Installation of 500 MVA Transformer and its associated work

Transformer Erection

Safe loading, carriage and unloading of 200 nos. empty 209 ltr. Oil drums by private vehicles from 400 kV s/s Agra to 400 kV S/s Aligarh. (distance appx. 100 kM.)

Safe filling of transformer oil in 209 ltr. Oil drums from 2*20 kL oil tanks at 400 kV S/s Aligarh with the help of proper T&P for without splashing of oil.

Safe Loading, Carriage and unloading of Transformer oil appx. 116 KL in 209 ltr oil drums without leakage from 400 KV S/s Aligarh to 400 KV S/S Agra (distance appx. 100 kM.)

Safe Loading, Carriage and unloading of 400/220 kV, 500 MVA CGL make T/F accessories like Radiators cooling fans, marshaling box, RTCC panel, connecting pipes with oil pumps (remaining material left at 400 kv S/s Aligarh) from 400 KV S/s Aligarh to 400 KV S/S Agra (distance appx. 100 kM.)

Preparation of interconnection control wiring diagram for 500 MVA CGL make transformer in respect of existing control wiring of old 500 MVA Toshiba make transformer including marshalling bos, RTCC panels etc.

Connection of 400/220 kV, 500 MVA CGL make Transformer RTCC panel to marshaling box with existing cables (also laying the additional cables if required of appropriate sizes) of cable and termination in between with proper ferruling as per drawing.

Fresh earthing with 75 x 10/50 x 6 mm M.S. flat 2200 mm deep of 500 MVA T/F body from two different points to neutral bushing of transformer along with complete earthing of radiator, marshaling box, OLTC cubical and other point at two points neutral bushing of T/F including painting by green paint in two coats (MS Flat arrange by department)

Proper erection of 4” dia IPS AL. tube to connect 400 kV CTs, LA’s and transformer HV side bushing of 400/220 kV, 500 MVA CGL make T/F of different type connectors, jumper and clamps/PG clamps etc. including proper banding and jointing of 4” IPS Al. pipes and all other associated works to complete the job.

E-mulsifier

Dismantling of all existing water & air pipe lines of emulsifier system of old 500 MVA (TOSHIBA make) ICT-II & its safe shifting of JE's store.

Supply, Installation/erection, testing & commissioning of emulsifer system of high velocity automatic water spraying system for 500 MVA T/F (CGL make) inlcluding laying of fire detection/water pipe lines, Quartzoid bulbs, HVWS nozzles etc along with all material complete in all respect as per specification with details as below:'

Supply & laying of different sizes of MS pipe 'B' class for fire water pipe lines/supports as per IS specification (IS code-1239) complete with elbow, tee socket, reducer etc. with anticorrosive treatment with details as below.

Supply and laying of different size of GI pipe 'B' class for fire detection/water pipe lines as per specification (IS code-1239), complete with elbow, tee, socket, reducer etc with details as below:

Supply & installation of different size of flanges as per IS-1538 inlcuding proper butt welding with pipe & proper packing & coupling with nut & bolt (1 set = 2 nos. flanges) etc with details as below:

Supply & installation of 80 NB GI pipe for support with round clamp at top & flanges at bottom.

Supply & installation of panel base support.

Supply, installation & commissioning of high velocity water spray nozzels. Flow capacity 3.5 kg/cm, spray core angle 90 degree

Supply, installation & commissioning of quartzoid bulb detectors (QBD) operate at 79 degree C, sensing at rated temp for actuating of the element 10-12 sec.

Supply, Installation & commissioning of 'Y' type strainer (Kartar/Sir/Kalpana/Agro make) of 150 NB dia working pressure 7 kg/cm

Gupta Elect and Engg Works

Meena Elect and Engg Works

Perfect Power Transformer Associates