SPECIAL REPAIR REPLACEMENT OF TRANSFORMERS AND ALLIED WORKS AGAINST BER UNDER AGE EM II UNDER GE (U) SECUNDERABAD

Supply and installation, TESTING AND COMMISSIONING of double wound copper transformer step down, outdoor type, voltage ratio 11000/433V complete with standard fittings, primary voltage of HT 11000 Volts and secondary LT 433 volts, 3 Phase 4 wire with frequency 50 c/s. Provided with 7 No of off load tappings on HT side to vary secondary voltage within range of +7.5% to - 7.5% (in steps of 2.5%), star delta connections with vector group of Dyn 11, Impedance of 5% and oil has to be filled as per IS:335 and color coating with one coat of primer and two coats of BS grey colour and losses all as per IS:1180 (Level - III) of capacity of 100 KVA including necessary plinth for installation of transformer including all connections, nuts and bolts, SUITABLE FOUNDATION OF SIZE COMPLETE all as specified and directed with the following accessories.

(a) Rating and terminal marking plate - 01 Nos (b) Earthing Terminal - 02 Nos (c) Lifting Lugs - 02 Nos (d) Drain Valve with blanking plate - 01 Nos (e) Filter valve with blanking plate - 01 Nos (f) Conservator - 01 Nos (g) Oil level indicator with minimum marking - 01 Nos (h) Dehydrating brather - 01 Nos (j) Air release device - 01 Nos (k) Thermometer Pocket - 01 Nos (l) Pressure release valve - 01 Nos (m) Roller unidirectional - 04 Nos (n) HV side bushing and LV side cable end box (o) Seperate brought out neutral terminal (p) Off circuit tap changer (q) 100mm dia stem type thermometer.

Supply and installation, TESTING AND COMMISSIONING of double wound copper transformer step down, outdoor type, voltage ratio 11000/433V complete with standard fittings, primary voltage of HT 11000 Volts and secondary LT 433 volts, 3 Phase 4 wire with frequency 50 c/s. Provided with 7 No of off load tappings on HT side to vary secondary voltage within range of +7.5% to - 7.5% (in steps of 2.5%), star delta connections with vector group of Dyn 11, Impedance of 5% and oil has to be filled as per IS:335 and color coating with one coat of primer and two coats of BS grey colour and losses all as per IS:1180 (Level - III) of capacity of 160 KVA including necessary plinth for installation of transformer including all connections, nuts and bolts, SUITABLE FOUNDATION OF SIZE COMPLETE all as specified and directed with the following accessories.

(a) Rating and terminal marking plate - 01 Nos (b) Earthing Terminal - 02 Nos (c) Lifting Lugs - 02 Nos (d) Drain Valve with blanking plate - 01 Nos (e) Filter valve with blanking plate - 01 Nos (f) Conservator - 01 Nos (g) Oil level indicator with minimum marking - 01 Nos (h) Dehydrating brather - 01 Nos (j) Air release device - 01 Nos (k) Thermometer Pocket - 01 Nos (l) Pressure release valve - 01 Nos (m) Roller unidirectional - 04 Nos (n) HV side bushing and LV side cable end box (o) Seperate brought out neutral terminal (p) Off circuit tap changer (q) 100mm dia stem type thermometer.

Supply, installation, testing & commissioning in renewal of totally enclosed feeder pillar outdoor type fabricated out of 3.15 mm thick CRCA sheet dust and vermin proof powder coated double door type (independent cabin including locking arrangement for each MCCBs/MCB, bus bar chamber enclosed complete suitable for operating on 415 Volt 50 Hz AC supply internally wired with copper conductor having legs 90 cms made out of 50x50x6 mm angle iron grouted on brick masonary platform upto 45 cms. Brick masonary platform should be 60 cms above the Ground Level. Comprising the following:- .Note:- (i) The panel shall be front operated with cable entry from the bottom with cable glands. Earth bus shall be part of the main feeder pillar. (ii) Fabrication of feeder pillar box to be done with 3.15mm thick CRCA Sheet (iii) Cost for construction of platform for panel of brick masonary work in CM 1:6 with foundation PCC 1:4:8 type D-2 including plaster work, PCC copping 1:2:4 (40 mm thick stone aggerate), deemed to be included in the item rate. No Extra payment will be made.(iv) MCCB's should be connected with extensions terminals at both side (incoming and outgoing).

