Supply Testing Erection and Commissioning for Augmentation of 66/11 KV Receiving Station Nagri

66KV TRANSFORMER BAY FOR 66/11kV SUB STATION

SITC of 66 KV Isolator without Earthing Blade 630 Amp 31.5 KA, 3 Phase, double break centre rotating type, G.O isolator alongwith Support insulators, operating mechanism, base channel, down pipe and all required accessories as per scope of work and approved drawings confirming to IS Standards.

SITC of 66KV 1-phase CT, 250-125/5-5-2.89 A 3 core, dual ratio. Core- I metering (250-125/5 A, 15 VA, 0.2s accuracy class), core-II protection ( 250-125/5A, 15VA,5P10) & Core-III Differential (250-125/2.89A PS Class) Current transformer along with junction box (1 No. junction box for 3 No's CTs) as per Technical specifications, scope of work & approved drawings) (3 No. CTs in 1 set).

SITC of 66 KV SF6 Circuit Breaker 72.5 KV, 1250 A, 31.5 KA, 3-Phase outdoor type circuit breaker alongwith support Structures, Marshalling box, terminal connectors, closing and tripping coils 30V DC and required accessories complete as per technical specification scope of work and approved drawings confirming to IS Standards

SITC of Control & relay panel for 66/11 KV power transformer, Indoor type, SCADA compatible, remote/manual Switch, along with 3 O/C and 1 E/F & overcurrent relays and differential relays(IEC61850) voltmeter, ammeter, annunication windows with annuciation relays, energy meter -5A,DLMS compliant with RS-485 port & other components etc as per approved drawings & Techncal specifications

SITC of Neutral CT along with Structures

SITC of 11KV VCB Panel sets (Incomer 12 KV, 1250 A, 25 KA, 750/375/5-5A and Outgoing 12 KV, 1250 A, 25 KA, 400/200/5-5A) with vaccum circuit breaker(1+4) SCADA compatible & control panel including cast resin CT,PT,E/F & O/C relay(IEC 61850) , master Trip Relay, Mimic diagram, voltmeter, Energy meter DLMS compliant with RS-485 port, Annunciation window with annunication relays and other accessories etc as per TS, scope of work & approved drawings.

SITC Steel Structures

GI Nuts & Bolts of sorts

SITC Control Cables

12 Core armound Copper Cable 1.5 mm2 1.4 KV grade ISI FRLS

10 Core armound Copper Cable 1.5 mm2 1.4 KV grade ISI FRLS

4 Core armound Copper Cable 2.5 mm2 1.4 KV grade ISI FRLS

2 Core armound Copper Cable 2.5 mm2 1.4 KV grade ISI FRLS

Lugs, Ferrules etc.

SITC Conductor & Hardware

ACSR Panther Conductor 200 mm2 for 11kv Bus Bars and droppers

T-clamps

SITC POWER TRANSFORMER FOR 66/11 kV SUBSTATION

SITC of 20 MVA, 66/11kv, 3-phase, 50Hz, ONAN Type, Cu Wound( electrolytic tough pitch grade insulated with electrical grade kraft paper and PC board, core made of high grade non aging ,cold rolled grain oriented silicone alloy steel, Star-Star, Out Door conventional type Power Transformer along with transformer oil, Buchholz Relay, Breather,OTI & WTI, Marshalling Box, Conservator Tank, Oil level indicator,Valves 2 sets of 50 x 8 mm GS neutral Earthing strips (with braided conductor on bushing end and copper rod earthing in ground), vent explosion plug, control wiring between sensing equipment & marshalling box, LV/HV Bushing, Onload Tab Changer including RTCC Panel and allied assccessiories etc as per Technical specifications, scope of work & approved drawings alongwith mandatory spares ,i.e HT Bushing, LT Bushing, 5 Barrels of spare Fresh Transformer Oil, etc.

