Renovation of Switch Yard including all equipments AND Construction of the same into spread out type 33/11 KV S/S With Augmentation of PTR Capacity at C K Road 33/11 KV S/S Under Midnapore Div Under Paschim Medinipur Region

Amount

Description of Work

Erection of 12.8 Mtr Long Rail pole with all fittings but without any insulator(Rail pole s& raw irons to be supplied by WBSEDCL)

Erection of DP Structure by 8 Mtr Long PCC Poles

Erection of 4-pole structure on 9 mtr. long P.C.C. pole with all fittings ( P.C.C. pole & raw irons will be supplied by WBSEDCL) and foundation but without any insulator.

a) 33 KV H.L. Gantry-cum Isolator with LA support structure along with supply of all nuts & bolts & LA Base Plate 430x430x8 mm( Ref. Drg. No.- RE/SS/39)

b) 33 KV H.L. Isolator support structure. (Ref. Drg. No.- RE/SS/34)with supply of all nuts & bolts

c)33 KV H.L. Bus support structure. (Ref. Drg. No.- RE/SS/34)

Erection of 4-pole structure on 9 mtr. long P.C.C. pole with all fittings ( P.C.C. pole & raw irons will be supplied by WBSEDCL) and foundation but without any insulator.

a) 33 KV L.L. Isolator support structure(Ref. Drg. No.- RE/SS/41)

Installation/ Erection of 33 KV, dual core, dual ratio 400/200/1-1 Amp. Current Transformer (Supplied by WBSEDCL) including supply and erection of necessary structure (As per drg no. Drawing No. PLN (D)/SS/57) with water proof hinge door junction box made of 2 x 1 x 2 inch MS Bar for connection and fixing the box with fabricated CT structure with necessary connectors as required.

Dismantle of Existing CT Sturture with one SET Of 400-200/1-1-1 CT & Reerection the same with supply of water proof hinge door junction box made of 2 x 1 x 2 inch MS Bar for connection and fixing the box with fabrication of CT structure with necessary connectors as required

Laying of 2.5 sqmm Copper control cable (4/8/12)core for interconnection of 33 KV Control & Relay Panel, New 10 MVA Power Transformer, associated CTs, PTs, VCBs, Battery and Secure Meter with supply and fixing of Cable Gland, Ferrule, PVC Tape, Socket etc. a) Through existing trench. b) by cutting soil (0.5x0.5x1 mtr) with protection of first class bricks and sands on three sides and soil covering on top. (Control cables will be supplied by WBSEDCL) as directed by site engineer.

i) 4 core control cable

ii) 8 core control cable

iii) 12 core control cable

Installation/ Erection of 33 KV, tripple core, dual ratio 200/100/1-1-1 Amp. Current Transformer (Supplied by WBSEDCL) including supply and erection of necessary structure (As per drg no. Drawing No. PLN (D)/SS/57) with water proof hinge door junction box made of 2 x 1 x 2 inch MS Bar for connection and fixing the box with fabricated CT structure with necessary connectors as required.

Installation/ Erection of 33 KV Potential Transformer (Supplied by WBSEDCL) with supply of water proof hinge door junction box made of 2 x 1 x 2 inch MS Bar for connection and fixing the box with fabrication of PT structure with necessary connectors as required.

Dismantle of Existing PT Sturture with one SET PT & Reerection the same with supply of water proof hinge door junction box made of 2 x 1 x 2 inch MS Bar for connection and fixing the box with fabrication of PT structure with necessary connectors as required.

Fabrication and erection of 11 KV cable end box supporting frame work by M.S. Chanel, Angle and Flat ( raw irons will be supplied by WBSEDCL) complete with all fabrication & foundation for terminal arrangement of 33/11 KV, 10 MVA Power Transformer (Ref. Drg. No.- PLN(D)/SS/79 & 85)

Fabrication and erection of L.T. Cable support structure with foundation for terminal arrangement of 100 KVA, 33/0.433 KV Transformer for station service with raw irons ( to be supplied by WBSEDCL).

Fixing of 33 KV, 400 A, C.R type Isolator with earth switch on the existing outgoing gantry struture.