(a) 01 set of TPN aluminium bus bar as per rating of MCCB of suitable length and of crossection as per design with colour codding. Bus bars shall be designed to with stand a fault level of 25 KA at 415 volts. (b) MCCB 4 pole 160 Amp, 25 KA -01 No as incoming (c) MCCB 4 pole 100 Amp, 16 KA -02 Nos as outgoing (d) MCCB 4 pole 63 Amp, 16 KA - 02 Nos as outgoing (e) MCB SPN pole 32 Amp, 10 KA -02 Nos as outgoing (f) MCB SPN pole 32 Amp, 10 KA - 02 Nos as outgoing (g) Multifunctional meter with suitable CT (h) Indicator Lamp-01 Set (Set of three)

Supply, installation, testing & commissioning in renewal of totally enclosed feeder pillar outdoor type fabricated out of 3.15 mm thick CRCA sheet dust and vermin proof powder coated double door type (independent cabin including locking arrangement for each MCCBs/MCB, bus bar chamber enclosed complete suitable for operating on 415 Volt 50 Hz AC supply internally wired with copper conductor having legs 90 cms made out of 50x50x6 mm angle iron grouted on brick masonary platform upto 45 cms. Brick masonary platform should be 60 cms above the Ground Level. Comprising the following:- .Note:- (i) The panel shall be front operated with cable entry from the bottom with cable glands. Earth bus shall be part of the main feeder pillar. (ii) Fabrication of feeder pillar box to be done with 3.15mm thick CRCA Sheet (iii) Cost for construction of platform for panel of brick masonary work in CM 1:6 with foundation PCC 1:4:8 type D-2 including plaster work, PCC copping 1:2:4 (40 mm thick stone aggerate), deemed to be included in the item rate. No Extra payment will be made. (iv) MCCB's should be connected with extensions terminals at both side (incoming and outgoing).

(a) 01 set of TPN aluminium bus bar as per rating of MCCB of suitable length and of crossection as per design with colour codding. Bus bars shall be designed to with stand a fault level of 36 KA at 415 volts. (b) MCCB 4 pole 250 Amp, 36 KA -01 No as incoming (c) MCCB 4 pole 200 Amp, 16 KA - 01 Nos as outgoing (d) MCCB 4 pole 100 Amp, 16 KA - 01 Nos as outgoing (e) MCCB 4 pole 63 Amp, 16 KA - 02 Nos as outgoing (f) MCB SPN pole 32 Amp, 10 KA - 02 Nos as outgoing (g) Multifunctional meter with suitable CT (h) Indicator Lamp-01 Set (Set of three)

M&L for earthing complete with GI earth plate electrode of size 60cm x 60cm x 6 mm thick burried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5m below the normal ground level connected with GI strip 32 x 6mm by means of bolts, nuts, check nuts & washers of galvanished iron steel including necessary excavation and earth work in any type of soil, removing surplus soil to a distance not exc 50m, with and including PCC chamber in PCC (1:2:4), type B1,using (20mm graded stone aggregate),"mild steel angle iron frame" made out of MS angle iron of size 40x40x6mm thick duly painted with two coats of synthetic enamel paint over one coat of red oxide zinc chrome primer hinged with and including 6mm thick CI cover with handle, watering arrangement with funnel internally secured with wire mesh with 20mm dia medium grade pipe for watering 40mm dia light grade, GI pipe for lead protection in and including alternate layers of charcoal dust and common salt complete all as shown in electrical "plate No '3' and connected to earthing test point all as specified and indicated including testing on completion including retrieving old GI earth plate, CI cover, GI pipes, angle iron frame from existing earthing complete all as specified and directed.

Supply , fixing , connecting and commissioning and testing Outdoor type (automatic and manual operation) power factor improvement panel of capacity 50 Kvar including interconnection with LT panel with appropriate size of electric cable for transformer (Outdoor/Indoor) type panel factory made, weather proof , dust and vermin proof suitable for 1100 V/440 V grade 3 phase 50 HZ AC supply floor mounted , fabricated out of 3.15mm thick CRCA sheet and having four Nos angle iron legs made out of 50 x 50 x 6mm 75 cm long angle iron below frame with front door and Side/Back opening having locking arrangement prewired with copper conductor PVC insulated flexible wire size 1.5 sq mm / extension strips and connected with suitable size thimbles , lugs duly painted with siemens grey epoxy powder coating after suitable chemical treatment , legs duly embedded in ground upto 30 cms in PCC 1:3:6 type C-1 (using 20 mm graded crushed stone aggregate) of suitable size including locking arrangement suitable for mounting , with required sheet metal enclosures, thimbles with on line monitring of Power Factor on web based application as specified and directed.

Incoming feeder:- A. Incommer MCCB 100- Amp , Three Pole, Termal based release with adjustable O/L ,Adj S/C Setting Front Face, 16KA rupturing capacity, Ics=100%Icu, Isolation with Positive Break Indication with Double Break Contacts, Standard Extended Rotary Handle, Spreaders, Phase Barrier.- 1 No B.Metering Section- Digital Ammeter (0-150)Amps, digital Volt Meter (0-500)Volts , RYB Indicating Lamps ,1 Set Control fuses, CTs. 3 C. Insulated Busbar of Aluminium of 100A Capacity for 3 phase,, fixed on Insulators, Busbar Should be PVC Sleeved with red. Yellow. Blue Colour, Busbar Support should be of smc/dmc - 1 set. D. Multi 10 Step 440V, 5A (144 x 144) microprocessor based power factor controller provided in the command module for target power factor setting, automatic adjustment of dead bank ratio, digital power factor display.

