REPLACEMENT OF BER TRANSFORMERS AND REPAIR MAINTENANCE OF POWER TRANSFORMERS AND EHV NET WORK SYSTEM INCLUDING ALLIED WORKS UNDER GE(N) PATIALA

Amount

Supplying and fixing including commissioning protection relay Make MiCOM P141-Feeder relay-40TE-Panel mounting - 8 Inputs / 7 Outputs at VCB panels complete complete all as directed by Engineer-in-Charge comprising of following :- Protection Type : Overcurrent ANSI code : 50 / 51 Breaker failure Cold load pick-up Earth fault ANSI code :50G / 51G Directional earth fault Lockout ANSI code : 86 Negative sequence overvoltage ANSI code : 47 Under voltage ANSI code : 27 Overvoltage ANSI code : 59 Directional phase overcurrent Rate of change of frequency ANSI code : 81R Neutral voltage displacement ANSIcode : 59 N Thermal overload protection ANSI code 49 RMS Under frequency ANSI code : 81L Over frequency Phase undercurrent ANSI code 37 Earth fault watt metric Restricted earth fault Voltage - restrained overcurrent. Number of inputs : 3 voltage, 8 discrete, 5 current input CT...X/5 A and X/1A Number of inputs : 7 discrete Communication port protocol : IEC 61850 DNP3 (Modbus RTU) Ethernet IEC 60870-5-103 Auxiliary Supply : 24….48 V DC 19…65V 48…110 V DC 37… 150V 40... 100 V AC 32 ... 110 V 110...250 V DC 87...300 V 100...240 V AC 80... 265 V

Supply and fixing in replacement transformer protection differential relay of 66 KV/11 KV fixed in transformer control panel, 3 phase, in-1/5A, F=50 Hz, EL=24-240 Volts, including dismantling of old unseviciable differential relay and necessary setting of new relay with all connected tripping mechanism/power transformer control relays and submit necessary test report complete all as directed by Engineer-in-Charge.. Make:- Model No MIcom P 642 of Schneider or equivalent make give in List of makes appx'B' .

Material and labour for painting of HT panel/VCB Panel indoor type, removing existing old paint with the help of sand/emery paper etc. Preparing surfaces externally including cleaning etc. Applying externally two coat of synthetic enamel paint with help of spray machine method including cleaning the VCB's breakers and inner compartment by using blower and greasing the spares of the panels, Including making the provision of FEEDER's name plates and outgoing details (for 66 KV Grid) by fabricated/embedded sheet of suitable size, as directed by Engr-In- Charge at site complete all as directed by Engineer-in-Charge. Notes :- (a) Shutdown of HT line shall be taken by contractor in writting from MES (b) Painting at 66 KV Grid VCb's and feeder indication plates are catered in this BOQ schedule.

Material and labour for taking down by scraping of old bubbled paint from Isolator box approximate size 2.50 x 2.5 x 1.5m at 66 KV sub station including preparation of surface and re-painting with spray guns with two coats of synthetic enamel grey paint & including applying two coats of black paint to the angle iron frame including welding of doors etc complete all as directed by Engr-in-Charge.

Material and labour for taking down by scraping and preparation the surface from the CTs & PTs tower steel structures approximate size 9 x 2.2' x 2.2' at 66 KV sub station including repainting with spray guns with two coats of super quality of aluminium paint etc complete all as directed by Engr-in-Charge.

Material and labour for aluminium conductor steel reinforced (ACSR) DOG/Zebra for 66 kV sub station including fixing, stretching on Steel structures and proper noseling with binding wire with insulator of any size as required at site Including taking down of old unsv conductor complete all as specified and as directed.

Supply and fixing in repair/replacement Bimettallic Clamp or T clamp or CT Clamp or Cross Clamps for connection of Zebra conductor with Cable end, CTs, NCTs, Transformer HT Bushes complete all as directed by Engineer-in-Charge. Note :- Each clamp will be considered as one item of work.

Supply and fix in replacement of danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled red, with letters, figures and conventional skull and bones in signal white colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25x20cm size complete all as directed by Engineer-in-Charge.

