Supply and Installation of 400 kVA Transformer Supply, Erection, Installation, Testing and Commissioning and allied works

Amount

400 kVA TRANSFORMER(USS) INSTALLATION. (TRANSFORMER shall be supplied by KEL at site)

Unitised Substation- outdoor type 400 kVA 11 kV USS (dry type):- Design, Fabrication, Supply outdoor type Unitized substation enclosure consisting of HT compartment with 11kV load break switch, Transformer compartment with 400 kVA, 11kV/433V 3Ph 50Hz vector Dyn-11, cast resin type, transformer with IP54 enclosure, winding temparature alarm and trip, necessary louvers, all standard fittings and accessories, LV chambers suitable for termination of necessory power and control cabling for alarm, tripping & indication, all required internal cabling etc complete and as per specifications in all respects.

HT compartment:- 11 kV, 26kA for 3 seconds, 630A LBS. 630A continuously rated Al busbar. Seal off Bushing, Shunt Trip coil, Space Heater with thermostat, padlocking for open, close, earth, test position.

Transformer Compartment(Dry Type):- 400 kVA 11kV/433V 3 Ph 50 Hz, Dry Type Vector Dyn-11 transformer copper wound, CRGO laminated, Class F insulation, indoor distribution Transformer with air natural cooling. The transformer shall have Delta on HV side and Star on LV side with off load tap changer range:+5% to-10% in steps of 2.5%

LT chamber:- Provision for connecting & terminating LT cables.

Charge for Unloading transformer at site using crane.

Leading (Approx.100 mtr), Lifting, Aligning and Fixing of Transfomer Set in Foundation.

Construction of transformer plinth by excavation in soil mechanically/ manually including getting out the excavated soil and disposal of surplus excavated soil, providing solid Block masonry using pre cast blocks above ground level upto 30 cm and cement palstering, back filling soil, consolidating soil by ramming and watering inside the plinth, including providing and laying in position cement concrete of specified grade above the plinth as directed. The dimension of the plinth shall be Suitable to 400 kVA USS.

Supply, conveyance and fixing suitable outdoor kiosk for HT TOD meter near double pole structure with angle iron support including supply and fixing test terminal box in kiosk.

Supply, conveyance and installation of 3 pole 4 wire 11kV/110V, 5A, 0.2S accuracy class HT TOD meter in existing kiosk.

Supply, conveyance and installation of out door type CT/PT unit specification of current transformers 3 nos -/5, 10VA, CL: 0.2S and specification of potential transformer ratio:11kV/110V, 25VA, CL:0.2, work include erecting CT & PT unit on the existing double pole structure.

Installation, testing and commissioning of Unitised substation outdoor type 400kVA, 11kV/433V,3 phase, 50Hz, cast resin Distribution Transformer.

MAIN SWITCH BOARD

Supply, fabrication, installation of cubical panel board of dust and vermin tight proof, indoor, front opening type, cable bottom entry, mounted on M.S angler stand using nut and bolt suitable for operation on 3 Ph, 415V, 50 Hz AC system with busbars, including internal wiring with suitale size FRLSH wires/cable, interconnection as per technical specification.

INCOMER

630A 4 pole, Microprocessor type MCCB - 1 no. having isolation duty with 3 Nos. O/C & 1 E/F releases, including rotary handle, spreader link extension etc.

OUTGOING

400A TPN SFU - 1 nos., (oxygen plant) 250A TPN SFU - 3 nos, (160 kVA DG,APFC, spare 1no.) 160A TPN SFU - 2 nos. (82.5 kVA DG, spare 1no.)

1 set RYB indication lamps with control MCBs, 3 Nos. CT, 1 No. digital multifunction meter measuring V-A-F with control MCBs

Earth fault relay CDG 11and Neutral CT 5P10.

APFC PANEL (80 kVAR)

Supply, fabrication, installation, testing and commissonning of In-door type electrical APFC Switch Board Panel suitable for 415volts 3ph, 50Hz AC system with the required i.e. APFC Relay, timer, Heavy duty Power capacitor Contactors, CT/PT,Aux.contactor,Indicationlamps,Push button and all other necessary equipment switchgear and accessories and having suitable enclosure compartmentalized, totally enclosed free standing, Floor/wall mounted type, suitable bus bar,earthing arragement, suitable for operation from front side and ready for installation at site.

i)Incomer 250A isolator. ii)20Kvar capacitor Feeder- 1 Nos. iii)10Kvar capacitor Feeder- 4 Nos. iv) 5Kvar capacitor feeder- 4 Nos.

Cable Laying.

Excavation for cable trench in soil mechanically/ manually including cutting of concrete floor, bitumenous road, getting out the excavated soil and disposal of surplus excavated soil,brick protective covering, refilling, making good the damages using cement plastering etc. as directed complete.

Supply, fabrication and installation of vertical and horizontal type cable tray and supports using M.S angles and flates of adequate size including cutting, welding, fixing on wall and painting.

Supply and laying 90 mm dia DWC pipe direct in trench for HT cable protection.

Supply and laying of PVC insulated and PVC sheathed / XLPE 11 kV grade armoured aluminium cables of the following size in exsisting trenches, trays, pulling through pipes etc. as required.

3CX185 Sq mm (from KSEB structure to HT side of transformer)

Supply Indoor/Outdoor High Tension Termination Kit for 3C x 185 Sq mm XLPE cable and provide cable termination.

Supply and Laying of one number PVC insulated and PVC sheathed power cable of 1.1 KV grade of following size in exsisting trenches, trays, pulling through pipes etc. as required.

