward/in-out movement of HT VCB trolley,etc including opening the VCB trolly & checking the quality of insulating material,vaccum system complete.Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing with AP-3 grease and reassembling the VCB including connection to HT panel complete faulty parts to be replaced where reqd complete all as specified and directed by EIC.

Description same all as per item No 58 here in above but for 33 KV VCB out door type complete all as specified and directed.

Servicing / Calibration 11KV HT RMU,outdoor type 3 way complete including the following (a) taking out 11KV HT mechanism of of RMU 630 Amp rating trolley from HT Panel after switching off electric supply. Checking of all mechanical/electrical/control system for proper functioning e.g. spring charge system, triping system, remote operation, indication system,etc including checking the quality of insulating material, complete.Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing and reassembling the including motorised operatin and connection to HT panel complete faulty parts to be replaced where reqd complete all as specified and directed by EIC.

Supply only SF6 gas suitable HT 11 KV RMU complete all as specified and directed.

Supply only shunt trip coil assembly suitable for HT, VCB, operating on 24/110 volt system and testing complete all as specified and directed by EIC.

Supply only closing coil operated on 24 volt DC system suitable for working of relay of HT VCB complete all as specified and directed.

Supply only Motor cut off limit switch sutable for HT 11 KV VCB complete all as specified and directed.

Supply only Push Button element with one NO / NC complete all as specified and directed.

Supply only in repair limt switch suitable for ABB safe plus RMU complete all as specified and directed.

Supply only Big Gear Assembly complete all as specified and directed.

Supply only Motor cut off limit switch complete all as specified and directed.

Auxiliary switch 6 NO/6NC complete all as specified and directed.

Supply only Top plate spout complete all as specified and directed.

Supply only jaw contact suitable for 11 KV indoor VCB complete all as specified and directed.

Supply only vacuum interupter bottel suitable for HT VCB 11 KV. The replacement shall be done by OEM rep/competent Engineer complete all as specified and directed by engr in charge

Supply and fix battery inside RMU power pack back up of capacity 12 volt 14/12 AH including removing old battery etc complete all as specified and directed.

Supply only spring mechanism motor & gear set complete all as specified and directed

Supply only O/c and E/F relay (self power) complete all as specified and directed

Cleaning, servicing and testing complete HT 33/11KV switch yard, various equipment, over head line complete at MRS complete all as specified and directed by EIC for the following :-

(a) line isolator, 33 KV (Horizontal type) :- Servicing of line isolator (Horizontal break outdoor type) including cleaning of contact by CTC liquid proper oiling greasing on contacts & moving rod / handle for proper function of moveable rod for smooth ON / OFF position and checking the incoming and outgoing connection (terminal lugs to be replaced if required) and testing with following

(i) Meggar testing between phase to phase& phase to earth shall be carried out .

(b) HT Potential Transformer or (33 KV / 110 Volt outdoor type) :- Cleaning of bushing and terminal of HT potential transformer (33 KV) / (110 volts) (outdoor type) by CTC liquid and checking of oil level and oil dielectric strength (BD test) and proper connection checking/tightining of control wiring and testing with following :-

(i) Meggar testing between phase to phase& phase to earth.

(c) HT 33 or 11 KV outdoor/indoor type Current Transformer (CT): Cleaning of bushing and terminal by CTC solution of CT 33 or 11 KV of any ratio and any type and checking of oil level and oil dielectric strength (BD test) and proper connection checking/tightining of control wiring and testing with following :-

(i) Testing between phase to phase& phase to eart to be carried out by external current injection kit.

(d) 33/11 KV VCB Control & Relay Panel( 04 Nos 11 KV Panel and 02 Nos 33 KV Panel) :- Cleaning of control & relay panel inside & outside and checking/tightning/rewiring (if required) (cost of new wire is included in quoted rate) all the control cable connection of CT,PT,VCB, meters, trivector meter transformer complete and testing with the following :-

(i) Over current & earth fault relay tripping by external current injecting kit on Primary&Secondary side.

(ii) Buccholz relay alarm & tripping testing.

(iii) Oil temperature alarm & tripping testing.

(iv) Winding temperature alarm & tripping testing.

(e)Transformer 33 / 11 KV, up to 2 MVA :- Cleaning of power transformer 33 /11 KV,outdoor type externally including all accessories (such as conservator tank, marshaling box, bushings, bucholz relay Radiator, bushings oil level indicator) complete and checking the incoming and outgoing terminal connection complete with the following testing :-

(i)Transformer oil dielectric strength (BD voltage) test.

(ii)Buccholz relay Alarm & trip testing.

(iii)Oil temprature Alarm & trip testing.

(iv) Winding temprature Alarm & trip testing.

