Installation and commissioning of CT, PT in 110kV Substation as part of open access, FACT-UC.

Disconnection of 110kV incoming ACSR line (WOLF (30/7 x 2.59 mm Dia)) from tower to gantry, ACSR drop conductors from 110kV incoming transmission line to lightning arrestor and Isolator at both ends. The disconnected lines are to be reconnected after completion of erection works .Connections of all three phases are to be shifted from tower to the gantry by aprox. 5m to left for bay 1 during reconnection to ensure proper clearances between phases in consensus with KSEBL. Necessary hooking points are to be welded to the gantry as per requirement, by the contractor. The welded portions are to be painted after application of primer. Supply of necessary fasteners, T/normal joints, suitable terminal connectors are under the scope of the vendor. Note : This is an optional item, which shall be carried out with prior approval from FACT

Disconnection and removal of 110kV Current Transformer(CT): The scope of work includes disconnection of ACSR conductor jumpers / copper pipe rods from 110kV incoming line isolator & incomer side of CB, control cables, earth strips from existing CT and removal of the existing CT. The dismantled CT shall be transported to a location as directed by the Engineer-in-charge.

Disconnection and removal (dismantle if necessary) of existing motorized 110kV line isolators (FI-1 & 2) including base channel frame (if required) without damaging the parts. Scope of work also includes disconnection and removal of motor control unit and associated control/power cable.Note : Utmost care has to be taken while dismantling the isolator to maintain proper alignment during re-installation as specified elsewhere in the tender.

Modification of existing 110kV CT mounting structures (DRG NO: FACT-UC-110 KV-CT-STRUCT-02) to house new 3 nos. CT. The scope of work includes structural fabrication of necessary supports for mounting the CTs as per the attached drawing using GI angles/ channels, structural fabrication/ fabrication of additional pieces/ plates required for strengthening the structure,levelling and aligning, fixing the supports to the structure and painting the entire structure. Existing foundation shall be utilized and fabrication shall be done accordingly to accomodate CT over the common structure. Bolt holes for mounting shall also be drilled on horizontal supports. The scope of work also includes thorough cleaning of the mounting structures and removal of rust, application of 2 coats of metal primer and painting the surface with two coats of Aluminium paint. Neccessary clearances as per Drg. No.FACT-UC-110 KV-CT-STRUCT-02 is to be maintained. Total height of the structure shall be preferably 2 meter +/-10%. GAD of CT is attached as per drg. no 411978598 CT1 GA/R0

Modification of existing 110kV line isolator structures (DRG NO:FACT-UC-110 KV-ISLTR-STRUCT-03 ) to house 3 nos. new PT. The scope of work includes structural fabrication of necessary supports for mounting the PTs as per the attached drawing using GI angles/ channels, structural fabrication/ fabrication of additional pieces/ plates required for strengthening the structure,levelling and aligning , fixing the supports to the structure and painting the structure. Existing foundation shall be utilized and fabrication shall be done accordingly to accomodate PT over the common structure. Bolt holes for mounting shall also be drilled on horizontal supports. The scope of work also includes thorough cleaning of the mounting structures and removal of rust, application of 2 coats of metal primer and painting the surface with two coats of Aluminium paint. Neccessary clearances as per Drg. No.FACT-UC-110 KV-ISLTR-STRUCT-03 is to be maintained. Total height of the structure shall be preferably 2 mtr +/-10%. GAD of PT is attached as per drg. no 110PTGA144201

Construction of concrete footing as per existing dimensions (Dwg no FACT-UC-110 KV-FDN-POLE-01 attached)with foundation bolts and fabrication of new structure to install the motorized 110kV line isolators (FI-1 & 2). 6 nos. of footings are to be constructed for each bay. The scope of work also includes fabrication of necessary supports for mounting the isolator, structural fabrication/ fabrication of additional pieces/plates,levelling and aligning and fixing the supports to the isolator structure and painting the structure.

Construction of concrete footing as per existing dimensions (Dwg no FACT-UC-110 KV-FDN-POLE-01 attached) with foundation bolts and fabrication of new structure to install the 110kV lightning arrestors (LA-1 & 2). 3 nos. of footings are to be constructed for each bay.The scope of work also includes fabrication of necessary supports for mounting the arrestor, structural fabrication/ fabrication of additional pieces/plates,levelling and aligning, fixing the supports and painting the structure.

Erection and commissioning of new 110KV CT (CGL make): The scope of work includes transportation of new CTs from FACT-UC stored location, erection of new CT on the modified structure, reconnection of ACSR jumpers / copper pipe rods / aluminium pipe rods to the CT terminal, connection and termination of new control cables, earth strips connection etc. , testing and commissioning of CTs as per manufacturer's guidelines/ relevant IS standards and testing and commissioning assistance for M/s KSEBL.GAD dwg no 411978598 CT1 GA/R0 attached

Erection and commissioning of new 110KV PT (Suman make): The scope of work includes transportation of new PTs from FACT-UC stored location, erection of new PT on the modified existing structure as per drg no. FACT-UC-110 KV-ISLTR-STRUCT-03, reconnection of ACSR jumpers / copper pipe rods / aluminium pipe rods to the PT terminal, connection and termination of new control cables, earth strips connection etc. , testing and commissioning of PTs as per manufacturer's guidelines/ relevant IS standards and testing and commissioning assistance for M/s KSEBL. GAD dwg no 110PTGA144201 is attached

Re-assembling and re-installing of dismantled 110KV motorized line isolators (FI-1 & 2) over the newly fabricated structure as per drg no.FACT-UC-110 KV-ISLTR-STRUCT-04: The scope of work includes assembling and erection of each set of line isolators including control module on the new structure, reconnection of ACSR jumpers / copper pipe rods / aluminium pipe rods to the terminals, connection and termination of control cables, earth strips connection etc. and commissioning. Fasteners, clamps etc. required if any, is under the scope of the contractor. Note : Utmost care to be taken while assembling the isolator to maintain proper alignment during re-installation .

