Electrical works for evacuation of power from Dam toe Power House at Gurez on 33kV level under UT Capex Budget 2022-23

Amount

Evacuation of power from Dam toe Power House at Gurez on 33kV level

SITC of 11 kV RING MAIN UNIT (3 way type,two isolators and one Vaccum Circuit breaker) ,SF6 Insulated, out-door type, Extensible type,breaking capacity 25 KA for one second with SF6 circuit breaker / VCB self powered with O/C + E/F Relay comprising of a) 11kV 630 Amp Motorised isolator including earthing Switches with making capacity 52kA, having mechanical ON/OFF, earth indications with fault current Indicator. b) 11kV ,200 Amp motorised Spring operated, Circuit breakers with earthing switches, connecting the RMU to Supply transformer. c).Copper Bus Bar of 630 Amp rating. d). 1 No Numerical Aux. Powered relay having non directional O/C and E/F protection (for each ciruit breaker). d). The Circuit Breaker enclosures shall be outfitted with a communicable-type numerical (feeder protection) relay, i.e., one for each circuit breaker. The relay shall also interface via an RS 485 port in order to send, as a minimum, real-time phase current , readings using the MODBUS protocol. e) Incomming Isolator having FPI with eclectrical reset Contact /facility. f) All necessary Potential free contacts for indications relevent to RMU monitoring and control . g) Capacitor voltage dividers serving Live-Line Cable indicators in each breaker and Isolator. The job includes providing and laying of foundation upto 2.5cum including excavation, shuttering & centering and its removal and plaster work (complete job).

SITC of 33kV RING MAIN UNIT (3 way type,two isolators and one Vaccum Circuit breaker), SF6 Insulated, extensible type, at 33kV system volatge and breaking capacity 25kA for one second,with SF6 circuit breaker / VCB self powered with O/C + E/F Relay system comprising of a) One (1) Nos. 33kV, 630 Amp. motorized Isolators including earthing switches with making capacity 62.5kA, having mechanical ON/OFF b) Two (2) No. 33kV, 200Amp motorized, spring operated, Circuit Breakers (CB) with earthing switches c) Cu Bus - Bar of 630 Amp. rating d) One (1) No. Numerical Aux. self powered relay having non-directional 0/C and E/F protection (for each Circuit Breaker feeder). Relay should have minimum 7-DI & 8- DO. The relay shall also interface via an RS 232/485 port in order to send, as a minimum, real-time readings using the MODBUS protocol. e) Incoming Isolators shall have FPI with electrical reset contact / facility. f) All necessary potential-free contacts for indications relevant to RMU monitoring and control. g) Capacitor Voltage Dividers serving live-line cable indicators in each Breaker & Isolator. The job includes providing and laying of foundation upto 2.5cum including excavation, shuttering & centering and its removal and plaster work (complete job).

Providing & fixing of Earthing of RMUs --Excavation of earth pit of dia 650 mm & depth 3000 mm, installation of Earthing pipe of 40 mm Nominal bore & 4mm wall thickness & length 2.5 mtr long as Per IS 1239.GI Strip for neutral earthing of size 50 mmx6 mm for connection of rmu body as per IS 2629/85, GI nuts & bolts,refilled with earth enhancement materials and earth Chamber made of brick masonary with RCC slab cover

Supply, laying, testing & commissioning of 33 kV, 1 core, 240 sq.mm, Al conductor,XLPE, insulated, armoured cable (from the RMU to Recieving Substation)The cable should meet the harsh weather conditions and should stand up to -25 degree Celsius.

Supply installation testing and commissioning of 33kV Heat Shrinkable cable termination kit suitable for cable termination kit suitable for 240 Sq mm² cable as per REC Standard (indoor type)

Supply installation testing and commissioning of 33kV Heat Shrinkable cable termination kit suitable for cable termination kit suitable for 240 Sq mm² cable as per REC Standard (outdoor type)

Supply & fixing of cable route marker precasted with cement concrete 1:2:4 (1 cement : 2 coarse Sand & :4 graded stone aggregate 20 mm nominal size ) of size 60 cm X 60 cm at the bottom & 50 cm X 50 cm at the top with a thickness of 10cm including inscription duly engraved as required, after every avg 500m of underground cable.

Supply, laying, testing & commissioning of 12 Core 2.5 mm² Control cable copper Armoured , 1.1 kV Grade, ISI, FRLS.

Supply, laying, testing & commissioning of 6 Core 2.5 mm² Control cable copper Armoured , 1.1 kV Grade, ISI, FRLS.

