Installation of Transformer, Mulsifire System, Bay Construction and associated work

Amount

Shifting of 160 MVA Transformer main tank from unloading place to existing Transformer plinth by dragging distance about 20 Mtrs.

Additional shifting 80 mtr. @ 5mtr. / job.

Providing Dry air at time of opening of blanking plate for erection of 160MVA transformer main Tank and filling of Dry air of dew point -40C or better for completion of work including connecting pipes and measuring due point of dry air etc.

Complete erection of 160 MVA Transformer and accessories of HV / IV / LV side Bushing, Radiator, Conservator Tank, A -Frame, Header, Pipe line, Pump, Cooling Fan etc. and Top up of oil upto required level.

Filling the Transformer oil in oil tank and its centrifuging upto required BDV and creating the vacuum inside the 160 MVA Transformer before filling the Transformer oil inside the main tank.

Centrifuging of complete Transformer oil in Transformer by connecting centrifuging pipes circulating the Transformer oil through centrifuging machine and taking the BDV value of the oil periodically till the required value is achieved as per direction of supervising engineer. The work includes all the work related to centrifuging the oil and filling the oil in Transformer tank approximate qty. 50 KL (Operator and centrifuging machine shall be arrange by the contractor).

Laying, dressing and binding of cable including fixing of cable tray support structure and termination of cable marking the tag and its ferruling as per schedule and inter connection between RTCC panel, marshaling box, driving mechanism etc.

Earthing of Transformer body, MB, DM box, OLTC, RTCC at two points using 75 x 10 / 50 x 6 mm M.S. flat & 40 mm M.S. rod.

Painting of earting strip above the ground level by one coat of Red oxide and two coat of bus green paints.

Delta earthing for 160 MVA Transformer consisting of fabrication of delta set with 3 Nos. 40 mm / 36 mm dia size 3 Mtrs. Long electrodes its placing inside the ground and connecting all the three electrodes with 75 x 10 mm M.S. flat 700 mm deep and conneting the same with earthmat at two places (M.S. Flat and M.S rod arrange by the Department)

Installation, testing & commissioning of new high velocity automatic water spraying mulsifire system for extension to new 160 MVA 220/132 KV Transformer including laying of pipe lines and fixing of valves, detectors etc. along with all materials as per detail given below:

Supply and laying of following B class G.I. pipe lines as per specification and site requirement complete with associated tee, sockets, elbows/bends, flanges etc. by providing, cutting, bending, fabricating and welding etc. of pipe lines along with 2 coats painting of overhead pipe lines in PO Red color after applying of 1 coat of red-oxide primer required for completion of the job.

GI Pipe 25 mm dia

GI Pipe 40 mm dia

GI Pipe 50 mm dia

GI Pipe 65 mm dia

GI Pipe 80 mm dia

Erection of pylon support by providing ‘B’ class 80 NB MS pipe with angle Iron, U bolts, Flanges, Nuts & Bolts for new Mulsifire System including welding, cutting of pipe etc. required to complete the job

Laying of underground 150 NB ‘B’ class MS pipe as per specification complete by providing 150 NB ‘B’ class MS pipe, elbow, tee socket, flanges etc. with anti corrosive treatment by bituminous painting on outer surfaces and wrapping hot dipped bitumen jute in 2 layers over underground pipe line including welding, cutting of pipe etc. required for the job.

Excavation of Earth along the side of road for laying of underground 150 NB ‘B’ class MS pipe line and back filling of earth alongwith reconstruction of PCC road after completion of work.

Excavation after breaking of RCC portion of road for laying of underground 150 NB ‘B’ class MS pipe line for jointing the new underground pipe line with existing underground pipe line.

Providing and Fixing of HV Nozzles for new mulsifire system.

Supply & Fixing of standard quality Yellow Liquid Filled QB detectors (as per IS norms) of 790 centigrade for new mulsifire system.

Providing and installation of deluge valve of (HD fire protect make; as per IS norms) 150 NB for new mulsifire system.

Providing and Fixing of sluice valve 150 NB (as per IS norms) for new mulsifire system.

Providing and Fixing of Y-Strainer 150 NB (as per IS norms) for new mulsifire system.

Fixing of pylon support foundation grouting of foundation bolts for support and plastering etc. to complete the job.

Providing and Fixing of pressure gauge (0 to 16 Kg/Cm2) of Indfos/Danfos make (as per IS norms) for new mulsifire system.

Providing and Fixing of pressure switches of (0 to 16 Kg/Cm2) Indfos/ Danfos make (as per IS norms) for new mulsifire system.

Construction of mulsifire hut by providing, fixing AC sheet from roof top and all 04 side (Minimum 06mm thickness) for deluge valve, pressure gauge to prevent from avoid mal-operation of pressure gauge in rainy season alongwith GI/MS angle frame structure of size 10’x7’x7’ along with 2 coats of painting in PO Red color after applying of 1 coat of red-oxide primer required for completion of the job.

Modification of position of existing deluge valve of 100MVA -i&II 150 NB situated in proposed new 160MVA Bay by shifting their location to respective bay by cutting welding of input and output pipe as per technical specification for mulsifire system including cost of pipe etc..

