Replacement of 2x12.5MVA Power Transformers-1&2 by 2x20MVA Power Transformers at 66/11 KV Addihalli KPTCL Substation in Nagamangala Taluk, Mandya District on Partial Turn Key (PTK) basis including supply of all matching materials/ equipment(except 66/11kV Power Transformer and 11kV switchgear) and erection & including civil works of all materials/equipment, testing and commissioning.-Reserved for SC Category/CALL-3

Replacement of 2x12.5MVA Power Transformers-1&2 by 2x20MVA Power Transformers at 66/11 KV Addihalli KPTCL Substation in Nagamangala Taluk, Mandya District on Partial Turn Key (PTK) basis including supply of all matching materials/ equipment(except 66/11kV Power Transformer and 11kV switchgear) and erection & including civil works of all materials/equipment, testing and commissioning.-Reserved for SC Category/CALL-3

11kV Current Transformer (CT): 1200-800/1-1-1A (for Incomer/Bus Coupler of 25 kA SWG)INDOOR

11kV Neutral Current Transformer (NCT) 31.5kA, NCT of ratio 1200-800/1-1A for REFR Protection (of similar rating and ratio as that of Incomer of 11kV Switchgear) with terminal connector suitable for 2...

MOUNTING STRUCTURES :

i) 11 kV NCT Mounting Structure-(0.157 MT per structure) 02 nos.

ii) 11KV Cable Terminating Structure for transformer LV side (0.072 MT per structure)02nos

BUS BAR FORMATION :

PVC insulated Copper Control Cable with Lugs / Ferrules. 1.1 KV class. Size of cable.

a) 19 Core 2.5 Sq.mm.

b) 4 Core 6.0 Sq.mm.

c) 4 Core 2.5 Sq.mm.

d) 2 Core 6Sq.mm.

e) 2 Core 2.5 Sq.mm.

11KV, XLPE Insulatd UG Cable as per Technical Specification

Single core 1000 Sq. mm Aluminium cable ( 3 Runs of 1C x 1000 Sq. mm U.G Cable from 66/11 KV Transformer LV to 11KV bank SWG .

Cable Terminationkits suitable for following sizes as per techincal specification.

a) 1000 Sq./ mm Single Core Indoor

b) 1000 Sq./ mm Single Core Outdoor

30ABC relay-30. 110V DC, 4Nos, SR Contact, HR Flg, type EMR261x3

POWER TRANSFORMERS:

a) 20MVA, 66/11kV, 3-Ph, 50Hz, Core Type, 2 Winding Delta/Star transformer, vector group DYn11 with OLTC ONAN/ONAF with fan control cubicle, RTCC Panel, Numeric...

11kV Current Transformer (CT): 1200-800/1-1-1A (for Incomer/Bus Coupler of 25 kA SWG)INDOOR

11kV Neutral Current Transformer (NCT) 31.5kA, NCT of ratio 1200-800/1-1A for REFR Protection (of similar rating and ratio as that of Incomer of 11kV Switchgear) with terminal connector suitable for 2...

MOUNTING STRUCTURES :

i) 11 kV NCT Mounting Structure-(0.157 MT per structure) 02 nos.

ii) 11KV Cable Terminating Structure for transformer LV side (0.072 MT per structure)02nos

PVC insulated Copper Control Cable with Lugs / Ferrules. 1.1 KV class. Size of cable.

a) 19 Core 2.5 Sq.mm.

4 Core 6.0 Sq.mm.

4 Core 2.5 Sq.mm.

2 Core 2.5 Sq.mm.

11KV, XLPE Insulatd UG Cable as per Technical Specification

Single core 1000 Sq. mm Aluminium cable ( 3 Runs of 1C x 1000 Sq. mm U.G Cable from 66/11 KV Transformer LV to 11KV bank SWG .

Cable Terminationkits suitable for following sizes as per techincal specification.

a) 1000 Sq./ mm Single Core Indoor

b) 1000 Sq./ mm Single Core Outdoor

Earth mat formation:

Supplying, Laying and welding of M.S.Flats 50 x6 mm, applying ACB paint to welded portion and covering with earth.

Supplying and Grounding of Equipment with G.I.Flat 50x6mm and connecting Equipment to the earth mat/ground pit. Each point of earthing with all formation works like bending, twisting, drilling of ho...

Providing 25 mm dia M.S. Rod1.05 metre long earthmat spikesincluding heating, bending top 50 mm overlap flattening andmaking spike edge at one enddriving into the earth below theground level and weldi...

Releasing and re errection of existing 1000sqmm UG cables (During laying of new cables if required)

Dismantling of 12.5 MVA, 66/11 kV, Transformer & parts like Radiator , bushings , draining of oil from transformer etc., as per direction of site Engineer(37.065+28.25 MT)

Moving of Transformer from the plinth to the loading point as per direction of site engineer. 65.315 MTx 50mtrsx1no=3266

Decommissioning of 11 KV NCT (800-400/1-1-1A) including releasing earth connctions and secondary connections and moving from point of releasing to point of loading.

Decommissioning of 800-400/1-1-1A Bank -1 CTs including releasing earth connctions and secondary connections and moving from point of releasing to point of loading.

Decommissioning of cable terminating structure for LV side of the Transformer

Decommissioning of NCT structure of the Transformers

POWER TRANSFORMERS:

a) 20MVA, 66/11kV, 3-Ph, 50Hz, Core Type, 2 Winding Delta/Star transformer, vector group DYn11 with OLTC ONAN/ONAF with fan control cubicle, RTCC Panel, Numeric...

(for Incomer/Bus Coupler of 25 kA SWG) INDOOR

11kV Class, 31.5kA, NCT of ratio 1200-800/1-1-1A for REFR Protection (of similar rating and ratio as that of Incomer of 11kV Switchgear) with terminal connector suitable for 2 Nos. of 75mmx6 mm Copper...

Earth work excavation by manual means for drains, canals, waste weir, draft, approach channels, key trenches, foundation of Buildings & bridges and such simillar works in all kinds of soils, as per dr...

Providing and laying in position Cement Concrete for levelling course for all works in foundation. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes...

Providing and laying in position Cement Concrete for all Sub structures of building, Irrigation works, Sub structure works of bridges, Drain works & other parallel works from 0.50m to 3.50 m height. T...

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations and other similar works etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by r...

Supplying, fitting and placing TMT FE 550 / 550D Steel Reinforcement including cost of all materials, machinery, labour, cleaning, straightening, cutting, bending, hooking, laping/welding joints, tyin...

Providing and fixing Structural Steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat...

Jelly Spreading (20-25 mm): Supplying and providing jelly in the station yard of uniform thickness of 100 mm including the cost of materials, labour charges, required tools and plants etc., complete. ...

Providing and laying Reinforced Cement Concrete pipe light duty NP2 for culverts, roadway utilities& crossingsas per IS 458:2003 in Single row including pointing ends and fixing collars with cement mo...