Fixing of 33 KV, 400 A, C.R type Isolator on the existing struture (H.L). W/O E/S

Fixing of 33 KV, 400 A, C.R type Isolator on the existing struture L.L ).

Erection/ Installation of 33 KV VCB alongwith structure on the existing concrete base by use of nuts, bolts etc (as per drawing) required for fabrication alignment, adjustment, connections etc. (33 KV VCB & structures will be supplied by WBSEDCL)

Dismantle & Re erection of 33 KV VCB SCADA Compatible As Directed by Site In Charge

Installation of 33 KV Inddor type, SCADA Compatible Control & Relay Panel Wth Differential Relay for Individual control of Power Transformer on concrete floor by grouting 75 x 40 x 6mm GI Channel and cutting of concrete base in control room (GI channels will be supplied by contractor) including necessary connection with Relays, Metering/Measuring equipments etc. with supply and fixing of Gland, Ferrules, PVC Tape and Sockets etc.

Installation of 33 KV Inddor type, SCADA Compatible Control & Relay Panel for Individual control of Feeder on concrete floor by grouting 75 x 40 x 6mm GI Channel and cutting of concrete base in control room (GI Channels will be supplied by contractor) including necessary connection with Relays, Metering/Measuring equipments etc. with supply and fixing of Gland, Ferrules, PVC Tape and Sockets etc.

Installation of scheilding arrangement by drawal 50 sqmm. ACSR conductor, fixing of inverted earthspike and complete the earth connection in all aspects. (Conductor will be supplied by WBSEDCL)

Fixing of 42 KV Gapless LA

Fixing of 12 KV Gapless LA

Installation of AC 3 Phase CT & PT Operated electronic meter for 3 Phase 3 Wire/ 3 Phase 4 Wire Blanced/ unbalanced load having meter accuracy class 0.5, TOD & Anti Tamper feature , Load Survey & measurement of all required parameters

Laying of XLPE 1 core 1000 Sqmm 11 KV Grade Cable (To be supplied by WBSEDCL) in the newly constructed Cable trench and then placing the slab on the trench after covering the cable by standered quality sand :-

Laying of XLPE 3 core 300 Sqmm 11 KV Grade Cable (To be supplied by WBSEDCL) in the newly constructed Cable trench and then placing the slab on the trench after covering the cable by standered quality sand :-

Laying of 4 core, 1.1 KV Grade, 120 sqmm XLPE Cable (To be supplied by WBSEDCL) from Station Service Transformer to ACDB through the newly constructed Cable trench and then placing the slab on the trench after covering the cable by standered quality sand including all necessary connection by suppling connectors etc.

Laying of 4 core, 1.1 KV Grade, 16/10 sqmm PVC Cable (To be supplied by WBSEDCL) For Electrical wiring purpose as directed by Site Engineer

Raising of 120 sqmm XLPE,3.5 C 1.1 KV PVC cable (To be supplied by WBSEDCL)at Station Service Transformer end across LT cable end structure height of 2 mtrs each by passing it through GI Pipe(Supplied by Contractor) ( Spec- Non Tata 100 mm Dia)and fixing the Pipe with the said structure including all connections.

Supply & Erection of Jointing Kit of 1CX1000 Sqmm 11 KV Outdoor End Temination Jointing by Approved band of WBSEDCL( 3M Or Raychem etc

Supply & Erection of Jointing Kit of 1CX1000 Sqmm 11 KV Indoor End Temination Jointing by Approved band of WBSEDCL( 3M Or Raychem etc

Supply & Erection of Jointing Kit of 3CX300 Sqmm 11 KV Outdoor End Temination Jointing by Approved band of WBSEDCL( 3M Or Raychem etc

Supply & Erection of Jointing Kit of 3CX300 Sqmm 11 KV Indoor End Temination Jointing by Approved band of WBSEDCL( 3M Or Raychem etc

Re Installation of Existing ACDB As Directed By Site Enginner

Re Installation of Existing DCDB As Directed By Site Enginner

Installation of 11 KV Shunt Trip 800 Amp, SCADA compatible, Indoor type VCB panel (0IN+0BC+1OUT) with allignment including interconnection of 11 KV Bus with transportation. (All nuts and Bolts to be supplied by the contractor)

Installation of OLTC/RTCC and connect in all aspect with 33/11 KV, 10 MVA Power Transformer including necessary connection by supply and fixing of Gland, Ferrules, PVC Tape and Sockets etc.

