REPAIRS/MAINTENANCE TO STEP DOWN TRANSFORMERS, OCBS, FEEDER PANEL AND CONNECTED WORKS AT DGQA OFFICE COMPLEX VIKHROLI AND MD ACCN AT GHATKOPAR UNDER GE NORTH

Amount

M&L for filteration/ dehyderation of transformer oil from indoor/outdoor transformer including all VLE units at site by using mobile transformer oil filtration plant to achive required dielectric strength as directed. Testing of existing transformer oil before filtration and after filtration will be carried out and keep records. Top up transformer oil up to conservator level, connecting and testing of transformer on load for its smooth functioning all as specified and directed for capacity 400 KVA. Note:- Necessary test report for oil testing will be submitted by the contractor. Quoted rated is inclusive for all necessary arrangment of bringing filteration plant, empty barrels for storage of drain out trasformer oil etc as reqd at site. Top up of trasformer oil will be measured and paid seperately.

All same as per item No. 1 here-in-above but the transformer capacity 750 KVA.

Supply of transformer insulation oil conforming to IS 395-1983 having die electric strength minimum 60 KV/4mm including topping up in transformer's, OCB's and OFS etc complete all as specified and as directed by Engr-in-charge.

S&F in repairs of voltmeter, 0 to 500 Volts,AC, suitable for three phase, Analog type all as directed. Make: AE

S&F in repairs of Ammeter, Analog type, 0-300 Amps, AC, suitable for three phase all as directed. Make: AE

S&F in repairs, LT current transformer, 1100V, CT ratio 400/5, 10 VA and all as directed.

S&F in repairs, LT current transformer, 1100V, CT ratio 300/5, 10 VA and all as directed.

S&F in repairs, Indicator lamp assembly (solid state lamp) 240 volts, AC, as per existing sample R,Y,B complete set with LED including necessary connection all as directed.

M&L in repair for submain wiring complete with and 2 runs of 6.0 sqmm single core PVC insulated and unsheathed multistranded copper conductor cable 1100 Volts grade drawn through and including PVC conduit of size 20mm including all accssories and fixed on walls and 4.0 sqmm PVC multistranded copper conductor cable for earthing and connected to common earth dolly complete all as specified and as directed by Engr-in-Charge.

S & F in repairs double door, sheet metal enclosure, powder coated for MCB DB SPN 4 way fitted with neutral link, earth bar, DIN rail and 200 amps rated bus bar 415 volt conforming to IS 13032-1991 complete all as specified and as directed by Engr-in-charge.

S & F in repairs MCB SPN, 32 Amps to 63 Amps, 240 volts, breaking capacity 10 KA complete all as specified and as dircted by Engr-in-charge.

S & F in repairs MCB SP, 5 Amps to 32 Amps , 240 volts, breaking capacity 10 KA complete all as specified and as dircted by Engr-in-charge.

M&L for Preparation of old painted steel surfaces of any description over 10cm in width or grith, not otherwise described and applying one coat of synthetic enamel paint complete all as specified and directed by Engr-in-Charge.

M&L for Preparation of old painted surfaces of transformer of any capacity and applying one coat of synthetic enamel paint complete all as specified and directed by Engr-in-Charge.

S & F electrical insulation rubber matting of size 2 mtr X 1 mtr X 25 mm for Sub Stn, confirming to IS 15652 - 2006 all as specified and directed.

Supply only hand gloves of good quiality ISI marked 15 KV . (Pair of two Nos ) Make: Jaipuria brothers.

M & L of danger notice plate of 1.6 mm thick as per IS : 2551 of 1982 mild steel sheets vitreous enamelled white with letters figures and conventional skull and bones in signal red colour and fixed with MS clamps , bolts , and nuts of approved size cms x 20 cms including taking down of old one.

M & L for earthing complete with galvanised steel earth plate electrode 60x 60x 6.3 mm thick, buried directly in ground (earth pit not less than 2.25 mts deep below ground level) with top edge of the plate not less than 1.5 below normal ground level, connected to and including GIearth strip 32 x 6 mm thick to extent 7.5 mtr as GI strip by means of bolts nuts check nuts and washers of galvanised iron or steel all as shown in electrical plate No 3 of SSR part- 2009, including CI covers with angle irong frame,necessary earth work & excavation in any strata, returning fillings & removal etc, inluding watering pipe 20 mm dia med grade galvanised steel 1.5 M long with MS funnel/ wire mesh, with & including protection pipe 15 mm dia light grade galvanised steel from earth plate, M&L PCC forundation in mix 1:4:8 type D2 M&L PCC in mix 1:2:4 type - B2 for earth pit with CI cover all as specified or indicated including testing on completion.

Taking down tranformer from the site and transporting to reputed workshop for necessary rewinding/ repair upto 400 KVA capacity and re installation after repair , reconnection and commissioning complete as directed.

Opening the top cover carefully for upto 750 KVA indoor /outdoor type transformer,transporting to workshop, decanting the transformer oil in clean drum , taking out core assembly and burnt winding coil of LT side and rewinding with existing guage and size of copper conductor wire , with proper insulation , vanishing , heating inside heat chamber upto required insulation level as per manufacturer instruction. Cleaning the chamber of the transformer and lowering down the core assy of tranformer , connecting tap changer wiring , filling of transformer oil after dehydration and testing complete , transporting to site and , connecting , commissioing after installation all as directed.

S & F in repair for replacement of Breather unit with superior quality complete filled with blue colour silica jel and oil, suitable for 750/400 KVA transformer including taking down old one.

Disconecting & takingout non functional OSF/OCB of any description and any make dismantling/opening of the OSF/OCB for servicing/overhauling, taking out and removing unserviceable/defective parts including cleaning and servicing, greasing, oiling of the parts etc and replacment of unserviceable parts with new one, reassembling the OSF/OCB after overhauling/servicing and its testing compleat all as specified and directed by engr-in-Charge. Note: the quoted rates by the contractor includes for fixing the serviceable parts in position in replacment of unserviceable with new part.

S & F in repair integral decorative LED luminarie with IP 65 degree of protection type light fitting connection with three core copper flexiable cable 16/0.20 mm from ceiling rose to fitting including bracket made out of 40 mm bore GI pipe,light grade,not less than 1.2 mtr long,bend to shape suitable for fixing street light fitting with suitable size MS clamps,bolts,nuts,washers etc. complete all as spd : Make: SHAKTI Cat part no. SZPSLMM045.

Supply and replacing in repair of transformer LT side bushing/insulator with neoprene washer with terminal studs and bolt, nuts suitable for 400 KVA, complete.

M & L for painting of OSF/OCB from outside with two coats of synthetic enemel gray paint after scraping old painted surfaces, oil marks/dust etc complete including down of surface of front side OSF/OCB panel through black colour paint i.e .incoming, outing, feed from to etc) complete all as specified and as directed by Engr-in-Charge.

S&F in repairs MCCB TPN 100 amps, 415 Volts, 50 Hz,16 KA fixed type including all connections and testing complate all as specified and as directed by Engr-in-charge.

S&F in repairs MCCB TPN 200 amps, 415 Volts, 50 Hz, 25 KA adjustable type including all connections and testing complate all as specified and as directed by Engr-in-charge.

S&F in repairs MCCB TPN 250 amps, 415 Volts, 50 Hz, 25 KA adjustable type including all connections and testing complate all as specified and as directed by Engr-in-charge.

Shree Ayyappa Engineering