Supply and installation of 125 MVAR Bus Reactor at SGTPS

Supply portion

420 KV, 125 MVAr, 3ph. shunt reactor fitted with all accessories/ fittings, bushings etc. & equipped with online monitoring system but without NGR.

Insulating oil required for first filling for Reactor including 10% extra in container/drums.

Nitrogen injection Fire Protection System (NIFPS) complete including heat sensors for fire detectors & Spare nitrogen cylinder.

Material required for extension of Existing Fire Fighting System of the Switchyard to cover the New Reactor and associated equipments.

390 kV gapless Lightning Arrester (1-ph.) with surge counters, corona resistant connector suitable for twin moose conductor, set of foundation bolts, GI mounting structures etc.

420 KV, 2000A, 40kA , 3-phase, SF6 gas circuit breaker (without PIR) (spring –spring mechanism) complete with all accessories, connectors, breaker Marshalling box , gas leak detector and adapter for gas filling including set of foundation bolts, GI mounting structures etc

420kV, 2000A, 40KA (HCB type) Isolators & earth switches (3ph.) complete with operating mechanism, control box & support insulators, set of foundation bolts, B19 GI mounting structures etc.:-

420kV isolator with one E/S for Main bus-I

Isolator (tandem) without E/S for transfer & Main bus-II

Isolator with two E/S for Line isolator

420kV (5 core) Current Transformers (1-ph.) dead tank/live tank with Junction Box- 2000A, 40KA with 120% extended current rating complete with set of foundation bolts, GI mounting structures etc.

Bay marshaling Box complete

C&R panel (separate panel for control & protection relays required) equipped with latest numerical relays and other materials (Bus bar protection, LBB, OC relay, EF protection Relay, differential, reactor protection Back up impedance and all other protection system etc.)

Ladder type GI cable trays of suitable dimensions, PVC/GI pipes of suitable dimensions for laying underground cables in the switchyard yard, Cable glands, lugs of various size, end termination kit, cable jointing kit, GI hardwares etc. 400kV reactor bay.

Power and control cables (ISI approved) for 400kV reactor bay, PVC/GI pipes of suitable dimensions for laying underground cables in the switchyard yard, Ladder type GI cable trays of suitable dimensions, Cable glands, lugs of various size, cable termination kit, GI hardwares etc.

Power cables- 1.1kV armored FRLS cables (as required).

(i) AC Power-

Power cable 3.5C, 35 Sq.mm.

Power cable 4C, 6 Sq.mm.

Power cable 2C, 6 Sq.mm.

Power cable 3.5C, 70 Sq.mm.

(ii) DC Power-

Power cable 2C, 6 Sq.mm.

Power cable 4C, 6 Sq.mm.

Power cable 4C, 16 Sq.mm.

Control cables- 1.1 KV armored/unarmoured FRLS copper cables

Control cable 5C, 2.5 Sq.mm.

Control cable 27C, 2.5 Sq.mm.

Control cable 19C, 2.5 Sq.mm.

Control cable 14C, 2.5 Sq.mm.

Control cable 10 C, 2.5 Sq.mm.

Control cable 7C, 2.5 Sq.mm.

4” IPS tube

400kV Bus Post Insulator (BPI)

Set of foundation bolts, clamps, GI hardwares, GI mounting structures etc.

GI angles required for erection of Tower [ TK tower with peak (30 M) and TC,TD towers without peak (15M)

GI angles required for erection of Tower (TC/ equiv.); 01 No. with peak (15Mtr)

GI angles required for erection of Tower (TD/ equiv.) with peak(15Mtr)

GI angles required for erection of gantry (27M)

GI angles required for erection of gantry (35M)

ACSR moose conductor, corona shield, 160KN disc insulators strings for suspension & tension with hardware, spacers, clamps, connectors with GI hardwares etc.

