FOR THE WORK OF ERECTION OF 200MVA 400/132 KV TRANSFORMER ALONGWITH ALL ASSOCIATED WROK AT 400KV S/S KASARA-MAU UNDER ELECTY. 400KV S/S DIVISION, KASARA-MAU.

Laying and Jointing PVC Pipe. Heading

Work of transformer Erection of 200MVA 400/132/33KV Transformer Shifting of Main tank of 200MVA T/F form storage place to plinth upto 20Meter distance.

Additional shifting of 200MVA T/F@ 5 mtr per job.

Providing of Dry Air at the time of opening of blanking plate for erection of 200MVA Transformer Main Tank and filling of dry air of dew point-40 C or better for completion of work. The work shall include connecting pipe as required for measurement of dew point values of dry air.

Complete erection of 200MVA Transformer by erection of radiator, conservator tank, all bushing, their turret, connecting oil pipe, cooling fan Motor drive mechanism of tape changer, RTCC panel, Oil pumps and associated oil pipelines etc. to complete the job satisfactorily including Vacuuming the main tank of the 200MVA Transformer and sustaining the required vacuum for complete removal of the moisture in main tank. Then 1st filling of oil and topping up of transformer oil in tank, radiator, oil pipe lines, conservator tank etc. and attending the oil leakage if any and all other associated works for satisfactorily completion of work no t&P shall be provided by the department.

Complete evacuation of 200MVA 400/132KVTransformer main tank and filling of Dry Air of dew point-40 C or better in vacuum up to pressure of 0.25 Kg/ Cm2 and the again evacuation of the transformer tank after required interval approx. 12-24 Hrs. using vacuum plant the work shall include connecting pipes of machine as required, measuring dew point value of dry air during every cycle (01 Job is defined as complete cycle of evacuation, filling and maintaining of dry air in the transformer main tank) till the required value is achieved in the supervision of supervising engineer.

Create the vacuum inside the Transformer tank and sustain it for 24 Hrs.filling the oil step by step in 200MVA 400/132KV Transformer.

Filling the Transformer oil in oil tanker from drums by centrifuging machince to increase the BDV value and water content value less than 05 ppm. (02No. Oil tankers will be provided by the contractor free of cost) and circultaion of transformer oil of 200MVA transformer in transformer tank or oil tanker by connecting centrifuging machine to be provided by the contractor. Taking BDV value of oil and IR values periodically till the required value. The water content value less than 05 ppm is achieved as per direction of supervsing engineer.

Sampling and testing of transformer oil at CPRI or any other NABL accredited testing lab including cost of transportation of samples in standard sampling bottles Samples to be taken at following interval (as per actual requirement) a) Before filling in transformer main tank and OLTC-04 Samples. b) Before filling in cooling bank -1 Sample. c) Before charging - 5 samples from top and bourn of main tank. R,Y&B Phase OLTC respectively. Following tests are to be conducted for each sample- a) Breakdown voltage b) Moisture Content. c) Tan Delta of Oil d) Resistivity e) Interfacial Tension. f) Particle count. g) Sediment (Sludge) h) Flash Point i) Neutralization Value (Acidity) j) Dissolved Gas Analysis (11 No. Gas)

Fresh earthing of 200MVA Transformer body from two different points to Neutral bushing of Transformer with 75x10mm/50x6mm MS Flat at a depth of 2200mm in the ground along with complete earthing of rediator, Marshling Box, OLTC Cubicle and other points at 2 Points Neutral Bushing of transformer including painting by Green color paints in 2 coats.(M.S.Flat will be provided by the Contractor at his own cost) MS Flat 75x10mm

MS Flat 50x6mm

Erection of 400KV Lighting arrestor along with its accessories.

Erection of 132KV Lighting arrestor along with its accessories.

Delta Earthing for 400KV Lighting arreaster by 40mm dai 150mm long conical shape its placing inside the ground in rectangular shape all 06 No. electrode with 75x10mm MS Flat 700mm depth. Connecting with the same with earthmate at two places.(M.S.Round Bar & Earth Strip will be provided by the Contractor at his own cost)

Delta Earthing for 132KV Lighting arreaster by 40mm dai 150mm long conical shape its placing inside the ground in rectangular shape all 06 No. electrode with 75x10mm MS Flat 700mm depth. Connecting with the same with earthmate at two places.(M.S.Round Bar & Earth Strip will be provided by the Contractor at his own cost)

Delta earthing for 200MVA Transformer neutral of transformer by 40mm dia 150mm long conical shape its placing inside the ground in trianagular shape all 03 no electrode with 75x10mm MS flat 700mm deepand connecting with same with earthmat at two places.(M.S.Round Bar & Earth Strip will be provided by the Contractor at his own cost)

Jumpering of 200MVA Transformer HV & LV side by twin moose ACSR conductor.

Connection of 200MVA T/F with laying of cable and termination of between turrets, WTI, OTI, Buchoolz relays, PRV, cooling fans, pumps OLTC, Marshalling Box etc. with proper ferruling as per drawing. All required gland, lug, ferrul, tag providing by contractor.

Remodelling of mulsifire for 200MVA 400/132/33KV Transformer by using and laying of existing pipe lines of size 25mm, 40mm, 50mm, 65mm& 80mm GI pipe lines in overhead and using other useful components like deluge valve, QB detector, High Velocity Nozzle used in mulsifyre installed at existing 200MVA Transformer as per specification and site requirement, complete with associated work.

Supply & laying of following 'B' Class (IS:1239) GI Pipe Lines overhead/ underground in addition to above item (1A) as per site requirement specification and complete with associated tees, Elbows/ Bends, sockets, flanges etc. by due cutting, bending, fabricating and welding etc. of pipe lines including digging of earth trench 1 meterbelow ground level as well as below the bed of cable trenches & road crossing alongwith anticorrosive treatment by bituminous painting on outer surfaces and wrapping hot dipped bitumen jute in 2 layers of underground pipe lines & 2 coats painting of overhead pipe lines in P.O. red colour after applying of one coat of red oxide primer, Finally & levelling of earth including repairing / concreting of road crossing as per details below: Supply & Laying of 25mm dia 'B" Class GI pipe

Supply & Laying of 40mm dia 'B" Class GI pipe

Supply & Laying of 50mm dia 'B" Class GI pipe

Supply & Laying of 65mm dia 'B" Class GI pipe

Supply & Laying of 80mm dia 'B" Class GI pipe

Supply & Laying of 150mm dia 'B" Class GI pipe

Supply & erection of Pylon support of M.S. Pipe 'B' Class 80mm dia with angle iron, U Bolts, Flanges & nuts & bolt for new Mulsifire System

Construction of Pylon support base for new Mulsifire System using material of existing shed for deluge valve of 200MVA

Supply & fixing of pressure gauges for new Mulsifire System.

Supply & fixing of pressure switches for new Mulsifire System.

Supply & fixing of sluice valve 150mm dia for new Mulsifire System.

Supply & fixing of QB detectors of 79 C for new Mulsifire System addtion to detectors of existing mulsifire.

Supply & fixing of HV Nozzles K-18x80 for new Mulsifire System.

Supply & fixing of 150NB Deluge valve for new Mulsifire System.

Dismantling and shifting of NCT with accessories for 33KV tertiary bushing installed at 200MVA ICT-I with all equipment and structure.

Providing Electrical safety clerance from office of the director Electrical Safety Gomti nagar, Lucknow by submitting Electrical inspection fees though challan for Energisation of 01 No. 200MVA 400/132KV Transformer.