Supply, install, test and commissioning of 66 KV class station heavy duty metal oxide gapless type outdoor lighting arrester (LA) for use with effective ground natural system with insulating base including surge monitors for 66 KV with all accessories to meet the requirement as under :- (a) Nominal system voltage 66 KV (rms) (b) Highest system voltage 72.5KV (rms) (c ) MCOV 52 KV (d) Nominal discharge current -10 KAP (e) Line discharge-Class 3 (f) High current discharnge- 100KAP (g) Max residual voltage-165KVP at 01 KAP complete all as specified Make:- Lamco/Oblam/CGL/Elpro

Material and labour for Structural mild steel channel, angle iron, flat iron and brackets etc for cross arms, bracings, supports, D-clamps, stiffeners, eye hooks, pole clamps, stay clamps, and back plates including nuts, bolts and washers, welding, bending cold or hot, drilling holes for bolts in any shape or size as indicated or directed and inclusive of one coat of red oxide primer, one under coat and one finishing coat of aluminium paint complete including dismantling of old unsv channels and structures all as specified and as directed. Notes:- Insulators shall be measured and paid for separately

Supply and fixing in replacement of Pole assembly complete set with vacum bottle suitable for VD-4 Breaker including servicing of complete breaker and testing to the entire satisfaction of Engineer-in-Charge.

Supply and fixing in replacement of vacum bottle suitable for VD-4 Breaker including servicing of complete breaker and testing to the entire satisfaction of Engineer-in-Charge.

Supply and fixing in replacement of Vacuum interrupter pulling rod suitable for ABB/Seimens suitable breaker for existing model for fixing 66KV MRS complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement Tulip contacts as in repair/replacement (4/8/12 fingers) Article No GCE8385888R0102 suitable for VD 4/ZN1 Breaker complete all as directed by Engineer-in-Charge.

Supply and fixing TEK LED Lamp 110 V DC Red, blue, green, amber, white as in repair Cat Part No IVYN452291-007 of ABB or other makes given in Appendix 'B' including taking down of old lamp complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement shunt Closing Coil 110 V AC/DC as in repair/ replacement Cat Part No 1VCR004291 G0001 of ABB or equivalent in other makes given in Appendix 'B' complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement Tripping Coil 110 V AC/DC as in repair/replacement Cat Part No 1VCR004289 G0001 of ABB or equivalent in other makes given in Appendix 'B'.complete all as directed by Engineer-in-Charge.

Supply and fixing racking Mechanism as in replacement complete set Suitable for VD4 Breaker as in repair/replacement complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement diffrential Current transformer, rating 750/0.577A, Freq 50 Hz, Class PS, Make : Vidyut for 11 KV incoming VCB of Power transformers , including taking down of old unsv CTs and necessary setting, installation, testing, checking of new CT and complete wiring complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement Gear motor assembly as in repair/replacement 24V DC Motor + Motor Kit, Article No NHP201491R2 suitable for Safe Plus Breaker complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of unsv limit switch for spring charging motor for suitable model of ABB/Seimens HT panel of 66 KV MRS complete all as directed by Engineer-in-Charge.

Material and labour for highly HT insulating opaque red coloured ANTI TRACK COMPOUND SPRAY 320 of MOSIL LUBICANTS that forms flexible chemical resistank coating to class H winding for electrical apparatus, in 500 ml spray bottles to protect HT equipments, bus bar, CTs, PTs from current leakage due to moisture complete all as directed by Engineer-in-Charge.

Material and labour for Danmet Chemical spray (DC> 2-26 having container 415ml/300g for precision blended multipurpose product for prevents corrosion penetrates, lubricates, displaces and seals out moisture release rusted mechanism cleanse etc complete all as directed by Engineer-in-Charge. Make : Danmet Chemical Pvt Ltd or other makes given in Appendix 'B'

Supply and fixing in replacement of unsv spout of VCB panel for ABB VD4 model from HT panel of 66 KV /11 KV substations complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of unsv strip heaters 80/100 watt from HT panel of 66 KV /11 KV substations complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of unsv thermostat from HT panel of 66KV MRS complete all as directed by Engineer-in-Charge..

Supply and fixing in replacement of potential transformer of rating 11000/110V size and model as suitable as existing PTs installed at 66 KV MRS of Make ABB asper site requirement complete all as directed by Engineer-in-Charge. .

