COMPREHENSIVE REPAIR/MAINTENANCE OF 33 KV/11KV GOD SWITCHERS, TRANSFORMER, HT PANELS AND CONNECTED WORK AT OLD CAMP AND ADJOINING AREA AT BABINA CANTT UNDER GE BABINA

Amount

Excavation in trenches n. exc 1.5 mtr wide and n. exc 1.5 mtr depth for pole / cable / foundation etc incl getting out in soft /loose soil complete all as specified and directed.

Excavation in trenches in any type of soil not exc 1.5 mtrs wide and exc 1.5 mtr in depth for laying of pipe/ cables/ poles etc and getting out complete all as specified and as directed.

Returning, filling in, approved earth including spreading, levelling, watering and well ramming in layers n.exc 25 Cm thick after cable are laid and tested complete all as specified and directed.

Removing excavated material / surplus soil to a distance not exc. 50 mtrs & deposited where directed at a level not exc.1.5 mtr above the ground level complete all as specified & directed.

M&L for PCC cable cover class HV type 1 flat size 300 mm x 180 mm x 40 mm, ISI marked across the cable for protection of cable after sand cushioning complete all as specified and directed. Make :- M/s Mehatab Tiles, Indore/M/s Navya Tiles, Jodhpur/Sap Pavers, Jodhpur/Sagar Tiles, Saharanpur/Star Tiles & Industries, Rama Devi Kanpur

M&L for fine and clean sand (river sand) free from sharp materials in trenches for cushioning of cable 8 cm thick under cable and 15 cm thick over the cable including gently punning complete all as specified and directed. Note:- The total thickness of sand shall be measured 18 cm after punning.

M&L for steel tubing galvanised, light grade ISI marked, complete with fittings laid in trenches/fixed along with poles etc as protection to cables of size 80 mm dia bore complete all as specified and directed.

M & L for road cutting incl excavation in trenches for laying HT UG cable in pipe not exc 45 cm wide and n.exc 90 cm depth or as per site requirement including laying of GI pipe 100 mm dia light grade making good the disturbed surfaces with cement concrete (1:3:6) type C-1 and top surface neatly finished as per existing to match with the existing complete all as specified and directed. Note :- rate of 100 mm GI pipe (light grade) included in quoted rate

Supplying, laying, jointing & commissioning in replacement of cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts grade, (Earthed) cross sectional area 95 sqmm 3 core as per IS 7098 Pt-II complete all as specified and directed. Make :- KEI/Havells/Universal cables

Description all as per item no 9 here before but of size 120 Sqmm 3 core complete all as specified and directed.

Description all as per item no 9 here before but of size 185 Sqmm 3 core complete all as specified and directed.

Disconnecting electric outdoor/indoor transformer capacity from 63 KVA to 160 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/plinth or inside sub station for major repairing/minor repair complete all as specified and directed. Note:- Cost of T&P and labour required for the work to be included in the rate quoted.

Description all as per item no 12 here before but of capacity 200 KVA to 315 KVA complete all as specified and directed.

Description all as per item no 12 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

Draining out complete transformer oil from transformer of from 63 KVA to 160 KVA capacity at site which found major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination by GE/AGE E/M and lowering/fixing of core assembly in its original position after inspection to make it ready for transportation to carry out repair work in workshop complete all as specified and directed.

Description all as per item no 15 here before but of capacity 200 KVA to 315 KVA complete all as specified and directed.

Description all as per item no 15 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

Transportation of unserviceable transformer of capacity from 63 KVA to 315 KVA to workshop and return back for installation it on original position/location after repairing from workshop (Rate is deemed to be inclusive of transportation, T&P and man power)

Description all as per item no 18 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

M&L for Opening of top cover by unscrewing nut, bolts & washers etc and taking out core assembly from tank by disconnecting from tap changer HT & LT side bushing stud to outside by dismantling the channel and disconnecting star delta connection of transformer having capacity from 63 KVA to 160 KVA. complete all as specified and directed.

