Supply and Installation 250kVA Outdoor USS and Allied Electrical works for HT substation

Amount

RMU INSTALLATION

Supply of 11 KV, 630A, 20KA, Motor Operated Compact, Outdoor, Extensible, Non Drawout Type, Ring Main Unit, ABB Make, Type +CCV+.

Charges for erection of CCV+ RMU and RCC 1:2:4, Foundation, including charges for obtaining necessary approvals for road cutting and cable laying (Corporation, PTCC KWA and Police).

Charges for Open trench method, by making open trench on the side of the road at 1.2mtrs depth and 0.4mtrs width. spreading the bottom of the trench, forming soil, bed of 10cm, with excavated riddled soil, filling both side of cable up to 10cm, after laying the cable and 10cm on the top of the cable, covering the same by providing RCC slab of size 50x25x5cm with engraved as "KSEB 11KV CABLE-DANGER" and back filling the trench completely as per KSEBL specifications.

Supply,laying & commissioning of XLPE insulated PVC sheathed 11 kV grade armoured aluminium cables of the following size through existing trench as directed complete.

3CX300 Sq mm (from KSEB to RMU)

Supply, fabrication, erection of vertical cable support fabricated out of MS angles (ISA) and MS flates with sufficient width and spacing between successive cross members supported at adequate spacing. The cable supports shall be painted with two cots of zinc chromate primer and enamel paint.

Supply Indoor/Outdoor Termination Kit for 3 x 300 Sq mm XLPE cable and provide cable termination.

TRANSFORMER(USS) SUPPLY & INSTALLATION

Unitised Substation- outdoor type 250 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 250 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. CT ratio **/5A, 15VA,CL0.2S:- 3 nos, PT ratio:11kV/110V, 25VA, Cl:0.2,Provision for TOD meter, padlocking for open, close, earth, test position

Transformer Compartment(Dry Type):- 250 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:-should be suitable for terminating & connecting LT cables,

Charge for Freight & Unloading transformer.

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

Installation, testing and commissioning of Unitised substation outdoor type 250kVA, 11kV/433V,3 phase, 50Hz, cast resin Distribution Transforme on the existing Plinth. The work include leading, alignment checking of the transformer.

Supply,laying & commissioning of XLPE insulated PVC sheathed 11 kV grade armoured aluminium cables of the following size through existing trench as directed complete.(trech work not in our scope)

3CX300 Sq mm(from RMU to HT side of transformer)

Supply Indoor/Outdoor Termination Kit for 3 x 300 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 by excavation cable trench, including getting out the excavated soil, providing brick protection to cables and refilling trench as required.

2run X 3.5CX185 Sq mm AYFY(LT side of transformer to AMF).

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

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

Termination of above UG cable.

Supply and fitting neutral CT in a suitable enclosure.

Supply and fitting Earth Fault Relay in a suitable enclosure.

EARTHING

Supply, conveyance and providing plate earthing 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 copper flats/wires for earthing of transformer, 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.

25X3 mm Cu strip.

SAFETY EQUIPMENTS

Supply and providing fire retardent, electrical insulating rubber mat of suitable thickness as required. (3 nos).

Supply and installation of fire extinguisher.(3 nos).

Supply and provide 2 nos fire bucket with stand.

Supply HT gloves.(1 no.).

Supply and Fixing shock treatment chart (1 no.)

Supply and fixing danger plate(2 nos.).

Supply and installation of emergency power off push button with suitable box for transformer.

DOCUMENTATION

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

Testing fee for TOD meter, CT/PT, Neutral CT, Earth fault relay and Soil resistivity test, Scrutiny, Inspection fee to be remitted to Electrical Inspectorate.

MAIN SWITCH BOARD AND DB CHANGING IN POWER ROOM (OPTIONAL)

Dismantling old MSB and 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. work include retermination of removed cables from old MSB.

INCOMER

200A 4 pole MCCB - 1 no.

OUTGOING

125A 4 pole MCCB - 2 nos., 63A 4 pole MCCB - 4 nos.

Supply and installing RYB indications - 3 nos.

Dismantling old DB and Supplying and fixing 8 way surface/ recess mounting, vertical type, 415 V, MCCB distribution board of sheet steel, dust protected, duly powder painted, inclusive of suitable size tinned copper bus bar, common neutral link, earth bar, din bar for mounting MCBs as required .

INCOMER

160A 4 pole MCCB - 1 no.

OUTGOING

16A to 63A 3 pole - 6 nos.

6A to 32A single pole - 6 nos.

1 )All KSEB Fees should be paid by client ( caution deposit, Administrative over head charges, supervision charges, OYEC etc.)

2) Civil work such as Trasformer Foundation, excation of HT cable Trech with concrete slab top covering from RMU to Transformer should be done by client.

3) If position of RMU Changes from the proposed position charges will vary accordingly.

YOOSAF K A