ELECTRICAL WORK

Amount

Dismnalting of 220 KV Jack Bus ( 36 mt.) with Zebra conductor . The work includes opening of single bolted type tension fitting , cutting & bending of conductor, dehoisting of disc insulator string and shifting of material from site to store and all other associated work to complete the work satisfactorily.( 02 Nos Jack bus)

Shifting of old & unused/ scrap material lying near proposed 160MVA TF bay & Shifting of old/scrap material installed in old centralized compressor room to open store as mentioned below- (a)Shifting of Old and damaged 220 KV Current Transformer (34 Nos) (b)Shifting of Old and damaged 220 KV Circuit Breaker with structure (09 Nos) (c)Shifting of Old and damaged 220 KV Circuit Breaker with structure (09 Nos) (d)Shifting of Old and damaged 220 KV Post Insulator (350 Nos) (e)Shifting of Old and damaged 220 KV Isolator channel base and Circuit Breaker structure piece (255Nos) . (f) Dismantling and shifting of compressor room equipment i.e. pump, motor, tank, starter and pipe etc. with help of Crane/Hydraand all other associated work to complete the work satisfactorily.

Erection of Auxiliary structure lattic type CLI, BTI, BCT, ALP etc. for installation of Isolator, CTs, LAs, etc. The job consist of shifting of all material from store to site of erection, erection of structure as per drawing with the help of GI nut & bolt, flat & spring washer, matching the hole, cutting & matching of member if required including cost of all men and T & P excluding GI structure Nut & bolt to complete the work. Erection of Auxiliary structure upon foundation and its proper tightening.

Erection of 245 KV SF-6 Circuit Breaker.

Erection of 245 KV Bus / Line Isolator

Erection of 245 KV Tandem Isolator

Erection of 245 KV Current Transformer.

Erection and mounting of 245 KV CT Junction Box.

Erection of 245 KV Post Insulator for support.

Erection of 198 KV Lighting Arrestors.

Erectoin of 220 KV Control and Relay Pannel of 160 MVA Transformer Pannel as per technical specification.

Ring earthing of 198/120 KV LA (including Fabrication of 3 Meter long electrode of MS Rod having 150 mm long conical shape) placing inside the ground in rectangular shape and connecting all 6 Nos electrodes with 75x10 mm MS flat laid on its edge and then this rectangle shape be connected to main earthmat at two place in opposite direction strictly as per drawing. (A) 198 KV LA ( Rectangle shape by 06 electrodes)

(B) 120 KV LA ( Rectangle shape by 06 electrodes)

Delta earthing of 220/132 KV, 160 MVA Transformer Nuetral (including Fabrication of 3 Meter long electrode of MS Rod having 150 mm long conical shape) placing inside the ground in triangular shape and connecting all 3 Nos electrodes with 75x10 mm MS flat laid on its edge and then this tringle shape be connected to main earthmat at two place in opposite direction strictly as per drawing. (A) 220/132 KV 160 MVA Transformer ( Tringular shape by 03 electrodes)

Earthing of equipments by cutting straightening, bending, laying 700 mm below ground and above ground of following size of MS flat for earthing of main and auxiliary structure, equipments structure. Transformer body and its neutral point, DM Box, MB Box, RTCC panel, Control, Relay panel including welding with main earthmat. Excavation of trenches, its back filling and all other associated work as required to complete the work. (A) Laying of MS Flat of size 75x10 mm

(B) Laying of MS Flat of size 50x6 mm

(C) Laying of MS Flat of size 25x6 mm

Painting of MS flat of different size after cleaning of rusted surface 1st coat of Red Oxide and 2 coat of Bus Green Paint to complete the work. (A) MS Flat of size 75x10 mm

(B) MS Flat of size 50x6 mm

(C) MS Flat of size 25x6 mm

Stringing of Jack Bus Bar of 220 KV Moose conductor with 12 Mtr. of span as mentioned below(For Double main & transfer scheme). The work includes cutting & bending of conductor, fixing of single /double bolted type tension fitting ,Hoisting of disc insulator and shifting of material from store site to erection site and all other associated work to complete the work satisfactorily as per drawing and technical specification. (A) 220/132 KV, 160MVA TF HV CB Jack Bus of Single ACSR Moose conductor