M. 10 Stpes Automatic Power Factor controller steps Relay Micro proccessor based for switchting ON and OFF of capacitors to Display of voltage ,current,Active power ,apparent Power display of COS Ø ,THD voltage ,THD current,alarm indication for defective step,low power factor and axcess temperature.The relay having volt free c/o contact,automatic detection and uses of optimum capacitor capable of 4 Quadrant operation and any phase offset requirement.Switching programm :LIFO combi Filter ,manual mode built in under and over voltage release with auto reset large voltage input band of 90V to 440 volt ,45 to 65 HZ,current measuring 10MA-5A suitable for CT x/1A andx/5A commissing without additional setting and programming.Three decimal power reading .Phasing out of fault capacitor bank Automatically. N. All accessories prewired with suitable size copper Wire with stand high temperature, housed in cubical panel made out of 3.15mm thick CRCA Sheet factory made duly powder coated front and rear door open able with locking arrangement complete with foundation as required or recommended by manufacturer. Note: APFC Panel shall be manufactured by original manufacturer only. The firms specified cannot authorize any other vendors to manufacture APFC Panels on their behalf failing which panels so manufactured will not be accepted.

Supply , fixing , connecting and commissioning and testing of outdoor type (automatic and manual operation) power factor improvement panel of capacity 80 Kvar including interconnection with LT panel with appropriate size of electric cable for transformer (Outdoor/Indoor) type panel factory made, weather proof , dust and vermin proof suitable for 1100 V/440 V grade 3 phase 50 HZ AC supply floor mounted , fabricated out of 3.15mm thick CRCA sheet and having four Nos angle iron legs made out of 50 x 50 x 6mm 90 cm long angle iron below frame with front door and Side/Back opening having locking arrangement prewired with copper conductor PVC insulated flexible wire size 1.5 sq mm / extension strips and connected with suitable size thimbles , lugs duly painted with siemens grey epoxy powder coating after suitable chemical treatment , legs duly embedded in ground upto 45 Cms in PCC 1:3:6 type C-1 (using 20 mm graded crushed stone aggregate) of suitable size including locking arrangement suitable for mounting , with required sheet metal enclosures, thimbles with on line monitring of Power Factor on web based application as specified and directed.

Incoming feeder:- A. Incommer MCCB 160- Amp , Three Pole, Termal based release with adjustable O/L ,Adj S/C Setting Front Face, 16 KA rupturing capacity, Ics=100%Icu, Isolation with Positive Break Indication with Double Break Contacts, Standard Extended Rotary Handle, Spreaders, Phase Barrier.- 1 No B.Metering Section- Digital Ammeter (0-150)Amps, digital Volt Meter (0-500)Volts , RYB Indicating Lamps ,1 Set Control fuses, CTs. 3 C. Insulated Busbar of Aluminium of 150A Capacity for 3 phase,, fixed on Insulators, Busbar Should be PVC Sleeved with red. Yellow. Blue Colour, Busbar Support should be of smc/dmc - 1 set. D. Multi 10 Step 440V, 5A (144 x 144) microprocessor based power factor controller provided in the command module for target power factor setting, automatic adjustment of dead bank ratio, digital power factor display.

J. 10 Stpes Automatic Power Factor controller steps Relay Micro proccessor based for switchting ON and OFF of capacitors to Display of voltage ,current,Active power ,apparent Power display of COS Ø ,THD voltage ,THD current,alarm indication for defective step,low power factor and axcess temperature.The relay having volt free c/o contact,automatic detection and uses of optimum capacitor capable of 4 Quadrant operation and any phase offset requirement.Switching programm :LIFO combi Filter ,manual mode built in under and over voltage release with auto reset large voltage input band of 90V to 440 volt ,45 to 65 HZ,current measuring 10MA-5A suitable for CT x/1A andx/5A commissing without additional setting and programming.Three decimal power reading .Phasing out of fault capacitor bank Automatically.

K. All accessories prewired with suitable size copper Wire with stand high temperature, housed in cubical panel made out of 3.15mm thick CRCA Sheet factory made duly powder coated front and rear door open able with locking arrangement complete with foundation as required or recommended by manufacturer. Note: APFC Panel shall be manufactured by original manufacturer only. The firms specified cannot authorize any other vendors to manufacture APFC Panels on their behalf failing which panels so manufactured will not be accepted.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth and getting out in hard/ dense soil for foundation of poles, structures, stay rods, laying of underground cable etc complete all as directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc 25 cm in soils complete all as specified and directed.

Removing excavated material (soils) n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

Spreading riddled earth ( after preparation of excavated earth) in Cable duct with sand cushioning of cable laid in trenches complete all as directed by Engineer-in-Charge Note:- Punned thickness 18 CM( 6.25 Cm below cale and 11.75 cm above cable) will be measured for payment purpose. Quoted rate inclusive of all arrangement as mentioned.

Supply and Laying bricks, common burnt clay building bricks, sub class 'B' of size 230 x 115 x 75 mm laid across in trenches for cable protection complete all as specified and directed.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25 sq mm 4 core complete all as specified and directed.