2RX3.5CX400 Sq mm AYFY(LT side of transformer to MSB)

Termination of above UG cable using Brass Glands and Aluminium sockets.

3.5CX185 Sq mm AYFY(MSB to 160 kVA DG Change Over).

Termination of above UG cable using Brass Glands and Aluminium sockets.

3.5CX95 Sq mm AYFY( MSB to 82.5 kVA ATS panel).

Termination of above UG cable using Brass Glands and Aluminium sockets.

3.5CX150 Sq mm AYFY( Main Panel to APFC panel).

Termination of above UG cable using Brass Glands and Aluminium sockets.

Supply and Laying 2CX1.5 Sq mm copper UG cable (for Earth fault relay, Neutral CT, Transformer emergency power off)

Termination of above UG cable.

Supply & laying of 2.5 sq mm X 12 core Cu UG cable from CTPT to energy meter.

Termination of above UG cable.

Supply, conveyance, installation, testing and commissioning of 250A, 4P onload change over in a suitable cubical metal box of floor/wall mounting, dust and vermin proof with front opening type, top & bottom cable entry, hinged door, necessary cut-outs for indication lamps, alarm etc.

Supply and fixing KSEB indication alarm.

Light Wiring in Electrical Room

Single Control light point wiring with 6A switch, plate ceiling rose.

Idepedent plug point with 6 A, 5 pin plug socket controlled by 6 A switch

Supply & installation of light fittings of 1200 mm 1X20W LED Lamp with box type fixture.

Supplying and drawing following sizes of FRLS PVC insulated copper conductor, single core cable in the existing surface / recessed steel/ PVC conduit as required. 3 x 2.5 sq. mm

Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/ recess including cutting the wall and making good the same in case of recessed conduit as required.20 mm.

Supplying and fixing following size/ modules, GI box/ open type PVC box excluding modular base & cover plate for modular switches in recess etc. as required.

3 Module (100mmX75mm)

6 Module (125mmX125mm)

Supplying and fixing following size/ modules modular base & cover plate for modular switches in recess etc. as required.

3 Module (100mmX75mm)

6 Module (125mmX125mm)

Supplying and fixing 8way SPN DB - single pole and neutral, sheet steel, MCB distribution board, 240 V, on surface/ recess, complete with tinned copper bus bar, neutral bus bar, earth bar, din bar, interconnections, powder painted including earthing etc. as required. (including MCBs and RCBO)

Civil Work in Transformer & Panel Room.(L 6.8XW 5.5XH 3)

Clearing grass and removal of the excess soil, rocks,waste materials etc. from the surface including levelling of the soil.

Demolishing existing stone rubble masonry of basement by mechanical means/ by manually and disposal of unserviceable materials.

Provide stone rubble masonry using hard stone and cement mortar of height 1 mtr above and below ground level (for foundation & basement).

Providing and laying position cement concrete of specified grade above basement as directed.

Filling available earth consolidating soil by ramming and watering as required.

Providing solid block masonry using precast solid blocks for boundry wall and separation wall of height 1.5 mtr above basement.

Plastering with cement mortar for inside and outside of the boundry wall and separation wall.

Providing and laying position cement concrete of specified grade inside the floor.

Painting the wall with one coat emulsion paint.

Providing fencing above the wall upto a height of 1.5 mtr including all necessary accessories and painting.

Providing and fixing 2 nos. 1.5 mtr width MS door with lock and key facility.

Supply and fixing trafford sheet roof including frame work using GI pipe, cutting, welding, bolting, erecting in position, providing roof rain gutters, finishing the section with single coat epoxy primer and single coat paint as directed complete.

Construction of cable trench inside the room by excavation in soil mechanically/ manually including getting out the excavated soil and disposal of surplus excavated soil, providing solid Block masonry using pre cast blocks upto a depth of 75 cm and width upto 50cm including cement palstering, preparation of soil bed for laying cable etc. as required complete.

Supply and laying chequered plate covering above the trench as required.

Supply, conveyance and providing plate earthing minimum 3 nos. as per IS 3043 with 1200x1200x12 mm CI earth plate, including excavation and refilling with coal, salt etc. inclusive of all connected civil works.

Supply following size of GI flats/Copper wires for earthing of transformer, DG set, Panel board etc. and interconnection of earth pits as per technical specification. Earth strip/wires to be taken through GI pipes/cable trays/Hume pipes/built in trunches/soil etc. wherever necessary. Rate inclusive of connected civil works, necessary tinning, providing sockets and end termination of copper strips/wires with all accessories required for the complete work.

32X6 mm GI strip.

25X3 Copper strip.

Supply and fixing 25X3 Copper earth bus.

10 SWG Copper wire.

SAFETY EQUIPMENTS

Supply and providing fire retardent, electrical insulating rubber mat of suitable thickness as required. (5 nos.)

Supply and installation of fire extinguisher.(3 nos)

Supply and provide 2nos. fire bucket with stand.

Supply HT gloves.(2 no.)

Supply and Fixing shock treatment chart (1 no.)

Supply and fixing danger plate(2 nos.).

Supply and fixing HT cable route marker (10 nos.).

Supply and installation of emergency power off switch with breakable glass box for transformer.

DOCUMENTATION

Preparation of electrical drawing for getting approval from Electrical Inspectorate and KSEB.

To and Fro Conveyance and testing fee for TOD meter, CT:PT unit at TMR division

Testing fee for CTs coil, Neutral CTs, Earth fault relays and Soil resistivity test, Scrutiny, Inspection fee etc. to be remitted to Electrical Inspectorate.

Note: KSEB Fee should be paid by client ( caution deposit, Administrative over head charge, processing fee etc.)

YOOSAF K A