Installation of 132 33 KV 40-20 MVA Transformer at 132 KV Ss Hasayan under ETD II Aligarh

Amount

Erection of following equipments including their shifting from storage place at the sub station to erection site and fixing of associated materials like clamps connectors, fittings etc.

Installation & Erection of new RTCC Panel of 40 MVA transformer after shifting of the old RTCC Panel from control room and new RTCC panel from storage place at sub station to control room and the earting of the RTCC Panel.

Erection of 132 KV LA and other associated works.

Dismentalling of 132 KV LAs with associated works.

Dismentalling of 20 MVA Transformer including its radiators, conservator tank turrets, HV/LV/Neutral bushings, connection pipe lines, cooling fans OLTC Drive mechanism box marshaling box, OTI , WTI, Capilary tubes etc.after draining of transformer oil upto required level.

Shifting of main tank of the 20 MVA transformer from its plinth to suitable space in yard as per instruction of supervising engineer.

Shifting of main tank of the 40 MVA transformer to its plinth from place of unloading point (Up to 20 Mtr.) including turing of the tank as required.

Complete erection of the 40MVA Transformer including its radiators, conservator tank turrets, HV/LV/Neutral bushings, connection pipe lines, cooling fans OLTC Drive mechanism box marshaling bos OTI , WTI, Capilary tubes and its associated works.

Commissioning of the air cell in conservator tank of above 40 MVA T/f by providing and filling of dry N2 in it up to specified pressure (as per requirement)

Jumpering of equipments of 40MVA Transformer bay (LV and HV side) with the help pf ACSR panther conductor or ACSR Mosse conductor as required after due cutting of conductors of appropriate size to connect the bus bar conductor of main bus & tranfer bus with equipements, transformer etc and equipment to equipement wiht the keep of suitable clamps/connectors including, cutting pending shaping etc of the conductor as per site requirement.

Carriage of 20KL Capacity Oil Storage Tank on suitable Vehicle from Designated Primary Sub Station to 132KV SubStation Hasayan, Hathras (includiug its Loading. and Un-Loading with the help of Suitable Capacity' Crane, with all due Care of Safty & Precaulions during Loading, Carriage and Un-Loading etc). as well a carriage of 20KL Capacity oil storage tank on suitable vehicle from 132 kv substation Hasayan to designated substation after completion of work (including its loading and Un-loading with the help of suibable capacity crane with all due care of sefety & precautions during loading carriage and un-loading etc).

Draining of the transformer oil form the above 40MVA transfomer into oil tanker If required

Centrifuging of the transformer oil filled in oil tanker un-interrupeted till the desired BDV value of the oil is achieved filing of centrifuged transformer oil into tank and radiators,of the above 40 MVA Transformer from the oil tanker then centrifuging & circulation of the tranformer oil in transformer with the help of centrifuging machine un-interrupted till the desire BDV in values of the transfomer oil and IR, dew point ,water content values are achieved including recording of the paramereters such as tempreature vacuum insulation rexistance BDV, etc at every 1 Hrs.

Transformer oil sample collection, testing of transformer oil at CPRI/ERDA/Other lab Noida/Bhiwadi & finishing test report for :- a- Dissolve Gas Analysis test-01 Nos. b- Breakedown Voltage Test-01 Nos. c- Water content

Making of delta for neutral earting by fabrication of 3 nos 3 meter long electrodes of 36/40 mm ida M.S round bar its piercing under the ground at equal diatance of 1 meter at 700 mm depth by digging of earth and connecting all the 03 no electrodes with 75mmx10mm size M.S Flate and taking out the M.S Riser by cutting. bending welding etc, of the M.S Flate (1 Job per detla) (If required)

Earthing of equipment by cutting straightening , bending, laying up to 700mm below inside ground & above ground of following size M.S Flate for diagonal/double earthing of the main & aux. structure, equipments structure, transformer body, OLTC pennel, Marselling box and its neutral point including welding with main earth met and with object to be earthed, excavation of trenchs, soil its back filling to compleat the work. etc with one coat of red oxide then two coat of of green enameld good quality paints as per detail below:

1) 75x10mm size MS Flat

2) 50x6 mm xize MS Flate

Laying of following sizes control cables in cable trenches from transformer control & relay panel ABT Meter cubicle RTCC panel in control room to equipments like transformer T/F marshalling box 132 KV Circuit breaker CT, PT ETC in swichyard as per cable schedule including shiftiing of cables in drums form storage place at the sub station to erection site and shifting back the balance cables to stores at the sub station .

2C X 2.5 sqmm

4C X 2.5 sqmm

6C X 2.5 sqmm

10C X 2.5 sqmm

Termination of following sizes laid control cables extending D.C Supply from DCDB and A.C supply from ACDB to TBC panel & equipments (like CB etc) including drilling of holes, providing & fixing of cable glands, ferrules & crimping type lugs. Including shiftiing of cables in drums form storage place at the sub station to erection site and shifting back the balance cables to stores at the sub station.

2C X 2.5 sqmm

4C X 2.5 sqmm

6C X 2.5 sqmm

10C X 2.5 sqmm

Electrical safety processing fee needed for providing all relevant safety clearance documents from electrical safety deparment for energization of the above commissioned 40MVA transformer and its associated bays (amount in approximation)(Note : the amount payable is actual rate of challan or quoted rate, whichever is lower)

Testing of following tests with associated work by NABL approved company/firm on Transformer at the substation from where transformer is to be dispatched with reputed and callibrated testing equipments and providing results in standard format.

Tan delta and capacitencemesuement of Bushing. Tan delta and capacitencemesuement of winding.

Sweep frequency Response Analysis (SFRA)

Truns ratio measurment on all taps.

Winding resistance measurement at all taps.

Insulation resistance including polarisation index Insulation resistance test on core-frame

Short circuit test on low voltage on three taps

Magnetising current test on low voltage on three taps

Magantic balance on low voltage

Vector group test

Loading of 40MVA T/F tank including all accesssories on trailor/trucks. The job include jacking the transformer tank for placing the wooden sleepers under the tank and simultaneously lifting the tank by jacking and placing sleepes continusaly under the tank till the wooden platefrom comes in the allignment of trailor bed and then shifting the tank from wooden platefrom to trailor bed. removal of rails etc from the under the tank proper tighning of tank on trailor bed with the help of wire rope and heavy turn buckle for safe trasporatation.

Unloading the 40MVA T/F tank including all accessories form trailor/trucks and there proper stacking at the desiganate. The job includes opening of laces, jacking the transformer tank from placing the rails, under the tank, shifting it to wooden sleepes plateform to be praperied adjacent to the trailor, removing the rails from under the tank on wooden plateform of sleepers lowering the tank towerds grouds by slowely removing the sleepes from under the tank.

Safe carriage of 132/33 KV, 40MVA Transformer from 220 KV S/s Sikandra, Agra to 132 KV Substation Hasayan Hathras. (Distence Aprox-130KM). The insurance shall be got done by contractor as per direction of supervisining engineer and expenditure born by the contractor.

Supply component :

Supply of 75x10mm MS Flat for Grounding/Earthing System

Supply of 50x6mm MS Flat for Grounding/Earthing System

Supply of 40mm dia MS electrode of 3 metre length

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