Extension of existing Earth Mat to the extended bay with 40 mm MS Rods mash spaced 17m*17m (for the entire area 27m*195m of the bay), providing necessary risers, earthing conductors etc. of 40mm dia MS Rods. Providing earth mat/ earthing strips including 50*8mm GI Flats, 75*10mm GI Flats, as per IS: 12776/ 2002 for various equipment/ structure earthing, Providing Treated Earth Pits as per IS: 3043 for Reactor Neutral and LAs, Various Hot Dip GI Nuts, Bolts, Washers etc.

Complete illumination system for reactor bay/switchyard area- 350W LED Flood Lights (approx. 30 Nos.), welding receptacle including JB, cable, conduit, lighting panels (outdoor)

Optical fiber cable for complete system.

Supply of recommended and mandatory spares as per schedule ****

Service Part E&M

Complete erection, testing, commissioning, charging of 420kV 125MVAr shunt reactor and all accessories/ fittings, bushings etc. & equipped with online monitoring system but without NGR.

Filling of Insulating oil required for first filling for Reactor.

Complete erection, testing, commissioning,of NIFPS fire fighting system for 125MVAr reactor including heat sensors for fire detectors & Spare nitrogen cylinder.

Extension of Existing Fire Fighting System of the Switchyard to cover the New Reactor and associated equipments.

Complete erection, testing, commissioning of 390kV gapless metal oxide Lightning arresters including surge counters, corona resistant connector suitable for twin moose conductor, set of foundation bolts, GI mounting structures etc.

Complete erection, testing, commissioning of 420kV circuit breaker including all accessories, connectors, breaker Marshalling box , gas leak detector and adapter for gas filling including set of foundation bolts, GI mounting structures etc.

Complete erection, testing, commissioning of 420kV isolators & earth switches including operating mechanism, control box & support insulators, set of foundation bolts, GI mounting structures etc.

Complete erection, testing, commissioning of 03 Nos. 420kV (5 core) Current Transformers (1-ph.) dead tank/live tank with Junction Box- 2000A, 40KA with 120% extended current rating complete with set of foundation bolts, GI mounting structures etc.

Complete erection, testing, commissioning of bay marshaling kiosk including.

Complete erection, commissioning, testing etc. of C& R panel including latest numerical relays and other materials (Bus bar protection, LBB, OC relay, EF protection Relay, differential, reactor protection Back up impedance and all other protection system etc.)

Laying & termination of power and control cables (in supply portion as mentioned in row no.1.16 to 1.32) including those for 400kV reactor bay, PVC/GI pipes of suitable dimensions for laying underground cables in the switchyard yard, Ladder type GI cable trays of suitable dimensions, Cable glands, lugs of various size, cable termination kit, GI hardwares etc.

Complete erection of 4” IPS tubes (approx. 400mts) including, 400kV Bus Post Insulator (BPI), set of foundation bolts, clamps, GI hardwares, GI mounting structures etc.

Erection of 06 Nos. towers (TK/ equiv.); 01 No. tower (TC/ equiv.); 01 No. tower (TD/ equiv.) , 03 Nos. gantry (27M) & 03 Nos. gantry (35M) (SAIL/equivalent make) including all type of clamps, connectors with GI hardwares, GI Earth wire on towers with GI hardware etc. [ TK tower with peak (30 M) and TC,TD towers without peak (15M)

Stringing of bus bar & overhead conductor, jumpering/ charging with existing 400kV system including ACSR moose conductor, corona shield, 160KN disc insulators strings for suspension & tension with hardware, spacers, clamps, connectors with GI hardwares etc.

Complete laying, erection of earthing, earthing mat & earthing strips including Earthing flats/strips 50 x 8 mm GI, Earthing strips 75 X 10 mm GI, 40 mm MS rod for earthing mat, risers as per IS-12776 (2002),Various size of Hot dip GI nut & bolts etc.

Complete erection and commissioning of lighting fixtures to illuminate complete reactor bay area, panels, including 350 watt LED Flood Light fittings (30Nos.), 6 Nos. Welding receptacles, lighting Panel, JBs, wires, conduit etc.

Laying & termination of optical fiber cable for complete system.

SUNOVERSEAS

STS INFRACON PRIVATE LIMITED