Laying of following size control cable in trench/cable trays from different control room equipments to 220 KV CB, CT,CVT, Isolators and their juntion boxes. Transformer marshaling box, isolators box and other outdoor equipments installed in 220/132 KV switch yard as per cable schedule including carriage of cable drum from store and all other associated work. (A) 2 core x 2.5 mm2

(B) 4 core x 2.5 mm2

(C) 6 core x 2.5 mm2

(D) 10 core x 2.5 mm2

(E) Termination of control cable(Of All cores) at both end

Laying of power cable of following size 500mm below ground level including excavation of trench and laying of cable putting of brick and filling of Ganga sand over the cables then filling of earth with all cost of men, material and T & P for the completion of job. (A) 3.5 Core 120/95 sq mm

(B) Termination of Power cable at both end with Aluminium Lug of size 3.5 Core x 120/95 sq mm

Periphery and switchyard Bay lighting. Providing and fixing of half round GI pipe OD-50mm for mounting the 120 Watt LED light upon gantry mounting of 2 No GI bracket up on gantry and fixing GI pipe complete with nut bolt and washer as per technical specification.

Providing and fixing of junction box on gantry structure with 1 No MS flat 40x5 mm of size 200x200x150 mm made of MS sheet of 16 gauge dully powder coated inside mounting 1 No 6 Amp MCB 1 No TB of 4 terminal & 1 No Kit Kat 16 Amp fixed upon mica sheet and back side mounting a flat 40x5 mm with 1 No 16mm dia hole and mounting PVC pipe from ground level to box as per technical specification.

Supply & fixing of new generation energy saving and environment friendly long life versatile pressure die cost aluminum out door high been flood light with high power 120 Watt LED as light source and exclusively designed polycarbonate cover along with electronic driver complete fitting suitable for 220 V input supply for ISI make CGL/Hevels/ Surya/ Philips/Bajaj of equivalent etc. including electrical connection also to be done by the contractor.

Shifting of Main Tank of the new 160MVA 220/132KV Transformer to its Plinth from Place of Unloading up to 20 Meter Distance including Turning of the Tank, as Required at 220KV Sub Station Khurja.

Additional Shifting of the Tank of above Transformer up to 120 Meter Distance. (1 Job for every 5 Meter).

Complete Erection of the 160MVA, 220/132KV Transformer including its Radiators, Conservator Tank, Turrets, Connecting Pipe Lines, HV / LV / Neutral Bushings, Cooling Fans, OLTC Drive Mechanism Box, Marshaling Box, OTI, WTI, Capillary Tubes etc.

Complete Evacuation of new 160MVA 220/132KV Transformer Main Tank and Filling of N2 of dew Point (-) 50°C or Better in Vacuum up to Pressure of 0.25 Kg / Cm2 and the again Evacuating the Transformer Tank after Required Time Interval (approx.12/24 Hrs.) using Vacuum Machine & .Performing the Vacuum stand test. The scope of work involves creating the vacuum inside the 160MVA 220/132KV Transformer up to -760 mm of Hg for Evacuation of moisture from core & winding and maintaining the pressure at least for 72 hours. The Work shall include Connecting Pipes of Machine as Required and Measuring Due Point Values of Dry Air/N2 after every Cycle till the Required Value is Achieved. Dew Point Meter shall be arranged by the contractor. The above works involves minimum 3 Cycles of evacuation and 3 Cycles of N2/Dry air Filling, however if results are not up to the mark 1 more cycle of Evacuation and N2 Filling will be done by the contractor.

Centrifuging of T/F Oil (50KL) in Oil Storage Tanks, un-interrupted till the desired BDV Value of the Oil is achieved and then Filling & Topping up of the Centrifuged T/F Oil in Transformer as per Standard Procedure to Maintain required Oil Level in the Transformer including Commissioning of Air Cell if required. Centrifuging & Circulation of T/F Oil in Transformer, un-interrupted till the desired BDV Value of the Oil & IR Values of Bushings are achieved including Hourly Recording all the Parameters such as Temp., Vacuum, and Insulation Resistance etc. Centrifuging Machine (Minimum 12KL capacity with 2 No. high vacuum pump of capacity 3000LPM and Root Pump of capacity 1500LPM), its Operator and all associated T&Ps shall be arranged by the Contractor at his own cost.