Supply and fixing in replacement of Current transformer of rating 500-250/5A size and model as suitable as existing CTs installed at 11 KV Sub Stations as per site requirement complete all as directed by Engineer-in-Charge. Make:- ABB/Siemens/Schneider.

Supply and fixing in replacement PT Bushing of capacity 11KV suitable to fit on exisitng PTs in 11 KV incommer VCBs at 66 KV MRS complete all as directed by Engineer-in-Charge.

Supply and fixing in repair/replacement PT fuse of capacity 11KV suitable to fit on exisitng PTs in 11 KV incommer VCBs at at 66 KV MRS complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of Master tripping relay of auxillery vaoltage 24 V/110V AC/DC of Make ABB incl fixing in HT panels at 66 KV MRS and 11 KV sub stations with connections complete as per diagram from OEM complete all as directed by Engineer-in-Charge.

Material and labour for SF6 gas upto required level by using gas filling adapter including testing after completion complete all as directed by Engineer-in-Charge. Note:- Necessary filling kit with suitable nobe shall be provided by the contractor.

Material and labour for mechanical servicing of SF6 breaker and checking of control wiring , checking of tripping coil, limit switch ,gear motor and applying petrolem jelly to the parts complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of TNC switch for VCBs at 66KV MRS complete all as directed by Engineer-in-Charge. .

Supply and fixing in replacement of combined over current and earth fault relay REJ601/7SR1205 of Make ABB /Seimens incl fixing in HT panels at 66 KV MRS with connections complete as per diagram from OEM complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of Master tripping relay of auxillery voltage 24 V/110V AC/DC of Make ABB//Seimens incl fixing in HT panels at 66 KV MRS with connections complete as per diagram from OEM complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of auxiliary contact suitable for Make ABB//Seimens incl fixing in HT panels at 66 KV MRS with connections complete as per diagram from OEM complete all as directed by Engineer-in-Charge.

Material and labour for replacement for existing RTCC panel display meter as per sample and existing model complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of busbar insulator of Make ABB//Seimens incl fixing in HT panels at 66 KV MRS with connections complete as per diagram from OEM complete all as directed by Engineer-in-Charge.

Servicing of HT Capacitor bank after disconnecting HT/LT supply and installed after repairing, cleaning and servicing of capacitor bank , removing moisture and dust from HT bus bar, applying petroleum jelly to to the bus bar , greasing to the moving parts including all misc items such as lugs, nuts, bolts, indicator lamp and control wiring complete all as directed by Engineer-in-Charge. (a) Removing the complete fixed contacts, moving contacts, cleaninig the contacts,removing the fittings and fixing back to the same (b) Checking all control wiring, lugs, nuts and bolts of capacitor bank. (f) Testing of IR value and submitting report of IR value with the help of meggar and commissioning the capacitor bank all as specified and as directed by Engineer-in-charge.

Supply and fixing in replacement door lock suitable for existing VCBs of make ABB/Seimens complete all as directed by Engineer-in-Charge.

Surface Dressing/Cleaning at 66 KV MRS free from vegetation of any type including trimming of tree branches, bushes, creepers, etc. complete all as directed by Engineer-in-Charge Note:- The frequency of surface dressing shall not be less than 2 months

Material and labour for spraying chemical (Roundup) on area to remove unwanted vegitation/grass at various locations as directed by Engr-in-Charge. Notes: (i) Labour and equipments to spray chemical on required area are incl in quoted rates. (ii) Spray will be repeated quarterly complete all as directed by Engineer-in-Charge

Supply and fixing in replacement of Battery 2V,100Ah dry cell type maintenance free VRLA batteries for breaker relays of 66/11 KV HT SF6 & VCBs. Including stand rack for batteries and fixing in switch room floor complete all as directed by Engineer-in-Charge

Supply and fixing in replacement of UNSV 72.5 KV rotating type, horizintal mounting, electrical air break Isolating switch 400 Amps, 66 KV, input voltage 72.5 KV, rated peak with stand capacity 79 KA, overall height 770 mm, having the following specifications :- [a] EC Copper Contact Element [b] MS Flat 'U" - 50 x 6 mm [c] EC Copper Flat terminal [d] Aluminium Cylindrical Rod [e] MS Flat "L" - 100 x 6mm [f] MS Angle - 50 x 50 x 6mm [g] EC Copper blade 1-12" x 1/4"x40-1/2" [h] Bearing assembly [j] MS Flat - 100 x 6mm x 10" long [k] MS Angle stop - 400 x 40 x 60mm size [l] MS Channel - 100 x 50 [m] 72.5 KV post insulator like HTIF - 3031

Supplying and laying in replacement of synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseeding IS 5424) suitable for electrical shock safety of sizes 10m x 1m complete all as directed by Engineer-in-Charge.