Supply, laying, testing & commissioning of 2 Core 2.5 mm² Control cable copper Armoured , 1.1 kV Grade, ISI, FRLS.

Supply, laying, testing & commissioning of 11 kV, 1 core(4 runs) 185 sq.mm, Al conductor,XLPE, insulated, armoured cable (from the RMU to the transformer). The cable should meet the harsh weather conditions and should stand up to -25 degree Celsius.

Supply installation testing and commissioning of 11kV Heat Shrinkable cable termination kit suitable for cable termination kit suitable for 185 mm² cable as per REC Standard (indoor type)

Supply installation testing and commissioning of 11kV Heat Shrinkable cable termination kit suitable for cable termination kit suitable for single core 11kv 185 mm² cable as per REC Standard (outdoor type)

SITC of 4 pole tower of 11 Mtr ST Poles (ST-410 SP 56) including cement bottoming (1:2:4 mix, 0.6 cum/pole), earthing complete by G.I Pipe (40mm, 3mtr long through G.I strip), painting with Red oxide & Almunium paint (1 ltr per pole), fixing of Danger plates & anticlimbing devices (with clamps) & fixing of required nuts& bolts.

SITC of 4pole tower of 9 Mtr ST Poles (ST-410 SP 33) including cement bottoming (1:2:4 mix, 0.6 cum/pole), earthing complete by G.I Pipe (40mm, 3mtr long through G.I strip), painting with Red oxide & Almunium paint (1 ltr per pole), fixing of Danger plates & anticlimbing devices (with clamps) & fixing of required nuts& bolts.

Providing & fixing of G.I Angles/ Channel/ Flat of different sorts including cutting, bending, drilling, welding etc complete modification as per site requirement.

Supply ,Installation Testing and Commissioning of Galvinized Nuts and Bolts.

SITC of 100 mm² ACSR Conductor

Supply & fixing of PG Clamps for 100 mm² ACSR Conductor

Supply ,Installation Testing and Commissioning of 33kV Polymeric composite Pin Insulator 36kV, 10kN, Lighting Impulse 170kV Positive and 180kV Negative, creepage distance 900mm

Supply ,Installation Testing and Commissioning of 33kV Polymeric composite Disc Insulator 36kV,min failing load 70kN, Lighting Impulse 170kV Positive and 180kV Negative, creepage distance 900mm

33 kV Isolator with Earthing Blade (36kV,800A, Outdoor,3 poles, 25 kA) Porcelain/Polymer including necessary fabrication as per requirement set of 3 Nos

Supply ,Installation Testing and Commissioning of 33 kV Lightening Arrestors (30 kV, 10kA, Station class, ZnO, Polymer) gap less the job includings finxing of mini insulators at bases of each LA as per design and earthing termination

SITC of 11 kV Isolator, Double Break,3-pole, 630 Amp, horizontal mounting Type, with Earth Switch including necessary fabrication as per requirement set of 3 Nos

SITC of a). Battery Bank 36 V,100 AH , of 18 No. cells of 2 V each, sealed maintenance free VRLA type,High impact Polyprophelene copolymer container,flame retardant. b). 30V,100 AH , Float-Cum-Boost Charger With Full wave rectification for 220 V, 1Phase, 50 HZ AC Input Supply . the panel should have inbuilt surge absorber of 3 phase 4 wire system

Supply ,Installation Testing and Commissioning of 11 kV Gapless Surge Arrestor,9 kV ,10 kA ,LA with polymer housing, Stn. Type the job includings finxing of mini insulators at bases of each LA as per design and earthing termination

Providing and laying of 95 sq.mm 3.5 core XLPE LT cable along with HDPE pipe from source to ACDB pannel including its termination. The cable is to be laid in underground in 40mm dia HDPE pipe by way of excavation and back filled back after complete job.

Providing and fixing of ACDB pannel of 2mm thickness having different chamber with individual sections having 2 No.'s of 125A MCCB 35Ka (incommer) and 3 No.'s of 63A TPN MCCB's for outgoing along with 6 no.'s of 40A MCCB's 10KA Capacity. The pannel should be outdoor type having IP-65 Protective rating with inbuilt copper bus bars of 300A capacity and grouting legs complete job.

Supply & fixing of Galvanised Stay Set with 50x8mm stay clamp, guy insulator(2Nos.), anchor plate (300x 300 x 8) mm, nut?bolts, 2 Nos turn-buckles, 1.8m long,20 mm diameter solid GS stay rod & 7/4 mm dia GI stranded wire complete

Marib Constructions

M/S BHAT POWER PVT. LTD.