Erection of RTCC Panel of 160MVA, 220/132KV Transformer after Shifting of RTCC Panel from Stores / designated place to Control Room and Making Earthing of the RTCC Panel.

Safe Carriage of 50 KL Oil Storage Tank from 400 KV S/S Pali Gr. Noida with Approx. 60Km distance to 220KV Sub Station Khurja including its Shifting & Loading at 400 KV S/S Pali Gr. Noida and Unloading, Shifting & Placing at site at 220KV Sub Station Khurja.

Supply & installation testing commissioning of quick opening flood, deluge value of HD of 150 NB as per Max working pressure 10 Kg/cm2, as per specification (HD/Mather Platt/equivalent)with anti-corrosive treatment

Supply & installation & Commissioning of gate value (sluice Valve/Butterfly valve) as per IS specification (IS Code: 14846) of (Zoloto/Kartar/Sir make) with anti-corrosive treatment with detail as below. (A) 150 NB

Supply & installation & testing commissioning of “Y” Type strainer (Kartar/Sir/Kalpana/Agro make) of dia Max working pressure 7 Kg/cm2 with anti-corrosive treatment with detail as below. (A) 150 mm

Supply & laying of different size of M.S pipe B class for fire water pipe line/support as per IS specification (IS Code-1239) Complete with elbow Tee Socket reducer etc. with anti-corrosive treatment with detail as below. (A) 150 NB

Supply & laying of different size of GI pipe B class for fire detection water pipe line as per specification (IS Code-1239) as per drawing enclosed complete with elbow Tee Socket reducer. with anti-corrosive treatment with detail as below. (A) 65 NB

Supply & Installation of Flanges as per IS-1538 of different size as per drawing work include proper butt welding with pipe & proper packing and coupling with Nut & Bolt.with anti-corrosive treatment with detail as below. (A) 150 NB

Supply, Installation & Commissioning of high velocity water spray nozzles flow capacity 3.5 Kg./cm2 Spray core angle 900.

Supply & Installation & Commissioning of Quartzite bulb detectors (QBD) operate at 790C sensing at rated temp for actuation of the element 10-12 sec.

Supply, Installation & Testing Commissioning of fixed differential switch (Danfoss/Indfoss make) type pressure switch range 1-10 Kg cm2

Pressure gauge as per IS Specification IS Code-3624 Accuracy 5%

Dismnalting of 132 KV Jack Bus ( 36 mt.) with Zebra conductor . The work includes opening of single bolted type tension fitting , cutting & bending of conductor, dehoisting of disc insulator string and shifting of material from site to store and all other associated work to complete the work satisfactorily.( 02 Nos Jack bus)

Dismantling of AXM Beam

Erection of Main & Auxiliary structure lattic type ATM, BTM, AXM, CLI, CBI, XPM, YMM, BBL, BTI, APR, BCT, ALP etc. consisting of coloumn, beam, peak, mast etc. and auxilary structure for installation of CTs, PTs, LAs, etc. The job consist of shifting of all material from store to site of erection, erection of structure as per drawing with the help of GI nut & bolt, flat & spring washer, matching the hole, cutting & matching of member if required including cost of all men and T & P excluding GI structure Nut & bolt to complete the work. Erection of Main & Auxiliary structure lattice type BCT, ALP etc. upon foundation and its proper tightening.

Erection of 145 KV SF-6 Circuit Breaker.

Erection of 145 KV Current Transformer

Erection and mounting of 145 KV CT Junction Box.

Erection of 145 KV Potential Transformer.

Erection and mounting of 145 KV PT Junction Box.

Erection of 145 KV Bus Isolator without earth switch

Erection of 145 KV Tendom Isolator

Erection of 145 KV Post Insulator for support.

Erectoin of 120 KV Lighting Arrestors.

Erectoin of 132 KV Control & Relay Pannel of TBC & BC as per technical specification.

Laying of 40mm dia MS round bar 700 mm below ground level by the cutting, straightening, welding, painting welded section, excavation of trenches, its back filling and all other associated work as required to complete the work including shifted MS bar from store to switchyard.