Description all as per item no 20 here before but of capacity 200 KVA to 315 KVA complete all as specified and directed.

Description all as per item no 20 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

M&L for Removing the lamination in proper manner carefully for taking out serviceable/ unserviceable HT/LT coils from the limbs of capacity from 63 KVA to 160 KVA transformer complete all as specified and directed.

Description all as per item no 23 here before but of capacity 200 KVA to 315 KVA complete all as specified and directed.

Description all as per item no 23 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

M& L in repairs for rewinding of HT coils with copper wire DPC/super enameled high quality matching with existing gauge and impedence including requisite insulating paper/material in each layer of winding after taking down old existing winding of HT leg coils complete all as specified and directed.

Description same all as per item No 26 here-in-before but LT coils with copper strips complete all as specified and directed. Note : For srl item No 26 to 27 The rate quoted against these items is inclusive necessary provision and cost of all types of insulating materials and heating/ varnishing etc.

M& L for Inserting of HT/LT coils on limbs rewinded here in before/old after cleaning of lamination in proper way and also after insulating the limbs with requisite insulating materials on limbs in between limbs/coils upto 63 KVA to 160 KVA capacity transformer complete all as specified and directed.

Description all as per item no 28 here before but of capacity 200 KVA to 315 KVA complete all as specified and directed.

Description all as per item no 28 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

M& L for Re-arranging the top lamination over coils in proper manner including fixing of channel soldering in between coils as necessary and brazing of star delta connection with tap changer from 63 KVA to 160 KVA capacity transformer complete all as specified and directed.

Description all as per item no 31 here before but of capacity 200 KVA to 315 KVA complete all as specified and directed.

Description all as per item no 31 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

M& L for Baking the core assembly in the oven duly varnishing the coil to improve IR value and to eliminate moisture content from 63 KVA to 160 KVA capacity transformer complete all as directed.

Description all as per item no 34 here before but of capacity 200 KVA to 315 KVA complete all as specified and directed.

Description all as per item no 34 here before but of capacity 400 KVA to 630 KVA complete all as specified and directed.

M& L for Inserting the core assembly after baking in the tank (before inserting tank to be cleaned by removing all deposit sludge etc including drying) and making connection with HT/LT bushing studs and closing the tank top cover by fixing of suitable size of nut, bolts and washers for transformer of capacity 63 to 630 KVA complete all as specified and directed.(Top cover gasket will be measured and paid separately). Note :- (i) Repairing of transformer have to be completed within 15 days duration. If the contractor has fails to repair the transformer with in 15 days contractor has to provide another same capacity of transformer without extracost. (ii) In case the defective/unserviceable transformer not repaired & installed on site with in specified period of 15 days from the date of handing over to contractor, a penal recovery @ 5000/- per day will be charged from his dues.

Supply and fixing in renewal of porcelain transformer bushing on LT 1.1 KV side including brass stems conical bush and gasket for indoor/outdoor transformer of the following capacity :-

Capacity 63 KVA to 315 KVA complete all as specified and directed..

Capacity 400 KVA to 630 KVA complete all as specified and directed..

Supply and fixing in renewal of porcelain transformer bushing HT 11 KV including brass set stems conical bush and gasket for indoor/outdoor transformer of following capacity complete all as directed

Capacity 63 KVA to 315 KVA complete all as specified and directed..

Capacity 400 KVA to 630 KVA complete all as specified and directed.

S&F in renewal of silica get breather assembly with vent pipe and new silica gel for indoor/outdoor transformer of the following capacity :-

Capacity 63 KVA to 315 KVA complete all as specified and directed.

Capacity 400 KVA to 630 KVA complete all as specified and directed.

Supply and changing Silica gel from breather after heating till requisite/desired colour is achieved complete all as specified and directed.