Disconnection, removal of 110kV Lightning Arrestors(LA-1 & 2) from existing location and Re-installing over the newly fabricated structure without damaging the parts as per Drg. No.FACT-UC-110 KV-LA-STRUCT-01. The scope of work includes removal of LA from existing structure, removal of existing structure, erection of relocated LAs on the newly constructed structure, reconnection of ACSR jumpers / copper pipe rods/Aluminium pipe rods to the LA terminal, connection of earth strips etc.

Supply of 3Cx2.5 sq.mm. armoured copper control cable. The cable shall be 650/1100 Volt grade, PVC/XLPE Insulated, PVC sheathed (FRLS), galvanised round / flat steel armoured cable conforming to IS 1554/ Part I of 1988 or IS 7098 Part I, with latest amendments and with cable length & ISI marking, to be marked on every 5 meters on the outer sheath of the cable.

Laying of control cables from RTU Panel to different locations in 110kV Yard and from ABT meter to newly installed CT & PTs: Scope of work includes laying of armoured copper control cables of size up to 5x2.5sq.mm. through existing concrete trenches/ cable trays as per the instructions given by engineer in charge. Work also involves removal of existing concrete slabs and replacing it back in the original position after laying of cable. Cables laid through cable trays shall be tied firmly using nylon ropes at an interval not greater than 0.5 meter.

Supply of 5Cx2.5 sq.mm. armoured copper control cable. The cable shall be 650/1100 Volt grade, PVC/XLPE Insulated, PVC sheathed (FRLS), galvanised round / flat steel armoured cable conforming to IS 1554/ Part I of 1988 or IS 7098 Part I, with latest amendments and with cable length & ISI marking, to be marked on every 5 meters on the outer sheath of the cable.

Supply, configuration, programming, calibration, testing and commissioning of ABT meter (to be used as main/check meter) conforming to IS 14697. The meters shall be fixed in the existing cubicle. CT Ratio:80/1 A,PT ratio:110KV/110,Aux supply:110 V DC /230V AC

Supply of 3" IPS Aluminium tube of size 75mm as outer diameter made of rigid aluminium alloy round tube bus bar schedule 40 with internal dia of 62.71 mm.

Supply of copper conductor with size equivalent to WOLF ( 30/7 x 2.59 mm Dia

Supply of 65 x 8mm GI Flat

Supply of all materials for the construction of plate electrode earth pits confirming to latest IS/IEC, with CI plate of 1200 x 1200 x 12 mm, class B GI pipe of 50 mm dia and 3m long provided with suitably drilled holes at regular intervals, funnel with wire mesh, GI strip of 50 x 12 mm, CI Plate cover for earth pit of size 1100 x 500 x 10 mm with suitable handle for lifting and all other accessories required for the completion of work. The scope shall also include supply of all accessories such as brick, sand, rubble, cement, wood charcoal and salt (or earthing compound) , GI nuts & bolts, washers, bitumen compound etc as required for construction of earth pit as per the attached drg no: FACT-UC-SS-EPIT-001

Construction, Erection, Testing, Commissioning and handing over of new earth pits with plate electrode in yard area confirming to latest IS/IEC. Work shall include all civil works required for the earth pits such as excavation for pit, placing of electrode with GI pipe and funnel, dewatering the excavated pit if required, filling the pit with charcoal mixture, brickwork / PCC, plastering of brickwork on both sides, fixing of CI cover with frame for the earth pit etc as per the drawing attached. The pit shall be filled with alternate layers of charcoal and salt/sand (or earthing compound). The earth connection shall be placed in a brick masonry chamber of size 1000 x 500 x 600 mm with embedded 100mm dia PVC conduit openings on all four sides as per attached drg no: FACT-UC-SS-EPIT-001.Water line from nearest point shall be tapped and provided to the new earth pit.

Supply of fabricated hot dipped galvanised structural steel in built up sections as per drawings attached for the above mentioned items at site. Hot dipped galvanizing shall be as per IS 4759. A sample of hot dipped galvanized structural shall be subjected to inspection as per IS, if insisted by FACT.

Fabrication of cable trays/supports of different dimensions using M/S angles, channels, flats etc. of different sizes and erecting them by welding/ grouting to steel structures/ pillars/ walls etc. as per the instruction of Engineer in charge. Supply of MS items are under the scope of the contractor. All other items required for the work such as welding set with welding rods, gas cutting sets with gas, cleaning brush, painting brush, cement and sand for grouting work etc. shall be arranged by the Contractor. The Contractor shall also arrange for application of one coat of epoxy primer followed by two coats of epoxy finish paint on the fabricated trays, after cleaning of the trays (the rate quoted shall include the rate for supply and application of required quantity of primer, thinner and finish paint).

VIJAYA ELE TECHS PRIVATE LTD.