SITC 11 KV XPLE Power Cables

11 KV XPLE single core 630 sq. mm power cable (with 1 spare cable) for 20 MVA Power Transformer, round wire armoured cable, FRLS confirming to IS 7098 ( part-II)- 1985 standards

11KV XPLE 3-core 300 sq.mm power cable , round wire armoured cable, FRLS confirming to IS 7098 ( part-II)- 1985 standards

11 kV Cable Kits Single Core, 630 mm2 ‐Outdoor

11 kV Cable Kits Single Core, 630 mm2 ‐Indoor

11 kV Cable Kits Three Core, 300 mm2 ‐Outdoor

11 kV Cable Kits Three Core, 300 mm2 ‐Indoor

SITC of Plate Earthing of Substation- using GI Pipe 50mm dia , 3m long , GI strip of size 50x6mm welded with Galvanised Plate of size (600x600x6)mm, all ISI marked, to be connected with 66 KV Breaker, Isolator, 66 KV CT & 66 KV LA as per IS2629/85, GI Nuts and bolts, refilled with good earth, charcoal dust, salt, etc. through GI strip. The rate includes excavation of earthing Pit of 3 meter depth, disposal of excavated earth from site of earthing to out side substation and backfilling should be using Good Earth (3 cum), Charcoal Dust( 100 kg) and Salt( 40 kg) for each earthing and making of chamber at the top with funnel and chamber cover. Also, the rate should include provision of curing of earth plate using a network of GI Pipes of size 50mm dia with branches connected to each earth pit via valves of proper size and connecting it to submersible borewell.

SITC of Plate Earthing of Substation- using GI Pipe 50mm dia , 3m long , GI strip of size 50x6mm welded with Galvanised Plate of size (600x600x6)mm,all ISI marked, to be connected with 20 MVA Power Transformer (2 nos for neutral and 2 nos for body) as per IS2629/85, GI Nuts and bolts, refilled with good earth, charcoal dust, salt, etc. through GI strip. The rate includes excavation of earthing Pit of 3 meter depth, disposal of excavated earth from site of earthing to out side substation and backfilling should be using Good Earth (3 cum), Charcoal Dust( 100 kg) and Salt( 40 kg) for each earthing and making of chamber at the top with funnel and chamber cover. Also, the rate should include provision of curing of earth plate using a network of GI Pipes of size 50mm dia with branches connected to each earth pit via valves of proper size and connecting it to submersible borewell.

COMMON MISCELLENOUS WORKS IN 66/11KV RECEIVING STATION

66 KV Equipment Foundation (SF6 breaker in additional bay) of concrete RCC M-20 (1:1, 5:3)

Extension of the Control Room Building (Size: 20 ft × 15 ft × 12 ft) including provision of two windows (each 4 ft wide × 7 ft high), construction of plinth foundation, plastering of walls on both sides, complete painting of the control room, and execution of any additional repair works as required.

Construction of Toilets/Washrooms (11'-4 1/2" x 6'-6") – Complete job including septic tank, water tank (Sentex – 1000 Ltr), wall and floor tiling, plumbing and sanitary fittings along with water motor fitting, electrical works, painting, and all finishing items, complete in all aspects.(Drawing Enclosed)

Painting of complete Switch yard

Lighting of switchyard complete 04 nos on 9 m ST Poles (ST-410 SP-33) including cement bottoming of 1:2:4 mix as per REC standards 05 cum per pole, with 02 nos. LED of 100 Watts (IP66 Type) on each pole along with 01 no MK with MCB, two core cable and allied material)

COMMON MISCELLANEOUS EQUIPMENTS 66/11kV SUB STATIONS

Rubber Mat conforming to IS 15652

Fire Extinguisher for control room conforming to IS 2190

Safety Helmet conforming to IS-2925

Rubber Gloves for 66kV level IS-4770

Rubber Gloves for 11kV level IS-4770

Safety Belt as per IS-3521

Safety Shoes conforming to IS 15298( part2): 2016

Discharge rod (3 rods in each set)

Neon tester non contact voltage checker Upto 66KV Level conforming to IEC-61243-1

Marshalling kiosk

Tool Kit for substation with complete necessary items like Meggar, Insulation Tester, Digital Earth Tester, Crimping tool and other allied equipments such as Plier, Spanner set, Ring spanner set, Screw driver, electric chargeable Torch etc of reputed firm

Aluminium telescopic ladder having 20 ft length