ON load centrifuging and dehydration including filtration and cleanning of transformer oil by dehydration machine electric operated without any shutdown of transformer including testing oil sample before and after dehydration and dehydration and filtration oil as complete all as specified and directed. Note :- (i). Dielectric strength of oil after dehydartion shall be more than 45 KV at 2.5 mm gap on load (ii) Transformer oil required for top up shall be measured and paid separately. (iii) Contractor have to arrange the dehydration machine and testing kit from his own resources without any extra cost. (iv) The work will be carried at different locations in cantt area. Neceaary transport arrangement for shifting machine from one place to another to be arranged by contractor and cost of same to be included in unit rate.

Supply and filling Transformer oil confirming to IS-335 (as in toping up or replacement) of 50 KV breaking capacity complete all as specified and as directed. Note :- The work will be carried at different locations in cantt area. Neceaary transport arrangement for shifting machine from one place to another to be arranged by contractor and cost of same to be included in unit rate.

M&L for spray painting of transformers located at various locations in Babina Cantt with two coats of synthetic enamel paint first quality of approved colour/shade after preparation of old painted surface to entire satisfaction of Engr-in-charge incl writing SM and MES Nos for the capacity of transformer from 63 KVA to 200 KVA complete all as specified and as directed. Note :- The work will be carried at different locations in cantt area. Neceaary transport arrangement for shifting machine from one place to another to be arranged by contractor and cost of same to be included in unit rate.

All as per srl item No 44 here in before but for the capacity of transformer 250 to 630 KVA capacity

Disconnection of faulty HT 11 KV cable of any size from both ends, testing of cables with HT megger or highvoltage DC testing mechine and locating the fault in the cable by fault locating Machine (FLC) to pin point at the exact position of fault including the cost for transporting machine at various locations with T&P, manpower and standby power supply for testing of cable complete all as specified and directed ( Cost also incudes for providing fault locating machine at site as per requirement). Note :- The contractor will be initated on phone followed in writing for faults in HT/LT UG cables. Contractor has to attend site and arrange to bring FLC machine on site within 48 hrs to locate the fault. If the contractor failing to bring the FLC machine for location of fault a penalty of Rs 2000- per cable will be charged from his dues.

M&L in replacement of aluminium conductor, steel reinforced (ACSR) of any size/description on LT poles/lines incl stringing, tightening, binding to insulators with aluminium wire making and connecting jumpers, connections etc incl connecting, commissioning and testing complete all as specified & directed.

S & F and replacement of cross arms, bracing, supports clamps and back plates fabricated from structural steel sections incl nuts & bolts, washers, welding bending cold or hot, drilling holes for bolts in any shape or size and inclusive of one red oxide primer coat, one under coat and one finishing coat of synthetic enamel paint complete all as specified and directed

S&F of cable jointing Kit 33 KV (earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 150/185 sqmm complete all as specified and as directed.

S&F of cable jointing Kit 11 KV (earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 95 sqmm complete all as specified and as directed. Make :- Denson/M-seal/Birla-3M

Description all as per item no 51 of here above but of size 120 sqmm 3 core complete all as specified and directed Make:- Denson/M-seal/Birla-3M

Description all as per item no 51 of here above but of size 185 sqmm 3 core complete all as specified and directed

S&F of cable jointing Kit 11 KV (earthed) grade cable for indoor straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 95 to 120 sqmm complete all as specified and as directed. Make:- Denson/M-seal/Birla-3M

S&F of cable jointing Kit 11 KV (earthed) grade cable for outdoor straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 120 to 185 sqmm complete all as specified and as directed. Make:- Denson/M-seal/Birla-3M

M&L for cleaning of electric substation/installations including cutting/removing of grass, bushes and trimming of branches of trees inside the premises and also roemoving from the substation premises complete all as specified and as directed. If the contractor has fails to clean the substation after intimation throgh telephonically and followed through letter with in 48 hours a penality of Rs 10/sqm per day will be charged from his dues.

