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 1. ACSR conductor jumpers / copper pipe rods from 110kV incoming line isolator & incomer side of CB 2. Control cables/ CT secondary cables 3. Earth strips from existing CT 4. Removal of foundation bolts, leading and transporting of the CT to a safe location as directed.

Disconnection and removal (dis-assemble if necessary) of existing motorized 110kV, 3 phase line isolators (FI-1 / FI-2) including base channel frame. Scope of work 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 /FI- 2). Six numbers 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 /LA- 2). Three numbers 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 : 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 secondary 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.

Re-assembling and re-installing of dismantled 110KV motorized line isolators (FI-1/FI-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 /LA-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, 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 bare copper conductor stranded with size 95 sq.mm(19 stranded cable with OD 12.3 mm )Note : This is an optional item, which shall be supplied with prior approval from FACT

Supply of 65 x 8mm GI Flat

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.

IMPERIAL ENGINEERING COMPANY

VIJAYA ELE TECHS PRIVATE LTD.