Design Supply Installation of 12.5 MVA Power Transformer and associated works in 66 KV main receiving station MRS at IISc Bangalore

Amount

Cat (A) -Items to be supply and installation

Civil Works Demolishing RCC work manually/by mechanical means including stacking of steel bars and disposal of un serviceable materials within 50 metres lead and as per directions of engineer-in-charge

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Providing and laying in position machine batched and machine mixed design Mix M25 grade cement concrete for reinforced cement concrete work ,using cement content as per approved design mix,including pumping of concrete to site of laying but excluding the cost of centering ,shuttering finishing and reinforcement ,including admixtures in recommended proportions as per IS 9103 to accelerate,retard setting of concrete ,improve workability without impairing strength and durability as per directions of Engineer in charge all works upto plinth level Concrete of M25 grade with minimum cement content of 330 kg /cum

Centering and shuttering including strutting, propping etc. and removal ofform for Foundations, footings, bases of columns, etc. for mass concrete

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in_x005f?charge. All kinds of soil

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level.Thermo-Mechanically Treated bars of grade Fe-500D or more.

supply & fixing 90lbs/Yard rails for the transformer foundation

Supplying fabricating and erecting Galvanised steel structures

Brick work with common burnt clay machine moulded perforated bricks of class designation 12.5 conforming to IS: 2222 in superstructure above plinth level up to floor five level in cement mortar 1:6 (1 cement : 6 coarse sand) :With F.P.S.(non modular) bricks

18 mm cement plaster in two coats under layer 12 mm thick cement plaster 1:5 (1 cement : 5 coarse sand) and a top layer 6 mm thick cement plaster 1:3 (1 cement : 3 coarse sand) finished rough with sponge.

Providing epoxy painting to plastered / un plastered surface of concrete / brick work

Providing and filling 40 mm downgraded coarse aggregates in the transformer foundation and in the substation area

Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 metres lead.

Backfilling

Supply, Installation, Testing & Commissioning of the following equipment(s) as per specifications, drawings and data sheets Electrical Works SwitchYard Equipment: 66kV Three pole Double break, 1250A, 31.5kA for 3 sec Motor operated Isolator with one hand operated Earth Switch along with equipment mounting structure as per specification

66kV Class Triple pole, 1250A, 31.5kA for 3 sec Outdoor SF6 Circuit Breaker along with equipment mounting structure as per specification

66kV, 3 Core CTs for metering and protection along with equipment mounting structure as per specification

60kV, Station Class Lightning Arrestors along with equipment mounting structure as per specification

66kV Solid Core bus post Insulator along with equipment mounting structure as per specification

66kV Transfermer bay Control And Relay Panel

66kV TR#1 Bay SCADA Accessories and Integration

66kV TR#1 Bay SCADA Software and DataBase Upgradation

Outdoor Bay Marshalling Box

Substation Accessories 50mm (2.0") IPS SCH-40 Al tube for bay bus

63mm (2.5") IPS SCH-40 Al tube for main bus

Clamps and Connectors suitable for 31.5kA for above Al tubes

Clamps and connectors for AI TUBES connection Aluminium alloy terminal connector for 66kV CT terminals suitable for 63 mm Al Tube with HORIZONTAL TAKE OFF Fixed Type connector for CT & 63 mm Al Tube

Aluminium flexible terminal connector for 66kV CT terminals suitable for 63mm Al Tube with HORIZONTAL TAKE OFF Flexible Type connector for CT & 63mm Al Tube

Aluminium alloy terminal connector for 66kV LA terminals(PAD) with VERTICAL TAKE OFF Fixed Type connector for LA -T Type Clamp 50mm

Aluminium alloy terminal connector for 66kV Transformer Bushing Expansion Type connector for Bushing Clamp Suitable for 50mm

Aluminium alloy terminal connector for 66kV Isolator terminals(PAD) WITH HORIZONTAL TAKE OFF Fixed Type connector for Isolator & 63mm Al Tube

Flexible Type connector for Isolator & 63mm Al Tube

Aluminium alloy terminal connector for 66kV Circuit Breaker terminals(PAD) WITH HORIZONTAL TAKE OFF Fixed Type connector for circuit breaker & 63mm Al Tube

Flexible Type connector for circuit breaker & 63mm Al Tube

2.5" IPS SCH-40 "V" Arm & connectors for supporting Main Bus (2.5") to 2.0" IPS SCH-40 Bay Bus

HV POWER CABLES 11kV Earthed Grade (E), Stranded Aluminium conductor, XLPE insulated, Strip wire armoured, extruded PVC inner and outer sheathed cables laid in cable trench / Cable tray / directly buried with necessary clamps and hardware, cable tags, ferrule numbers etc. and conforming to enclosed specification. 3Rx3C x 240 sq mm

Supply and installation of indoor heat shrinkable cable termination kit including double compression brass cable glands, crimping type tinned copper lugs, GS armour binding wires, earth tags, pig tails with lugs, for 11kV Earthed Grade, armoured XLPE insulated Power Cables of following sizes: TR#1 3Rx3C x 240 sq mm, Al, XLPE

Supply and Installation of the following Cables as per specification and drawings. (DG Extension) 2Rx3C x 300 sq mm, Al, XLPE

Supply and installation of indoor heat shrinkable cable termination kit including double compression brass cable glands, crimping type tinned copper lugs, GS armour binding wires, earth tags, pig tails with lugs, for 11kV Earthed Grade, armoured XLPE insulated Power Cables of following sizes: 2Rx3C x 300 sq mm, Al, XLPE