M&L for cutting of tree branches upto 3 mtr away from the over head line including removing outside the MOD land complete all as specified and directed. Span of OH line will be 40 - 50 mtr. Necessary T&P, man power and transport will be arranged by contractor without any extra cost. Necessary shut down must be taken before trimming/cutting tree branches. Any lapse/incident happened due to negligence will be responsibility of contractor & no any claim in this regard will be admissible to the dept. If the contractor has fails to clean the substation after intimation throgh telephonically and followed through letter with in 48 hours a penality of Rs 100per span per day will be charged from his dues.

M&L for switch air break gang operated triple pole , mechanically operated mounted on HT insulators (12 insulator type) and MS galvanised steel frame with operating mechanism worked from ground level including operating rod and operating handle with 11 KV insulation for current rating up to 200 amps 11000 volts with locking arrangement, MS clamps, nuts, bolts and washers etc also incl drop out expulsion type fuse, single pole up to 25 Amps, 11000 volts with fuse barrels, incl two coats of aluminium paint over a coat of red oxide primer on MS work complete all as specified and as directed. Make :- Jaipuria Brothers/HEI/Southern Switch

Supply, erection and connection new Pre- streessed concrete poles 152 mm x 152 mm at top and 152 mm x 260 mm at bottom, class 9, 11.0 mtrs long including making alternate white and red strips 30 cms height (05 Nos strips) numbering the poles by 2" height letters complete all as specified and directed. Make :- Hindustan pressed concrete, Faridabad/M/s Indian PCC poles/M/s concrete Udyog, Jhansi

M&L for shifting of transformer from 4 pole/2 pole structure to PCC platform and construction of platform for the transformer of size 2m x 2m with the following (a) PCC (1:4:8) type D-2 with 40mm grade crushed stone aggregate 15cm thick in foundation (b) Brick work in CM 1:6 with sub class 'B' old size bricks (230mm thick walls) in periphery platform (c) 100mm thick RCC flooring (1:3:6) type C-1 using 20mm graded stone aggregate on top reinforced 12mm dia MS bar 100mm c/c including use and waste of form work. (d) Rendering 15mm thick in CM (1:6) on exposed surfaces (e) The platform shall be such that its height 1.5 mtr above the nearest road level and 45 cm below ground all complete all as specified and directed. Note : Cost of construction of PCC foundation included in the quoted rate.

M&L for disconnecting power supply from HT VCB /OCB/RMU of capacity 11 KV for repair works , taking out trolly unit & complete servicing of the VCB through decarbonising , cleaning the male /female isolating contacts, lubricating moving part , cleaning with CRC removing dust particles from bus bar chamber, spout gear mechanism and moving parts, repair to motor charge spring mechanism, tightening all nuts and bolts of entire trolley , checking proper operation of trolly , inserting trolley inside and testing on load complete all as specified and directed . Make of HT VCB/RMU /OCB :- Crompton/ABB/Siemens/C&S

M&L for servicing ,calibration of all type control relays such as digital earth fault/over current relay , IDMT relay , master trip relay other Aux relays , etc fixed on 11 KV VCB/OCB/RMU for over current and earth fault settings with all respects and making all tripping setting, time delay setting , for smooth functioning of all controls of HT panel including servicing of CTs , PTs , testing with primary injection test kit for load settings and timings of relays , setting tripping and closing of VCB/RMU/ SF-6 breakers complete all as specified and directed . Make of HT VCB/RMU /OCB:- Crompton/ABB/Siemens/C&S/L&T

S & F in replacement of vacuum interrupter , suitable for 11 KV HT V.C.B 11 KV 630 /800 Amps capacity cat No. 520/SP complete all as specified and directed Make :- CG or equvalent in C&S/Areva/L&T .

S & F in replacement fixed contact block of V.C.B 11 KV 630/800 Amps capacity cat No. 522/SP complete all as specified and directed Make :- CG or equvalent in C&S/Areva .