Dismantle & Reinstallation of 100 KVA 33/0.433 KV SST As per instruction of site engineer

Fixing of 33 KV Pin Insulator With Pin

Fixing of 11 KV Pin Insulator With Pin

Fixing of 33 KV Disc Insulator With Hardware Fittings Of Panther Conductor

Fixing of 11 KV Disc Insulator

Excavation of earth pit (60x60x300cm size) with supply and driving of long 40 mm dia (Inner) & 50 mm Dia (Outer) GI Pipe after making conical shape on the bottom of the pipe with perforation on body of the pipe placing of betonite with water at a ratio 1:2 to 1:4 in the pit and back filling as per IE rules and making box of pit by 1st class brick and cement.Necessary concreate slab(1:3:6)of thickness 7.5 cm are to be made for covering the top of the pit.Earth should be constructed in such a manner so that earthing strip can be taken out from the pit as per IE rules.The void of the pit should filled with coarse sand. Excavation for earth mat should be as per approved drawing & design of WBSEDCL.

Supply & erection of 6mtr Long Perforated GI Pipe (Jindal Make) 40 mm internal diameter for Mat & other equipment.The work to be done as per direction of the site Engineer

Supply & erection of 3mtr Long Perforated GI Pipe (Jindal Make) 40 mm internal diameter for Mat & other equipment.The work to be done as per direction of the site Engineer

Supply & Laying of 65x6 mm GI Flat including connection with earth electrode with necessary space arrangement on top of the earth electrode to facilitate regide welding.Welding of the flat must be contineous

Supply & Fixing of Havells Make Jeta Pro Plus(150W 5700K Code-LHFPCZBFP46J150) with Supplying & Fixing 40 mm dia x 1.68 long GI pipe (ISI medium) bracket with 40 mm x 10 mm thick , MS clamp etc. and providing wiring with 2x1.5 sqmm. PVC insulated & straded annealed copper wire (single core) and making connection in metal joint box as required. As per PWD schedule 18 of page C3.

Fixing of 11 KV TPGO Isolator

Raising of 1000 sqmm XLPE 11 KV cable (To be supplied by WBSEDCL) for three nos. incoming at Power transforemr end height of 3 mtrs each by passing it through GI Pipe(Supplied by Contractor) ( Spec- Non Tata 100 mm Dia)and fixing the Pipe with the said structure including all connections., .

Raising of 300 sqmm XLPE 11 KV cable (To be supplied by WBSEDCL) for two nos. outgoing at Power transforemr end across cable end structure, .

Switch Yard Painting with Approved Paint By Site Engineer & As per direction of site engineer

Drawal of Buses (H.L and L.L) with 200 sq. mm. ACSR Panther X 3 Cond.

Jumpering, dropper arrangement and connection(compression joint with supply of kit) with equipments, parts etc. with bus bar. (including supply of all Clamps , socket, connectors etc.) as per drawing.

Dismantle of Group Control CR Panel & Return to Store In Good Condition

Dismantle of 33 KV Gr Control CT & Return to store in good condition

Dismantle of CR Type Isolator & return to store

Dismantle of 33 KV TPGO Isolator & Return to Store

Dismantle of ACSR Dog Conductor & Return to Store(3W)

Dismantle of Iron Materials & Other Accssories

Uprooting of Rail Pole & Return To Store

Uprooting of PCC Pole(8 Mtr) & Return To Store

Dismantle of 33/11 KV 6.3 MVA(2 nos) & 5 MVA (2 Nos) PTRs & Return to Store in good condition

Demolishing of Existing Foundation & returning garbage materials under Supervision of Site In Charge

SAKTI PRASAD PATRA

M/S UNITED BUILDERS