MV POWER CABLES Supply and Installation of the following Cables as per specification and drawings. 1.1V Grade, XLPE insulated, PVC innersheath, overall PVC outersheathed, Armoured cables laid in cable trays / buried in trench with necessary clamps and hardware, cable tags, ferrule numbers etc. and conforming to enclosed specification. 3C X 2.5 Sq.mm Cu, Armoured cable

3C X 6 Sq.mm Cu, Armoured cable

4C X 4 Sq.mm Cu, Armoured cable

4C X 25 Sq.mm Cu, Armoured cable

Supply and installation of Cable termination accessories including double compression brass cable glands, crimping type tinned copper lugs, bimetallic strips, GS armour binding wires, earth tags, pig tails with lugs, for 1.1kV grade, armoured XLPE insulated Power Cables of following sizes: 3C X 2.5 sq.mm Cu, Armoured cable

3C X 6 sq.mm Cu, Armoured cable

4C X 4 sq.mm Cu, Armoured cable

4C X 25 sq.mm Cu, Armoured cable

MV CONTROL CABLES Supply and Installation of the following Cables as per specification and drawings. 1.1V Grade, Stranded Copper conductor, PVC insulated, Steel Wire armoured, overall FRLS PVC outersheathed control cables laid in cable trays / wire duct with necessary clamps and hardware, cable tags, ferrule numbers etc. and conforming to enclosed specification. 3C X 2.5 sq.mm Cu. cable

5C X 2.5 sq.mm Cu. cable

5C X 4 sq.mm Cu. cable

7C X 2.5 sq.mm Cu. cable

12C X 2.5 sq.mm Cu. cable

19C X 2.5 sq.mm Cu. cable

24C X 2.5 sq.mm Cu. cable

Supply and installation of Cable termination accessories including double compression brass cable glands, crimping type tinned copper lugs, bimetallic strips, GS armour binding wires, earth tags, pig tails with lugs, for 1.1kV grade, armoured PVC insulated Control Cables of following sizes: 3C X 2.5 sq.mm Cu. cable

5C X 2.5 sq.mm Cu. cable

5C X 4 sq.mm Cu. cable

7C X 2.5 sq.mm Cu. cable

12C X 2.5 sq.mm Cu. cable

19C X 2.5 sq.mm Cu. cable

24C X 2.5 sq.mm Cu. cable

EARTHING Supply, Installation / laying and termination of the following sizes of earth flats, mats and wires, directly buried / laid in cable trays / drawn through pipe sleeves / run along structures as per specifications and drawings. All joints in the run of conductor shall be welded/ brazed/ fastened/ riveted. 75 x 12 mm GI strip for switchyard buried earth grid

75 x 10 mm GI strip for substation riser to equipment and structural earthing.

50 x 8 mm Cu strip for Transformer neutral earthing.

25 x 6 mm GI Strip for fence earthing.

1C x 6 Sq.mm Cu Flexible Cable (Yellow/green) for DB's/Junction Box/Marshalling Kiosk

Auxiliary earth mat with Copper Mesh size of 150mm x 150mm for isolators (Overall-1200mm x 1200mm)

Supply and erection of Treated Earth pits complete with 100 dia 13 thick Cast Iron Pipe 2.5m long with disconnecting links, chamber, inspection cover, civil works, etc., as per specifications and drawing, and including excavation , salt, charcoal.

OIL FILLED POWER TRANSFORMER Supply, Installation, Testing & Commissioning of the following equipment(s) as per specifications, drawings and data sheets 12.5MVA, 66/11.6kV, Power Transformer, Z=8.35%, with OLTC +5% to -15%, RTCC, first filling of oil and 10% spare oil as per specifications and Data Sheets

Nitrogen Injected Fire Protection System complete with local control box, remote control panel, signal box, heat detectors and all other accessories as per specification suitable for the above transformer

Oill filtration at the time of installation, testing and commissioning of transformer with MAIN TANK + OLTC.

Oil Sample testing at the time of installation, testing and commissioning of transformer with OLTC.

Essential Spares

HV SWITCHGEAR Supply, Installation, Testing & Commissioning of the following equipment(s) as per specifications, drawings and data sheets 11kV TR#1 Incomer Panel Retrofit (Cable Box Adopter include Bus Bar Extension + New 11kV CT 800-400/1-1-1A -3Nos's)

Existing DG incomer Interlock Modification (Interlock Between Buscoupler, DG Incomer, Transformer Incomer)/ Adapter Panel for MCVCB

Proposed DG Panel - For Outgoing ( DG Room )

Proposed DG Panel - For Incoming (11kV Switch Gear Room)

Cable side earthing truck with single phase PT, lamp and buzzer

Bus earthing truck with single phase PT, lamp and buzzer

CB Transport trolley

Supply Installation of Safety items CO2 Fire Extinguishers - 4.5 kg

Fire bucket with sand

Fire bucket Steel sand ( For 3 buckets)

Rubber hand gloves,Branded, Class4

Shock treatment chart, duly framed

Danger boards as per IS 2551 (150 x 150mm)

First aid kits

Rubber Mats - 1500 mm (W) x 1000 mm (L) x 12 mm (T)

Cat (B) - Buy Back Items

66kV Three pole Double break Isolator with one hand operated Earth Switch-supply

66kV Class Triple pole Circuit Breaker

66kV, 3 Core CTs for metering and protection

Outdoor Junction Box for CT

60kV, Station Class Lightning Arrestors

5MVA, 66/11.6kV, Power Transformer, Z=7.04%, with OLTC +5% to -15%

Polyphase Engineering Pvt Ltd (BID ID -3151788)

Suvarna Infrateck (BID ID -3149211)

HITECH ERECTORS PVT. LTD. (BID ID -3149990)

Maverik Facility Management PVt. Ltd. (BID ID -3150722)

ETA ENGINEERS PVT LTD (BID ID -3149286)