S & F in replacement moving contact block of V.C.B 11 KV 630 /800 Amps capacity cat No. 524/SP complete all as specified and directed. Make :- CG /L&T

S & F in replacement motor & gear assembly 220 Volt AC motorised mechanism of V.C.B 11 KV 630/800 Amps capacity including testing & puting on load cat No. 537/SP complete all as specified and directed. Make :- CG/C&S/Areva .

S & F in replacement closing coil assembly 24/ 110 volts DC for HTV.C.B 11 KV 630/800 Amps capacity cat No. 594/SP complete all as specified and directed. Make :- CG /C&S/Areva/L&T

S & F in replacement tripping coil assembly 24 / 110 volts DC for HT V.C.B 11 KV 630/800 Amps capacity cat No. 599/SP complete all as specified and directed Make :- CG /C&S/Areva/L&T .

S & F in replacement auxillary switch (6 No + 6NC) for HT V.C.B 11 KV 630/800 Amps capacity cat No. 562/SP complete all as specified and directed. Make CG/L&T/C&S

S & F in replacement contact plug 630/800 Amps for HT V.C.B 11 KV 630/800 Amps capacity cat No. 580/SP complete all as specified and directed. Make :- CG/L&T/C&S

S & F in replacement big cam with main shaft for HT V.C.B 11 KV 630/800 Amps capacity cat No. 568/SP complete all as specified and directed. Make :- CG /L&T/C&T.

M & L for disconnecting & taking out old/defective Current Transformer from 11 KV VCB panel, S & F installation & testing of Current transformer, indoor, comprising of 3 Nos single phase resin cast CTs of 300-150 / 5+5 Amps ratio, PS class, with suitable VA burden and accuracy suitable for protection & metering incl making suitable arrangement for fixing in existing VCB panel and connection complete all as specified and directed. Make :- L&T /Crompton/ABB/Siemens

M & L for disconnecting & taking out old/defective PT from 11 KV VCB panel, S & F installation & testing of PT, indoor, comprising of 3 Nos single phase resin cast PTs of 11KV/110 Voltage ratio, 50 Hz PS class, with suitable VA burden and accuracy suitable for protection & metering incl making suitable arrangement for fixing in existing VCB panel and connection complete all as specified and directed. Make :- L&T /Crompton/ABB/Siemens

M & L for carry out servicing of transformer of capacity 5 or 2 MVA, 33/11 KV ratio and carrying out preventive maintenance, technical inspection and testing of with a high skilled mechanic/specialist electric HT line complete as and when directed by Engr-in-Charge. Note :- (a) Checking of winding temperature & oil temperature. In case of unsatisfactory condition shut down the transformer and investigate if either is persistently higher than normal. (b) Checking of oil level and examine transformer for leaks. (If low top up with dry oil, which shall be measured & paid separately). (c) Checking of Dehydrating breather of silica gel (Replacement silica gel if required will be measured & paid separately) (d) Checking and cleaning of primary & secondary bushing from dirt and oil. (e) Checking of oil dielectric strength and presence of water moisture. (f) Checking, cleaning & testing of relays, alarm signal & contacts, fuses, circuits, their operation including change in setting, if necessary complete (g) Checking & testing of earth resistance. (h) Checking & testing of insulation resistance of windings (j) Checking of cable box. (k) Checking & tightening of bolts/nuts and other loose metallic parts. (l) Taking expert opinion in case of abnormal noise, abnormal temperature, electrical faults, alarm signal through Buchholz Relay etc.(l) Painting of the transformer (m) Checking leakges from entire transformer and replacement of packing (n) All testing tools, equipments and other T & P required for technical inspection shall be provided by the contractor.

M&L for plastering in CM (1:4), 10 mm thick in repairs on fair faces of brick work or concrete surface/cable duct/floor complete all as specified and directed.

M&L for PCC work using 20mm graded stone aggregate 1:3:6 type C1 for cable duct/ foundation complete all as specified and as directed.