Material and labour for replacement of bimetalic pad clamp suitable for existing 66 kv isolators of size not less than 4'x4' of capacity 1250 amps with six nos of grews with nut and bolts complete all as directed by Engineer-in-Charge.

Material and labour for earthing complete with galvanised earth plate electrode 600mm x 600mmx 3.15 mm thick surrounded by charcoal and salt, burried directly in ground vertically in a pit of depth not less than 2.25m below ground level with top edge of the earth plate not less than 1.5m below normal ground level, connected to 20x3 mm copper strip earth lead by means of bolts, nuts, checks nuts and washers made out of galvanized iron or steel, earth wire protected by galvanized steel pipe 40mm bore medium grade and connected to main switch or main control board all as shown in electrical plate No.3 of SSR Part-I & including necessary excavation and earth work. The rate also include charcoal & salt in alternate layers, 20mm bore GI pipe medium grade for watering and 40mm bore GI protection pipe (light grade), funnel, wire mesh, cast iron cover and frame etc including testing on completion complete including Dismantling and taking down/out old u/s earthing complete all as specified and as directed. Note :- (i)The quoted rate shall include the cost of the earth pit covers to be conspicuously marked of plate with stand grouted in PCC. (ii) On testing after completion if the desired earth resistance is more than 2Ώ the earthing will be redone at no extra cost.

Material and labour for installation, testing & commissioning of maintenance free chemical earthing system comprising 17 mm dia copper bonded rod 3 mtr long horizontally pre welded T-terminal rod with provision for connection size of 50 x 150mm long, 6 mm thickness with equal space either side, with 12 mm dia hole of 02 numbers each on either side of the terminal clamp with 250 microns (average) coating thickness, tested and certified by CPRI India alongwith 50 Kg earth energizer compound and 10 litres earth resistance reducing liquid. The earthing energizer compound and resistance reducing earthing liquid shall be tested as per IEC-62561-7 read with ASTM G57-06, CI 3.4 A by any NABL accredited lab. The above mentioned rod shall be installed in 4-6 inch bore, 12 feet depth with a distance of minimum 3 meters between each installation including taking down any type of earthing complete all as directed by Engineer-in-Charge.

Material and labour for loose filling in substations, under poles, under transformers of hard core broken to gauge not exc 63 mm broken stone/boulders incl leveling and spreading lime stone powder under stones complete all asdirected by Engineer-in-Charge.

Supply, fixing, testing & installation in replacement of 3 Phase heavy duty exhaust fan metal body, 900 RPM, 600 MM sweep, 415 Volt, for forced cooling of 66 KV Power Transformer installed at 66 KV MRS including dismantling of old UNSV exhaust fans from Transformers complete all as directed by Engineer-in-Charge.

Material and labour for cleaning the complete zebra conductor busar system by Isolating the main 66 kv isolater and earthed the each line to ground by earth rod to ground remove the carbon and dust accumalted in the bus bar by means of emri paper and applying tthe petroleum gely , grease to the moving parts of isolator and checking the allignment of isolator ,earth switch ,condition of pad clamp, bietalic clamp complete all as directed by Engineer-in-Charge. Note :- Contractor will give prior intimation to carry out maint tests to plan shut down. The shut down will not be permitted more than 4 hours in a day to carry out the test/maintenance. The contractor has to plan the work accordingly.

Supply and fixing in replacement of presssure release valve suitable for 8/12 MVA power transformeras per the existing size complete all asdirected by Engineer-in-Charge.

Supply and fixing in replacement of magnetic oil level guage (MOG) as existing size consist of one float arm , bevel gear arrangement with mercury switch and indicating dial from Empty to Full division such as 1/4,1/2,3/4 , with control cable complete all asdirected by Engineer-in-Charge..

