Replacement of 40MVA 132/33KV Transformer by new 63MVA 132/33KV Transformer alongwith other associated Works at 132KV Sub Station Bisauli, Budaun under E.T.D., Budaun

Amount

Replacement of 40MVA 132/33KV Transformer (BBL make) by new 63MVA 132/33KV Transformer (T&R make) alongwith other associated Works at 132KV Sub Station Bisauli, Budaun, with all Cost of Men, Misc. Consumables, Crane / Hydra, Hydraulic Jacks, Normal & Special T&Ps, Rails, Centrifuging Machine with Operator etc. Required for Satisfactory Completion of the Work, with all due Care of Safety & Precautions as per Technical Specifications and Direction of the Supervising Engineer, as per Details below :

(1) Carriage of 20KL Capacity Oil Storage Tank on suitable Vehicle from Designated Primary Sub Station within 120 Km Distance to 132KV Sub Station Bisauli including its Loading and Un-Loading with the help of Suitable Capacity Crane, with all due Care of Safety & Precautions during Loading, Carriage and Un-Loading etc.

(2) Dismantling of RTCC Panel of 40MVA Transformer after due Cutting of its Earthing, Disconnection of the Control Cables etc., then Shifting of the Dismantlled RTCC Pannel from Control Room to Stores at the Sub Station.

(3) Erection of new RTCC Panel of 63MVA Transformer after Shifting of the RTCC Panel from Storage Place at the Sub Station to Control Room, then Earthing of the RTCC Panel.

(4) Dismantling of the exiting 132KV LAs alongwith associated Structure, Installed in 40MVA Transformer Bay after due Cutting of its Earthing, Opening of Jumpers etc. (1 Job per LA alongwith associated Structure).

(5) Complete Dismantling of the Accessories of 40MVA Transformer including Opening of Jumpers, Removal of Earthing, Opening of Cable Connections, Draining Out the Transformer Oil Upto Required Level in 209 Lit. Capacity Oil Drums, Removal of Conservator Tank, Radiators, Pipe Lines, Bushings, Cooling Fans, Marshaling Box etc., then Fixing of Blanking Plates on the Radiators, Pipe Lines, Conservator Tank, Turret etc. (Blanking Plate including Bolts & Nuts, as Required shall be Provided / Arranged by the Department).

(6) Proper Packing of the HV / LV / Neutral Bushings of the above Dismantled 40MVA Transformer after Wrapping of Bushings with Polythene Sheet in Separate Wooden Cases / Crates.

(7) Shifting & Proper Stacking of all the Dismantled Items of the 40MVA Transformer i.e. Conservator Tank, Radiators, Pipe Lines, Bushings, Cooling Fans, Marshaling Box, Transformer Oil in Drums etc. at Safe Storage Place at the Sub Station (Approx. 90 Meter Distance).

(8) (a) Shifting of Main Tank of the Dismantled 40MVA Transformer from its Plinth upto 20 Meter Distance including Turning of the Tank, as Required.

(b) Additional Shifting of Tank of the above 40MVA Transformer upto Approx. 70 Meter Distance. (1 Job for every 5 Meter or Part thereof)

(9) (a) Shifting of Main Tank of the 63MVA Transformer to its Plinth from Place of Unloading upto 20 Meter Distance including Turning of the Tank, as Required.

(b) Additional Shifting of Tank of the above 63MVA Transformer upto Approx. 80 Meter Distance. (1 Job for every 5 Meter or Part thereof)

(10) Shifting of Complete Accessories of the above 63MVA Transformer including Oil in Drums and Bushings Packed in Wooden Cases / Crates from Storage Place at the Sub Station to Erection Site in Switchyard (Approx. 100 Meter Distance).

(11) Complete Erection of the 63MVA Transformer including its Radiators, Conservator Tank, Turrets, HV / LV / Neutral Bushings, Connecting Pipe Lines, Cooling Fans, OLTC Drive Mechanism Box, Marshaling Box, OTI, WTI, Capillary Tubes etc.

(12) Commissioning of the Air Cell in Conservator Tank of the above 63MVA Transformer by Providing & Filling of Dry Nitrogen in it Upto the Specified Pressure.

(13) Centrifuging of the Transformer Oil in Oil Storage Tank with the help of Ultra High Vacuum Oil Filtration Plant after Filling of Oil in the Oil Storage Tank from Oil Drums, Un-interrupted till the Desired BDV Value of the Oil is Achieved and then Filling & Topping up of the Centrifuged Transformer Oil in above 63MVA Transformer as per Standard Procedure to Maintain Required Oil Level in the Transformer.