(v) Meggar testing between HV to earth.

(vi) Meggar testing between LV to earth.

(vii) Meggar testing between HV to LV .

(ix) Earth resistance test for body earthing.

(x) Replacement all packing and viewing glass in marshilling box ( if required)

(f) D.O. Fuse: Cleaning of 33KV HT insulators & checking the incoming & outgoing joint connection,replacing with new DO fuse of approved rating and testing with the following :- (i) Meggar testing between phase to phase& phase to earth complete all as specified and directed.

S&F in replacement indication lamp (LED type) Red or Yellow or Green colour suitable for 30 volts DC (as required at site) complete all as specified and directed by EIC.

Supply, fixing, connecting and testing spring charging motor(Universal motor) for outdoor type, 33 KV, VCB,operated on 230 volts AC/ DC,with charging time less than 15 sec of approved rating complete all as specified and directed by EIC. Make - DELCO.

Supply and fixing of 33 KV, 50 Hz, Single Phase, oil filled inductive potential transformer outdoor type, Ratio - 33/sqrt(3)/110/sqrt(3), Two secondary windings, voltage factor - 1.2 continuous, 1.5 for 30 Sec, Creepage : 900 mm, Windding - 1: class-1.0, 100 VA suitable for 33 KV complete all as specified and directed by Engr-in-Charge.

Description same all as per Item No 102 here in above but suitable for 11 KV VCB indoor cast resin type complete all as specified and directed.

S & F in replacement vaccum intrupter unit of 33 KV out door type VCB complete with insulator and assembly 630 amps rating,all including assembling, testing and commissioning at site complete all as specified and directed.

Supply and fix in repair Ampearmeter with digital display suitabale for measuring 11 KV electrical parameters fixed in existing panel board etc complete all as specified and directed.

M&L for Painting of 33 KV Switch yard at MRS and TV tower compleate for all steel/iron structure (Including poles but excluding CBs and Transformers) of switch yard with two coat of aluminium paint over a coat of red oxide primer completely (including preparation of surface for painting) and complete all as specified and directed by EIC/GE.

Supply and fixing lightning arrester expulsion type complete with all fitting transmission class, discharge cap 65 kilo amp 33000 volt complete all as specified and directed. by Engr in charge

S&F in replacement of U/S control cable with copper conductor PVC insulated sheathed armoured of size 1.5 Sqmm 8 core complete all as specified and directed.

S&F in replacement of U/S control cable with copper conductor PVC insulated sheathed armoured of size 1.5 Sqmm 4 core complete all as specified and directed.

Supply installation, commissioning and testing of HT 33 KV outdoor type gang operated air-break switch with insulator and earth switch upto 400 Amp and fitted on steel frame horizontal operated (rotary type) mechanisum from ground level consisting of operating rod of 25 mm bore light grade GI pipe of suitable length worked from ground level and with locking arrangement including clamp, nuts and washers complete all as specified and directed.

Supply and install HT 33 KV Drop out fuse with double stack channel type insulator including fixing arrangements complete all as specified and directed.

Supply and install HT 33 KV jaw clamp including fixing arrangements complete all as specified and directed.

Dismentling of HT Pole of Size 9 to 11 Mtr, transporting to another location and refixing, made of 2 Pole structure (DTR) , including necessary PCC Work required complete, fixing of necessary channel and all connection all as specified and directed.

M&L for Cement concrete for filling in foundations or making good of Road, PCC Floor, supports etc. Type B-1, 1:2:4, using 20 mm graded stone aggregate including necessary form work and fair finishing of exposed surface of concrete / facia finish with cement mortar complete all as specified and directed.

M&L for mild steel work with angle iron, channel etc as in post and struts in fencing including cutting tops to shape, as directed, drilling holes, notching for wire etc flat iron fillets (for securing wire mess etc) including all necessary drilling, bolting or rivetting etc complete all as specified and directed.

M&L for chain link fencing galvanised including line wires 4 mm dia, mesh size 150x100mm weight not less than 2.3 Kg/sqm and type of standards rails, straining bolts etc. Including provision of binding wire and fixing complete all as specified and directed.

Supply and laying synthetic rubber insulated mats 2.5 mm thick for voltage upto 11 KV for electricla purpose as per IS 156 52 - 2006 (superseding IS 5424) suitable for electrical shock safety complete all as specified and directed.

Supply, spreading and leveling of stone aggregate 40 mm grade at MRS area complete all as specified and directed.

Hindustan Power Corporation (BID ID -3066052)

Avion Industries (BID ID -3065901)

MTR GROUP & COMPANY (BID ID -3057212)

Vijay Engineering Works (BID ID -3057004)