Supply , installed, testing and commissioning in replacement of UPS EB 1100VA Inverter, AC 230 volts, 50 Hz with stand for battery including all connection and standard accessories complete all as directed by Engineer-in-Charge.

Supply and installed, testing and commissioning in replacement of Tubular battery 12 volt, 180 Ah, standard size, multi color with suitable stand including all accessories complete all asdirected by Engineer-in-Charge.

Dismantling the existing unserviceable sign board and S & F Glow sign board of size 6.1 x 1.2 meter with 8 inch lasure cut yellow colour letters emebbeded on board with blue base including suitable MS stand structure, 4 legs, nut bolt and washers at power houses complete all asdirected by Engineer-in-Charge.

Supply, laying, hanging and connecting PVC insulated,sheathed cable, FRLSH grade, unarmored, electric control cables (Heavy duty) with stranded copper conductor of size 2.5 sq mm 10 core 1100 Volts grade including SS gland etc for controlling of CTs/PTs/ metering system of HT panels incl taking down old unsv copper wire complete all as directed by Engineer-in-Charge.

All as per serial item No. 59.00 here-in-before but size of copper cable 2.5 sq mm 6 core complete all as directed by Engineer-in-Charge.

All as per serial item No. 59.00 here-in-before but size of copper cable 2.5 sq mm 4 core complete all as directed by Engineer-in-Charge.

All as per serial item No. 59.00 here-in-before but size of copper cable 2.5 sq mm 2 core complete all as directed by Engineer-in-Charge.

Supplying and laying synthetic rubber insulated mats 2.5 mm thick for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m incl taking down old unsv rubber mats complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of contactor 3 pole 25-32 Amp/3-7.5KW for exhaust fan control at power transformer including coil operating voltage 440 volt complete all as directed by Engineer-in-Charge. Make- Schneider/BCH/L&T or equivalent as approved by GE

Supply and fixing in replacement of Dew Guard (Moisture absorber) of size 100x150x2 mm shall be made of synthetic rubber and a super absorbent polymer and covered by a non woven fabric, absorbency of 0.8g (H2O) / 1g (product) @25 deg C and 95% RH or higher, works between a large temperature range of -30 deg C to +90 deg C, halogen and silicon free, Make :- Hensel model No HDG 100 suitable model of ABB/Seimens HT panel 66 KV MRS complete all as directed by Engineer-in-Charge

Supply and fixing in replacement of panel tube based micro environment suppression system (CQRS) having heat-sensetive preumatic polymer tubing connected to one to a charged fire extinguisher cylinder capacity 2 kg with valve 20 mtr polymer tubing, operating temp 150-180 degree celcius complete all as directed by Engineer-in-Charge. Make:- Ceasefire or as given in Appendix'B'

Supply and laying smooth natural stone river pebbles of size 40 mm oval/round in shape around transformer plinth,two pole/ Four pole structures with river white sand including cleaning the surface/area completecomplete all as directed by Engineer-in-Charge

Material and labour for disconnecting of diffrent capacities transformer from foundation/Four pole structure carefully after taking out necessary electrical connection and depositing to MES store yard including demolition including dismantling earthings, GI pipe and HT/LT cables carefully complete all as directed by Engineer-in-Charge.

Supply , installing, testing and commissioning of outdoor type step down transformer 11000/433 volts (at no load), AC , 3 phase 50 Hz , copper wound type complete with standard fittings, 11 KV 3 phase , LT 433 volts, 3 phase 4 wire with off load tappings on HT side to vary secondary voltage within limit, all as per IS: 1180 (with latest amendments) of capactiy 315 KVA.core type copper wound,oil immersed, naturally cooled, oil nature,air nature(ONAN) with external cooling tubes/fins delta connected on primary side (HV) and star connected on secondary side(LV) in accordance with vector symbol DYN-11(Vector group)with neutral brought out on secondary side (LV side ) and having tapping at ±5%HV side to be changed by means of hand operated off load tap changer gear. the maximum temparature rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temparature of 40 degree celsius. The transformer shall be IS 1180 marked and shall comprise of the following :- (a) 3 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing,copper rods, nut and washers. (b) One cable box on LT side (secondary side ) consisting of 04 No of porcelain bushing with copper rod , complete with nuts and washers with two numbers cable glands suitable for reception /taking out of XLPE insulated heavy duty armoured cable including glands, joints and jointing material complete. (c) Oil conservator with filter type drain valve and oil level gauge (d) Dehydrating breather with first fills dehydrating agents (silca gel)