(14) Centrifuging / Dehydration of the Complete Transformer Oil Filled in 63MVA Transformer with due Circulation of Oil by Ultra High Vacuum Oil Filtration Plant, Un-Interrupted till the Desired BDV Value of the Oil is Achieved including Taking the BDV Values of Oil & IR Values of the Transformer Bushings, Periodically (every 2 hrs.) till the Required Value are Achieved including Attending the Oil Leakages, if any.

(15) Re-Termination of old Control Cables of the Dismantled 40MVA Transformer and its RTCC Panel with above new 63MVA Transformer and its RTCC Panel at both ends alongwith Re-Glanding, Re-Ferruling etc. as per new Cable Schedule.

(16) Laying of Following sizes Additional / New Control Cables for Commissioning of the above 63MVA Transformer as per Site Requirement : (a) 2 × 2.5 mm2

(17) Termination of Following sizes above Laid Additional / New Control Cables for Commissioning of the above 63MVA Transformer as per Site Requirement : (a) 2 × 2.5 mm2

(18) Making of Delta for Neutral Earthing by due Fabrication of 3 No. 3 Meter long Electrodes of 36 / 40 mm dia. M.S. Round Bar, its Piercing Under the Ground at Equal Distance of 1 Meter at 700 mm depth by Digging of Earth and Connecting all the 3 No. Electrodes with 75 mm × 10 mm size M.S. Flat and Taking out the M.S. Riser by due Cutting, Bending, Welding etc. of the M.S. Flat. (1 Job per Delta)

(19) Earthing of Main Tank, Marshaling Box, OLTC Drive Mechanism Box, Transformer Neutral etc. of the above 63MVA Transformer with the help of 75×10 mm / 50×6 mm size M.S. Flats, its Jointing with already Laid Earth Mat / Deltas at 2 Places with Necessary Modifications in Existing Support Structure for Earthing of the Neutral Bushing and then Painting of the Earthing Strips.

(20) Erection of 132KV LAs alongwith associated Structures in the above 63MVA Transformer Bay including Earthing of the LAs and associated Structures. (1 Job per LA alongwith associated Structure)

(21) Dismantling of Following Equipments / Items installed in 40MVA Transformer Bay alongwith associated Works like Opening of Jumpers, Cutting of Earthing & Opening of Control Cables Connections etc. : (a) Opening of Jumpers of 3 No. 33KV 800 / 1 Amp. CTs between CTs to C.B. (1 Job per Jumper)

(b) Cutting of Earthing of the above CTs and CT Junction Box.

(c) Opening of Cable Connections of the above CTs at Switchyard End.

(d) Dismantling of the above 3 No. CTs. (1 Job per CT)

(e) Dismantling of the old CT Junction Box.

(22) Erection of Following Equipments / Items in above 63MVA Transformer Bay alongwith associated Works like Termination of Control Cables, Earthing, Jumpering etc. : (a) Erection of new 3 No. 33KV 1250 / 1 Amp. CTs. (1 Job per CT)

(b) Erection of new CT Junction Box.

(c) Termination of Control Cables of the above CTs at Switchyard End.

(d) Earthing of the above CTs & CT Junction Box excluding the Cost of M.S. Earthing Strip.

(e) Jumpering of the above CTs between CTs to C.B. with Twin ACSR Moose Conductor with the help of old / new Terminal Connector including Shifting of the ACSR Moose Conductors from Stores at the Sub Station to Switchyard. (1 Job per Jumper)

(13) Jumpering of the above 63MVA Transformer as per Details below : (a) Jumpering with Single ACSR Panther Conductor and associated Terminal Connectors, P.G. Clamps etc. between HV side Bushings to 132KV Jack Bus Bar Conductors including all associated Equipments in between.

(b) Jumpering with Twin ACSR Moose Conductor and associated Terminal Connectors, P.G. Clamps etc. between LV side Bushings to 33KV CTs including all associated Equipments in between.

(24) Carriage of 20KL Capacity Oil Storage Tank on suitable Vehicle from 132KV Sub Station Bisauli within 120 Km Distance to Designated Primary Sub Station including its Loading and Un-Loading with the help of Suitable Capacity Crane, with all due Care of Safety & Precautions during Loading, Carriage and Un-Loading etc.

Meena Elect and Engg Works

MANAS ELECTRICALS