Supply and fixing of GI strip 32 x 6 mm fixed in ducts / on wall / in trenches / floors etc for earthing complete fixed to equipment / test point / earth electrode complete all as specified and directed.

S & F in replacement of 11 KV Silicon polymeric composite Disc insulator B&S type incl galvanised mild steel strap 38 mm X 5 mm, insulator bolts 20 mm dia with suitable washers and nut, suitable for working pressure upto 12 KV as per IS 731/1971 or latest amendment complete all as specified and directed. Make :- BHEL/JAYSHREE/AREVA/ABB/PACTIL.

S & F in replacement of 11 kv silicon polymeric pin insulator, including one galvanized mild steel spindle two galvanised iron washers and one galvanised iron nut,11000 volt grade suitable for working pressure 12 KV as per IS 731/1971 or latest amendment complete all as specified and directed . Make :- BHEL/JAYSHREE/AREVA/ABB/PACTIL.

M&L for brick work with fly ash bricks, straight or curved on plan exc 6 m mean radius built in CM (1:4) as in foundation of equipment, platform, ramp, supporting pillars of pipes, protection wall of sub station incl demolistion of existing brick work built in cement mortar complete all as specified and directed.

M&L for laying 40 mm graded stone aggregate in substations insuch a way that after removing of unwanted grass from substations and then levelling at zero level and laying of stone dust of 50 mm thick at an initial layer and then laying of 20 mm gaded stone aggregate 100 mm thick over the stone dust. The quoted rate also includes cleaning and levelling and filling of sub station before laying aggregate. The complete work shall be as decided and directed by engr in charge.

M&L for PCC 1:4:8 type D-2 (using 40mm graded stone aggregates) as in foundation filling for erection of pole and mass concrete for poles complete all as specified and directed.

M&L for PCC 1:3:6 type C-2 (using 40mm graded stone aggregates) as in foundation filling for erection of pole and mass concrete including form work for poles complete all as specified and directed.

M&L for PCC 1:2:4 type B-1 (using 20mm graded stone aggregates) as in coping etc including form work for poles complete all as specified and directed.

Supply, installation, testing and commissioning of air brake off load isolator horizontal type switch rotating type manually operated highest system voltage 36 KV rated current 800 Amps triple pole ,each pole consist of insulating pedestals 03Nos. on galvanized steel base as per BSS/IS including rotating blade of HDE copper and fixed contacts of same material , spring loaded arcing horns of adequate section to brake magnetizing current of transformer without earthing device with adequate size of GI operating pipe for operation from ground level and operating handle complete with both off and on positions including provision of mechanical locking arrangement. Make :- KURGG /GR Power Switch Ltd/Danke Power Ltd/ PACTIL /Siemens/jaipuria brothers

Disconnecting H.T supply and and servicing of Vaccum circuit breaker (Make-Crompton Greaves) of capacity 1250 Amps and rating 36 KV by cleaning , decarbonising the moving contact points , cleaning with CRC , checking proper operation of moving parts, removing foreign /dust particles from spout gear mechanism and moving parts, repair to motor charge spring mechanism, checking of DC supply wiring , parts tightening all nuts and bolts of components, lubricating moving parts with petrolium jelly & toping up of / filling SF-6 gas to achieve required gas pressure (Minimum 6 Kg/CM2 ) in the breaker as directed and testing complete and keeping it on load complete all as specified and directed.