Fabrication of 3 Meter long electrodes with 40mm MS Round bar having 150 mm long conical shape by 700 mm below ground level by the cutting, straightening, welding, painting welded section,as per strictly UPPTCL drawing.

Making cross joint of laid 40mm dia MS Round bar having 700 mm below ground level by the due welding at all 4 corners & fixing 2No MS angle pieces opposite corners of the cross joint by welding as per strictly UPPTCL drawing

Making Lap/End joint of above laid 40mm dia MS Round bar by the cutting, straightening, welding, painting welded section,as per strictly UPPTCL drawing.

Earthing of equipments by cutting straightening, bending, laying 700 mm below ground and above ground of following size of MS flat for earthing of main and auxiliary structure, equipments structure. Excavation of trenches, its back filling and all other associated work as required to complete the work. (A) Laying of MS Flat of size 75x10 mm

(B) Laying of MS Flat of size 50x6 mm

(C) Laying of MS Flat of size 25x6 mm

Painting of MS flat of different size after cleaning of rusted surface 1st coat of Red Oxide and 2 coat of Bus Green Paint to complete the work. (A) MS Flat of size 75x10 mm

(B) MS Flat of size 50x6 mm

(C) MS Flat of size 25x6 mm

Stringing (extension)of Transfer& Jack Bus Bar of 132 KV Panther/ Moose/Tarantulla/Zebra conductor with different length of span as mentioned below(For single main & transfer scheme). The work includes cutting & bending of conductor, fixing of single /double bolted type tension fitting Hoisting of disc insulator and shifting of material from store site to erection site and all other associated work to complete the work satisfactorily as per drawing and technical specification. (A) 220/132 KV, 160MVA TF LV Jack bus & CB jack by Single ACSR Zebra conductor

(B) 132 KV Main Bus -2 & Transfer bus by Single AAC Tarantulla & ACSR Zebra conductor respectvely

Jumpering, interconnection of equipment with specified conductor of various 132 KV equipments with main/Transfer/Jack Bus Bar of ACC Tarantulla /Zebra conductor. The work includes cutting of conductor, bending in proper shap, clamping with the help of clamps and all other associated work to complete the work. (A) Jumpering of Single Tarantulla/Zebra conductor.

Jumper 2No R & B phase dismantling & re-jumpering of 132kv MAIN BUS-1st to correct phase association for 132kv BC Bay of all 14 Nos Bays of Twin ACSR Zebra/Panther conductor and all other associated work to complete the work. (A) Jumpering of Twin Zebra/Panther conductor.

Laying of following size control cable in trench/cable trays from different control room equipments to 132 KV CB, CT,CVT and their juntion boxes. Transformer marshaling box, isolators box and other outdoor equipments installed in 220/132 KV switch yard as per cable schedule including carriage of cable drum from store and all other associated work. (A) 2 core x 2.5 mm2

(B) 4 core x 2.5 mm2

(C) 6 core x 2.5 mm2

(D) 10 core x 2.5 mm2

(E) Termination of control cable(All core) at both ends

Bolted type single Tension fitting for Zebra Conductor suitable for 120/70KN Disc insulator with hardware set as per techinical specification.

Bolted type single Suspension fitting for Single Zebra Conductor Suitable for 120/70KN Disc insulator with hardware set as per techinical specification.

4 Bolted Type PG clamp suitable for Zebra to Zebra Conductor Complete with HDG nut bolt & washer as per technical specification.

4 Bolted Type PG clamp suitable for Tarantulla to Zebra Conductor Complete with HDG nut bolt & washer as per technical specification.

4 Bolted Type PG clamp suitable for Dear to Zebra Conductor Complete with HDG nut bolt & washer as per technical specification.

198 KV LA clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nut & bolts and washer as per Technical specification.(through type)

120 KV LA clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nut & bolts and washer as per Technical specification.(Verticle take off)

Bus Post clamp suitable for Zebra conductor complete with hot dip galvanized nut, bolts & washer as per technical specification.

Supply of cable gland of different sizes i- 2C x 2.5 mm (16mm)

ii- 4C x 2.5 mm (19mm)

iii-6C x 2.5 mm (22mm)

iv- 10C x 2.5 mm (25mm)

Gupta Elect and Engg Works