Erection of following Structures as per instruction manual of various equipments & technical specification including shifting of the materials / equipments from Store to erection site in Switchyard including all other associated works for completion of erection work satisfactorily :

ATM Coloumn (132 KV) : 02 Set

BXM Beam (220 KV) : 01 Set

AXM Beam (132 KV) : 02 Set

CBT (220 KV Standrad Isolator) : 01 Set

BBL (132 KV Standard Isolator) : 02 Set

BCT (220 & 132 KV CT) : 09 Set

ALP (220 & 132 KV LA and Bus Post Insulator ) : 9 Set

Erection of following Equipment as per instruction manual of various equipments & technical specification including shifting of the materials / equipments from Store to erection site in Switchyard including all other associated works for completion of erection work satisfactorily :

245 Kv Circuit Breaker

220Kv Standard Isolator with support insulator

220Kv, C.T. 800/600/1 Amp

220Kv, C.T.junction box

198Kv Lightening Arrester with surge counter

132 KV circuit Breaker

120 KV L.A. with surge counter

132 KV C.T. 1000/800/1 Amp. with junction box

132 KV Standard Isolator (1 E/S) With support insulator

132 KV Post Insulator

220/ 132 KV Transformer control & relay panel SAS type as per tech. spcn of UPPTCL

Dismantling Existing Single Zebra Jack bus & Restringing Twin Zebra Bus of various lenth of Stringing of various three phase Jack Buses of 132 KV with Zebra conductor & different length of span as mentioned below. The work including cutting & bending of conductor, fixing of single / double bolted type fitting, suspension fitting, hoisting of disc insulator and shifting of material from store to site and all other associated work to complete the job satisfactorily as per drawing & tech. specification.

Stringing

132Kv Twin Zebra upper Jack Bus 160MVA span 36 meter

132Kv Twin ZebraJack Bus 100MVA span 24/30/36 meter

132Kv Twin Zebra Jack Bus 100MVA span 12Mtr

Dismantlng

132Kv Single ZebraJack Bus 100MVA span 24/30/36 meter

132Kv Single Zebra Jack Bus 100MVA span 12Mtr

Jumpering of Equipments of 220 Kv Transformer Bay with the help of 1 x Zebra/ Moose Conductor between 220kv Bus and T/F Equipments with suitable Clamps to be provided by the Department.

Jumpering of Equipments of 132 K.V. Transformer Bay with the help of 1 x Twin Zebra Conductors between Main Bus to T/F equipments with suitable Clamps to be provided by the Department.

Laying of Following size of Control Cables in the Cable trenches from Control & Relay Panels in Control Room to various Equipments, Junctions Boxes etc. in Switchyard as per Cable Schedule, its saddling with 25 x 3 mm size saddles including carriage of Cable Drums from Stores to laying site & shifting back to Stores and all other associated works to complete the job satisfactorily :

2 x 2.5 mm2 Control Cable

4 x 2.5 mm2 Control Cable

6 x 2.5 mm2 Control Cable

10 x 2.5 mm2 Control Cable

Termination of following size of Control Cables as laid above as per Cable Schedule including making necessary holes in Gland Plates or Boxes wherever required alongwith supply & fixing of Cable Glands of appropriate size & providing of Ferrules for each core of the Cables & its termination with crimping type Lugs of Dowell / Tension make and all other associated works to complete the job satisfactorily :

2 x 2.5 mm2 Control Cable

4 x 2.5 mm2 Control Cable

6 x 2.5 mm2 Control Cable

10 x 2.5 mm2 Control Cable

Fabrication of 3 M long Electrode with 36 mm dia. M.S. Rod having 150 mm long conical shape, piercing it vertically inside the ground with top 700 mm below ground level, Cutting straightening, laying 75 x 10 mm size M.S. Flat 700 mm below inside ground for L.A. shielding and its welding with Earthmat; Cutting straightening, laying 700 mm below inside ground & above ground of 75 x 10 mm size M.S. Flat for earthing of C.B. and 50 x 6 mm M.S. Flat for earthing of Aux. Structure & other Equipments, Marshalling Box, Junction Box etc. including welding with main Earthmat and with the object to be earthed, excavation of trenches, its back filling, painting and all other associated works to complete the earthing work satisfactorily excluding the cost of M.S. Rod :

Making of Electrodes 3.0Mtr long 150mm in conical shape

198Kv &120Kv LA rectangular shape by 6 Electrodes

Laying of 75 x 10 mm M.S. Flat

Laying of 50 x 6 mm M.S. Flat

Providing and Fixing of Following items:-

Bolted Type single tension fitting made of aluminum alloy for Twin ZEBRA Bundle conductor with Turn Buckle 250mm spacing suitable for each disc Insulator Comprising 1×10Discs with hardware set as per technical specifications

Bolted Type single tension fitting for Twin ZEBRA Bundle conductor without Turn Buckle 250mm spacing suitable for each disc Insulator Comprising 1×10Discs with hardware set as per technical specifications

Bolted Type single tension fitting made of aluminum alloy for Single ZEBRA conductor suitable for disc Insulator with hardware set as per technical specifications

Bolted Type single suspension fitting made of aluminum alloy for Twin ZEBRA Bundle conductor 250mm spacing suitable for each disc Insulator Comprising 1×11Discs with hardware set as per technical specifications

PG clamp made of aluminum alloy Suitable for Z-Z with 4 Nos HDG Bolt Nut & Washer as per specifications

PG clamp made of aluminum alloy Suitable for T-Z with 4 Nos HDG Bolt Nut & Washer as per specifications

Bus post Clamp for ZEBRA conductor with HDG Bolt Nut & Washer as per specifications

Spacer 250mm made of aluminum alloy ZEBRA conductor with HDG Bolt Nut & Washer as per specifications

U Bolt 20mm Dia 200mm long 100mm threaded with 3Nos Nut & 2 Nos washers

Gupta Elect and Engg Works

M/S SATKAR TRADERS