(e) Thermometer pocket on tank cover (f) One number 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree celsious wth metal guard having max perimeter reading tempreture indicator with resisting device for transformer (g) Two earthing terminal on tank cover to facilitate fixing of 32x6 mm GI earth strip for earhting of neutral and body.(h) Rating plate and terminal marking plate (i) Oil level gauge (j) Oil drain filter valve (k) Lifting legs (l) Oil filling holes with cap/plug with connecting plate complete (m) Air release plug (n) Four plain solid cost steel detachable rollers (o) Extra bushing for neutral, outside LT cable box for proving independent earthig for neutral (p) First filling new and unused transformer oil IS-335/93(forth version) marked (make -HP/power oil or equivalent as approved by GE) filtered and tested dielectric strength at 2.5 mm air gap between testing electrode asper IS 335. Note:- Certification of electric strength shall be submitted by the cotractor after filling the oil

Supply , installing, testing and commissioning of outdoor type step down transformer 11000/433 volts (at no load), AC , 3 phase 50 Hz , copper wound type complete with standard fittings, 11 KV 3 phase , LT 433 volts, 3 phase 4 wire with off load tappings on HT side to vary secondary voltage within limit, all as per IS: 1180 (with latest amendments) of capactiy 200 KVA.core type copper wound,oil immersed, naturally cooled, oil nature,air nature(ONAN) with external cooling tubes/fins delta connected on primary side (HV) and star connected on secondary side(LV) in accordance with vector symbol DYN-11(Vector group)with neutral brought out on secondary side (LV side ) and having tapping at ±5%HV side to be changed by means of hand operated off load tap changer gear. the maximum temparature rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temparature of 40 degree celsius. The transformer shall be IS 1180 marked and shall comprise of the following :- (a) 3 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing,copper rods, nut and washers. (b) One cable box on LT side (secondary side ) consisting of 04 No of porcelain bushing with copper rod , complete with nuts and washers with two numbers cable glands suitable for reception /taking out of XLPE insulated heavy duty armoured cable including glands, joints and jointing material complete. (c) Oil conservator with filter type drain valve and oil level gauge (d) Dehydrating breather with first fills dehydrating agents (silca gel)

(e) Thermometer pocket on tank cover (f) One number 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree celsious wth metal guard having max perimeter reading tempreture indicator with resisting device for transformer (g) Two earthing terminal on tank cover to facilitate fixing of 32x6 mm GI earth strip for earhting of neutral and body.(h) Rating plate and terminal marking plate (i) Oil level gauge (j) Oil drain filter valve (k) Lifting legs (l) Oil filling holes with cap/plug with connecting plate complete (m) Air release plug (n) Four plain solid cost steel detachable rollers (o) Extra bushing for neutral, outside LT cable box for proving independent earthig for neutral (p) First filling new and unused transformer oil IS-335/93(forth version) marked (make -HP/power oil or equivalent as approved by GE) filtered and tested dielectric strength at 2.5 mm air gap between testing electrode asper IS 335. Note:- Certification of electric strength shall be submitted by the cotractor after filling the oil

Supply , installing, testing and commissioning of outdoor type step down transformer 11000/433 volts (at no load), AC , 3 phase 50 Hz , copper wound type complete with standard fittings, 11 KV 3 phase , LT 433 volts, 3 phase 4 wire with off load tappings on HT side to vary secondary voltage within limit, all as per IS: 1180 (with latest amendments) of capactiy 100 KVA.core type copper wound,oil immersed, naturally cooled, oil nature,air nature(ONAN) with external cooling tubes/fins delta connected on primary side (HV) and star connected on secondary side(LV) in accordance with vector symbol DYN-11(Vector group)with neutral brought out on secondary side (LV side ) and having tapping at ±5%HV side to be changed by means of hand operated off load tap changer gear. the maximum temparature rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temparature of 40 degree celsius. The transformer shall be IS 1180 marked and shall comprise of the following :- (a) 3 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing,copper rods, nut and washers. (b) One cable box on LT side (secondary side ) consisting of 04 No of porcelain bushing with copper rod , complete with nuts and washers with two numbers cable glands suitable for reception /taking out of XLPE insulated heavy duty armoured cable including glands, joints and jointing material complete. (c) Oil conservator with filter type drain valve and oil level gauge (d) Dehydrating breather with first fills dehydrating agents (silca gel)

