Providing of 11kV and 33 kV CT and PT operated HE metering in 33 kV and 11 kV sub stations at STC Humhama, Srinagar JK.

Amount

Work items identified;

1.11kV Pilfer resistant metering cubicle for 3phase 4 wire metering system made of MS Sheet steel thickness not less than 2mm duly power coat painted suitable for indoor as well as outdoor as per the site requirement. The cubicle shall be painted through 7-tank process. The External dimensions should be adequate. Panel having two compartments upper Meter compartment and lower CT/PT compartment. Provided with synthetic or semi synthetic gasket firmly glued to the sufrace, Dust, weather and Vermin proof and shall comply degree of protection IP 65 both the chambers having one sided hinged door arrangments. The metering panel shall be provided with two No G.I channels of size 100 x 50 mm on the front and rear sides duly welded and 4 No of lifting hooks. It should be possible to take meter reading manually, through CMRI and computer without opening the LV chamber door. 2.Single Phase, Single core, single ratio, Epoxy resin Cast Current Transformers suitable for 11kV, copper wound primary type with rated burden 5VA and accuracy class 0.5 or better and conforming to IS2705 (part-I & II) amended upto date. ISF shall be upto 5.The CT ratio shall be as under:20/5 for 250kVA DT. 3.11kV/ 110 V, Three phase epoxy resin cast PT with rated burden 15VA per phase and accuracy class 0.5 or better and conforming to IS:3156 (part-I&II) amended upto date with proper colour coded identification. PTs shall be of uniform insulating and withstand separate source 23kV pf for one minute. 4.Bus Bar details:CTs bus bar:- 40x6 mm copper strip or adequate size PTs bus bar: Copper wire 8 SWG or 30x0.6mm copper flat strip to connect PT terminal of adequate size duly insulated by the monoplast tape. 5.PVC Copper wire flexible multi-strand of required size for secondary connections for CT wiring the minimum wire size shall be 4 mm² (RYB) and for PT wiring minimum wire size shall be 2.5 mm² (RYB). 6.Copper Lugs preferably ring type duly crimped for termination of wires and tapes . 7.Grounding bus of minimum 40mm copper, 25cm long fixed to the unit in HV chamber. The CTs, PT meter and 11kV Cable sheath shall be grounded to the bus through grounding wire (green) of min size 10mm². 8.3Ph3 Wire HT CT/PT operated Fully static Smart Tri-Vector Energymeters DLMS Compliant Category 'C' with RS 232 port for modem compatibility. 11kV/110V, Ph-Ph (3P,3W) meters for measurement of different electrical parameters including Active Energy (kWh/ MWh), Reactive Energy (kVArh/MVArh), Apparent Energy (kVAh/ MVAh) etc. 9.Independent flexible PVC pipes for CT wiring and PT wiring of appropriate size from HT compartment to meter compartment. 10.Pedestal made out of G.I Channel of size 75 x 40 mm or angle iron of size (65 x 65 x 5) mm, duly painted as per site requirement for mounting of metering panel including concrete foundation wherever required including cost of nuts and bolts complete in all respects as per standards.

3 Core 11 kV Aluminium cable XLPE armoured 35 mm² including cost of clamp for its fixing where ever required. complete in all respects as per standards.

Cable termination kits suitable for 3 x 35 mm² XLPE Cable (Indoor/Outdoor)

Earthing by way of 40 mm 2.5 mtr long GI Pipe. Job includes , excavation, enhancement material and Main Hole Chamber (500x450x600)mm with frame and cover.

1. 33kV CT/PT Combined Unit, 3-phase, 50 Hz, ONAN cooled, outdoor type. The combined unit, CTs and PTs shall be as per below specifications. The CT ratio shall be as under: I. 125/5 for 4 MVA, 5 MVA, 6.3 MVA, 33/11kV Transformers IV. 200/5 for 10MVA, 33/11 kV Transformers The rated burden of CT shall be 7VA The PT shall be 33 kV/110 volts / √3, Three phase PT with rated burden 20VA per phase with proper colour coded identification. PTs shall be of uniform insulating and One minute power frequency dry withstand voltage 70kV. 2.Metering cubicle for 3phase 4 wire metering system suitable for 3 phase, HT, tri-vector meter with sealing and locking facility made of MS Sheet steel thickness not less than 2mm duly power coat painted suitable for indoor as well as outdoor as per the site requirement. The cubicle shall be painted through 7-tank process. The External dimensions should be adequate. Provided with synthetic or semi synthetic gasket firmly glued to the sufrace, Dust, weather and Vermin proof and shall comply degree of protection IP 65 both the chambers having one sided hinged door arrangments. The panel shall be provided with two No G.I channels of size 100 x 50 mm on the front and rear sides duly welded and 4 No of lifting hooks. It should be possible to take meter reading manually, through CMRI and computer without opening dooriIncluding supply and fixing of 75mm GI pipe between CT/PT combined unit and metering cubicle for CT/PT wiring to tri-vector meter. 3. G.I Channels for mounting CT /PT Combined Units with nuts and bolts of size (100 x 50 x 6) mm. 4. 3Ph4 Wire HT CT/PT operated Fully static Smart Tri-Vector Energymeters DLMS Compliant Category 'C' with RS232 port . 33kV/√3 /110V/√3, Ph-N (3P, 4W) meters for measurement of different electrical parameters including Active Energy (kWh/ MWh), Reactive Energy (kVArh/MVArh), Apparent Energy (kVAh/ MVAh) etc. 5.PVC Copper wire flexible multi-strand of required size for secondary connections for CT wiring the minimum wire size shall be 4 mm² (RYB) and for PT wiring minimum wire size shall be 2.5 mm² (RYB). 6.Copper Lugs preferably ring type duly crimped for termination of wires and tapes . 7.ACSR Jumpers with hardware fittings like ACSR to CT/PT unit bush clamp, other hardwares as per site requirement complete in all respects as per standards.

Earthing by way of 40 mm 2.5 mtr long GI Pipe. Job includes , excavation, enhancement material and Main Hole Chamber (500x450x600)mm with frame and cover.

NOTE: 1.The rates quoted by the bidder for all the items shall be inclusive of GST/freight/insurance/storage/installation/testing and any other charges FOR Providing of 11kV and 33 kV CT and PT operated HT metering in 33 kV and 11 kV sub stations at STC Humhama, Srinagar J&K under the jurisdiction of ED Budgam, KPDCL.

A One Engineers (BID ID -2207816)

m/s SHUJAT ELECTRONICS MECHANICALS AND SUPPLIERS (BID ID -2212346)