SPECIAL REPAIR/REPLACEMENT OF BER TRANSFORMER AT OLD CANTT UNDER GE EAST) PRAYAGRAJ.

Supply, installation, testing and commissioning of transformer step down, copper wounded, outdoor type complete with standard fittings, HT 11 KV 3 phase , LT 433 Volts, 3 phase , 4 wire, 50 HZ, 500 KVA capacity core type double copper wound, oil immersed naturally cooled, oil naturally Air natural (ON AN) with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) , in accordance with victor group DYn-11 with natural, brought out on secondary side (LVside) and having tapping at ± 2.5 % & ± 7.5% on HV side to be charged by means of hand operated off load tap changer gear. The maximum temp rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continous full load run on an ambient temperature of 40 degree celsius. The transformer shall be EEL 3 as per IS 1180 (Part-1) 2014 and shall comprises of the following. (a) Three Nos porcelain bushing suitable for 11 KV on HV side complete with copper rods, nuts and washers. (b) One cable box on LT side (secondary side) consisting of four Nos porcelain bushing with copper rods, complete with nuts and washers with cable glands.

All as per Item No.1 above but for Transformer Capacity 250 KVA.

All as per Item No. 1 here in before but for Transformer Capacity 200 KVA.

All as per Item No 1 here in before but for Transformer Capacity 160 KVA.

All as per Item No.1 here in before but for Transformer Capacity 100 KVA.

M&L for earthing complete with galvanised steel earth plate electrode 60cmx60cmx6 mm thick buried directly in ground.(earth pit not less than 2.25 mtr deep below normal ground level) with top edge of plate not less than 1.5 mtr below ground level connecting to galvanised strip 32x6mm as earth lead by means of bolts, check nuts and washers of GI and earth wire protected by provision of GI pipe light grade,40mm bore including provn of concrete pit in PCC (1:2:4) type B-1 using 20mm graded crushed stone aggregates with 40mm thick cover of RCC (1:2:4) reinforced with XPM (weight not less than 4 KG/Sqm) and frame of angle iron 25 X 25 X 3mm with lugs 2 Nos and with 6mm dia MS bar handle made to shape, GI medium grade 20mm bore pipe for watering perforated at bottom 1.75 mtr long placed on top edge plate, common salt and charcoal filling, test point made out of phosphorous bronze with fixing arrangement, funnel, wire mesh and earth work in hard/dense soil, returning filling in and removal of surplus soil to a distance not exeeding 50 mtr, all as per electrical plate No 3 of SSR 2009 Part-I and connection all as specified and testing on completion.

Supply, fixing ( in replacement ), connecting to electrical system & testing of LT panel board ,cubical type for out door use, made out of 3.15 mm thick CRCA sheet factory made, totally enclosed of suitable size and supported with 4 Nos MS Angle legs , duly painted with two coats of powder coated paint over one coat of red oxide primer effectively PVC gaket and sealed mounted on PCC blocks double door type with locking arragnedment with handle at front and openable at front & back both side with required hinges heavy duty, compartemtalised suitably including provision for tapping incoming & outgoing electric connections with suitable size of aluminium lugs glands and comprising of the following accessories :- (a) High conductivity aluminium busbar (Set of 4 strips), 4 Nos TPN of rating 630A ,(RYB) for 3 phase and 1 No for neutral mounted on DMC support with heat shrink sleeve-1 Set. (b) Phase indication lamp, LED type(set of 3) -1 Set (c) Display multi functional panel meter with CTs etc : L&T/Seimens/Schneider (d) Grouting of panel including earth work as required PCC (1:3:6) type D-2 using 20 mm gradeded stone & plastering with (1:4 )cement sand etc complete. (e) INCOMMING: MCCB 4 Pole 630 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 01 Nos. (L&T/ABB/C&S) (f) OUTGOING: MCCB 4 Pole 400 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 01 Nos. (L&T/ABB/C&S) (g) MCCB 4 Pole 250 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 02 Nos. (L&T/ABB/C&S) (h) MCB TPN (4 Pole) 10KA B Curve 100 Amp 415 volt : 01 Nos.(L&T/ABB/C&S)

Supply, fixing ( in replacement ), connecting to electrical system & testing of LT panel board ,cubical type for out door use, made out of 3.15 mm thick CRCA sheet factory made, totally enclosed of suitable size and supported with 4 Nos MS Angle legs , duly painted with two coats of powder coated paint over one coat of red oxide primer effectively PVC gaket and sealed mounted on PCC blocks double door type with locking arragnedment with handle at front and openable at front &back both side with required hinges heavy duty, compartemtalised suitably including provision for tapping incoming & outgoing electric connections with suitable size of aluminium lugs glands and comprising of the following accessories :- (a) High conductivity aluminium busbar (Set of 4 strips), 4 Nos TPN of rating 400 A ,(RYB) for phase and 1 No for neutral mounted on DMC support with heat shrink sleeve-1 Set. (b) Phase indication lamp, LED type(set of 3) -1 Set (c) Display multi functional panel meter with CTs etc : L&T/Seimens/Schneider (d) Grouting of panel including earth work as required PCC (1:3:6) type D-2 using 20 mm gradeded stone & plastering with (1:4 )cement sand etc complete. (e) INCOMMING: MCCB 4 Pole 320 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 01 Nos. (L&T/ABB/C&S) (f) OUTGOING: MCCB 4 Pole 250 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 01 Nos. (L&T/ABB/C&S) (g) MCCB 4 Pole 160 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 02 Nos. (L&T/ABB/C&S) (h) MCB TPN (4 Pole) 10KA B Curve 100 Amp 415 volt : 01 Nos.(L&T/ABB/C&S)

Supply, fixing ( in replacement ), connecting to electrical system & testing of LT panel board ,cubical type for out door use, made out of 3.15 mm thick CRCA sheet factory made, totally enclosed of suitable size and supported with 4 Nos MS Angle legs , duly painted with two coats of powder coated paint over one coat of red oxide primer effectively PVC gaket and sealed mounted on PCC blocks double door type with locking arragnedment with handle at front and openable at front &back both side with required hinges heavy duty, compartemtalised suitably including provision for tapping incoming & outgoing electric connections with suitable size of aluminium lugs glands and comprising of the following accessories :- (a) High conductivity aluminium busbar (Set of 4 strips), 4 Nos TPN of rating 400 A ,(RYB) for phase and 1 No for neutral mounted on DMC support with heat shrink sleeve-1 Set. (b) Phase indication lamp, LED type(set of 3) -1 Set (c) Display multi functional panel meter with CTs etc : L&T/Seimens/Schneider (d) Grouting of panel including earth work as required PCC (1:3:6) type D-2 using 20 mm gradeded stone & plastering with (1:4 )cement sand etc complete. (e) INCOMMING:MCCB 4 Pole 250 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 01 Nos. (L&T/ABB/C&S) (f) OUTGOING: MCCB 4 Pole 200 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 01 Nos. (L&T/ABB/C&S) (g) MCCB 4 Pole 160 Amp, 415 volt, adjustable type, 36 KA breaking capacity : 02 Nos. (L&T/ABB/C&S) (h) MCB TPN (4 Pole) 10KA B Curve 100 Amp 415 volt : 01 Nos.(L&T/ABB/C&S)