(e) Thermometer pocket on tank cover (f) One number 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree celsious wth metal guard having max perimeter reading tempreture indicator with resisting device for transformer (g) Two earthing terminal on tank cover to facilitate fixing of 32x6 mm GI earth strip for earhting of neutral and body (h) Rating plate and terminal marking plate (i) Oil level gauge (j) Oil drain filter valve (k) Lifting legs (l) Oil filling holes with cap/plug with connecting plate complete (m) Air release plug (n) Four plain solid cost steel detachable rollers (o) Extra bushing for neutral, outside LT cable box for proving independent earthig for neutral (p) First filling new and unused transformer oil IS-335/93(forth version) marked (make -HP/power oil or equivalent as approved by GE) filtered and tested dielectric strength at 2.5 mm air gap between testing electrode asper IS 335. Note: Certification of electric strength shall be submitted by the cotractor after filling the oil

Material and labour for provision of transformer plinth of size 2.5 x 2.5 mtrs complete with fencing, PCC foundation, RCC Slab and gravel filling all around including Steps all as shown on TD-251 Sheet 1/1complete and as directed by Engineer-in-Charge..

Supply,laying,in trenches or passing through pipe, ducts,along poles/walls etc testing and commissioning XLPE insulated, armoured, electric power UG cable (Heavy duty) with aluminium conductor, 1100 volts grade cable of nominal cross sectional area 240 sqmm X3.5 core including brass compression cable gland, terminal aluminium lugs etc making connection and testing complete all as specified and as directed. Note :- For serial item no 73, 74 (i) Excavation and earth work,sand cushioning, Pipes and bricks/cable covers for protection, mild steel clamp nut and bolts shall be measured and paid separately.

All as per item No.73 here-in before but cable of size 185 sqmm x 3.5 core complete all as specified and as directed.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5m in depth for laying of pipe, cable, foundation of electric poles,stays etc and getting out as in soft/loose soil complete all as specified and as directed.

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

Removing surplus soil to a distance not exc. 50 M and depositing where directed at a level not exceeding 1.5 Mtr above the starting point complete all as specified and as directed.

Supply and spreading fine river sand in trenches for cushioning of under ground cable, 8 cm before laying of cables and 15 cm after laying of cable complete all as specified and as directed. Note:- Only punned thickness shall be measured for payment purpose

Supplying and laying un-reinforced precast concrete cable cover , class LV, Type 1, flat of size 250 mm x 150 mm x 40 mm for cable protection, confirming to IS : 5820-1970 and having minimum average load breaking strength 200 Kg/Sqcm complete all as directed by Engineer-in-Charge. Make : Surya Kiran Tiles and Pavers / National Tiles Corporation Panchkula / A-One Concrete Pvt Ltd / Unistone Product Ltd New Delhi Note : The sample of precast concrete cable cover will be got tested from govt. approved lab as decided by GE and cost of testing is deemed to be included in unit rate of this item

Supplying and fixing in replacement GI, PG clamps of suitable size as existing with proper nut,bolt, washesrs arrangements at 66 KV yard structures with proper conductor connections.complete all as directed by Engineer-in-charge. Note:- contactor will inform one day priror to work execution and Proper Shutdown will be provided

Supply and fixing 24/110 volt feeder protection and control relay protection control for Over current, EF , REF and voltage , measurement and supervision of overhead lines and cable feeders in utility and industrial power distribution systems, including radial, looped and meshed distribution networks, with or without distributed power generation. Extensive range of protection and control functionality, either with sensors or conventional instrument transformers Ready-made standard configurations for fast and easy setup with tailoring capabilities, Withdrawable plug-in unit design for swift installation and testing, Large graphical display for showing customizable SLDs, accessible either locally or through an easy-to-use web-browser-based HMI, Extensive life-cycle services Including taking out unsv relay any type and size and make complete all as directed by Engineer-in-Charge.Make Model : CG /Coronet /ABB

R D Bansal (BID ID -3412088)