Supply, installation, testing and commissioning 33 KV current transformer oil cooled out door single phase, oil immersed and self cooled type of ratio 800-400/1-1-1-1 Amp and class suitable for metering and protection equipment installed on control panels terminal block a complete all as specified and directed below :- ( For 33 KV Vaccum Circuit Breaker) Make :- Automatic electrical/Jyothi/ABB/Crompton/Siemerns/Pragati Electricals Pvt Ltd (a) Normal System Voltage-33 KV (b) Highest System Voltage-36 KV (c) Rated Primary current- 800-400 Amp (d) Rated secondary current- 1 Amp (e) Nos of Core - 4 (f) Core01: Accuracy class 5P10, 10VA, ALF ≥10 (g) Core02: Accuracy Class 1.0, 10VA, ISF ≤ 5 (h) Core 03 Protection core accuracy class -PS,Protection knee point voltage- 300 Volt at lower ratio (j) Core 04-Spare (k) Continuous thermal current rating 120 % of rated primary current (l)Temp rise at rated contineous thermal current over ambient at site - Less than or equal to 45 degree C (m) Insulation Level- 36/70 KV.170 KVP (n) 1.2/50 Micro second impulse withstand test voltage- 170 KV (peak) (o) Short time thermal current rating for one second - 25 KA/1 Second (p) Dynamic Current Rating - 62.5 KA ( peak) (q) Porcelain Bushing type - Hollow Cylinder (r) Creepage distance of HV bushing - 900 mm (min) (s) Primary & Secondary winding material - Copper Make : Kapco/Jyoti/AE

Supply installation, testing and commissioning Potential Transformer (PT) oil cooled out door single phase ( Earthed type) of voltage ratio 33 KV/110 V class 3P - 0.5-3, burden 50 VA insulation level of 70/170 KV complete all as specified and directed below:- (a) Normal System Voltage-33 KV (b) Highest System Voltage-36 KV (c) Rated Primary voltage- 33 KV/√3 (d) Rated secondary voltage- 110 V/√3 (e) Nos of Lt winding 2 (f) Metering Core Accuracy class - 0.5 (g) Metering Core Rated Burden- 50 VA (h) Nos of Phase- Single (Earthed Type) (j) Protection core accuracy class - 3P (k) Protection core rated Burden - 50 VA (l) Rated Voltage Factor - 1.2 continuous & 1.5 for 30 Sec (m) Insulation Level- 36/70 KV.170 KVP (n) Temp rise at rated contineous thermal current over ambient at site - 45 0C (o) Porcelain Bushing type - Hollow Cylinder (p) 1.2/50 micro second impulse with stand test Vol-170 KV (Peak) (q) Creepage distance of HV bushing - 900 mm (min) (r) Primary & Secondary winding material - Copper Make :- Automatic electrical/Jyothi/ABB/Crompton/Siemerns/Pragati Electricals Pvt Ltd

Supply & Fix in replacement lightening arrester SMX type complete with all fittings transmission class , 36 KV 10 KA 50 Hz or equivalent models of ABB/Siemens / Areva complete with all connection and testing on full load .

M&L for earthing complete including necessary excavation and earth work in any type of soil with galvanized steel earth plate electrode size 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtrs below ground level) with top edge of the earth plate not less than 1.5 mtr below normal ground level connected to galvanised earth strip 32x6 mm by means of bolts nuts check nuts and washers of galvanised iron or steel all as shown in electrical plate No.5 of MES SSR Part-1 connected to main switch board or main control board all as specified and testing on completion including provision of earth wire protected by galvanised iron 40 mm dia. light grade pipe and watering pipe shall be 20 mm ore medium grade PCC pipt with pre cast RCC cover, charcoal/salt funnel etc. complete all as specified and directed. Note : The conctrete pit shall be PCC 1:3:6 type C1, 40 mm thick PCC slab of RCC (1:2:4) type B-1 using 20 mm graded stone aggregate reinforced with 8 mm TMT bars on both sides with suitable cast iron handle shall be provided in lieu of cast iron cover shown in electrical plate No.5 of MES SSR Part-1 (ii) PCC pits shall be provided atleast 500 mm away from the pit and not on the earth pit itself and the extra cost of additional length of watering pipe, bends, elbows etc shall be deemed to included in the quoted rate. (iv) Item includes the cost of 7.5 m length earth strip.

M/S RAJ KUMAR SINGH

Rajindera Enterprises

m/s gupta trading