REPAIR / MAINT OF TRANSFORMER HT SWITCH GEAR, VCB, RMU AND CONNECTED WORK AT AF STN CARNICOBAR

Amount

Disconnecting electrically indoor/outdoor stepup/stepdown transformer of capacity upto 1000 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 .

M&l for draining out complete transformer oil from transformer upto 1000 KVA capacity at site which found mainor 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 of core assembly, after mainor repairs its fixing in original position, or for major repairs transformer to make it ready for transportation to carry out rewinding work in workshop.

Transportation of unserviceable transformer of capacity upto 160 KVA from site 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) complete all as specified and directed .

All as per item No 3.00 above but of capacity above 200 KVA to 250 KVA

All as per item No 3.00 above but of capacity above 315 KVA to 400 KVA. Note for Srl item no. 3.00 to 5.00: (i) The transportation charges shall be borne by contractor and shall be quoted accordingly. (ii) The transportation bills shall be submitted before claiming payment through RAR/ Final bill.

Shifting of serviceable transformer of capacity upto 160 KVA from MES store Yard/Sub Stn (indoor/outdoor) for installation in place of unserviceable transformer and back after replacing with repaired transformer

All as per item No 6.00 here-in -before but capacity of transformer 200 to 250 KVA.

All as per item No 6.00 here-in -before but capacity of transformer 315 to 400 KVA.

Material and labour in factory 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 for transformer of capacity upto 160 KVA . After dismantling of Transformer and physical joint inspection of core coil assembly (removing all 3 limbs HV &LV winding from Core Assembly) washing of core assembly by hot oil for removing brunt carbon and copper particals and cleaning of complete top yoke by oil. reassemble of complete core assembly and core coil assembly providing new coils and new tap leads of tap changer including requisite insulation material. Re Tanking tightening of top cover fixing of HV & LV Bushing, tap changer connection, WTI & OTI Connection and CT connection. Filling of oil, conservatior tank ready for final testing all as directed in presence of rep of MES.

All as per item No 9.00 here-in -before but capacity of transformer 200 to 250 KVA.

All as per item No 9.00 here-in -before but capacity of transformer 315 to 400 KVA. Note : (A) In case of replacement of LV / HV bushing / spindles / rewinding of HV / LV coils / top changer etc will be paid separately under respective items (B) Following test shall be conducted before installation & commissioning. (i) Insulation Resistance Test (by 5000 V megger) (ii) Ratio Test (ii) Double voltage & double frequency Test (iv) Transformer oil value BDV test (v) Tap changing test of load for all tap position .

Supply only HT coils for rewinding 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 coils of 11 KV trasformer complete. Note : (i) The rate quoted against these items is inclusive necessary provision of all types of insulating materials , heating and varnishing etc.

All as per item No 12.00 here-in-before but LT coils with copper strips.

M&L for ON load Centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine of 11/0.433 KV transformer at site and topping up deficient transformer oil including testing of samples before and after dehydration and filteration complete all as specified and directed. Note :- Deficient quantity of Transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only.

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5mm gap for filling in transformer or for topping up as required and directed

Supplying and fixing in replacement (at site/workshop), Porcelain Transformer bushing on LT (440 Volt) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 160 KVA and re-connecting electrically and mechanically, testing complete all as specified and directed. Note:The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and suitable size pad type bus bar almuminium and nut bolt washers etc.

All as per Serial item No 16.00 here-in-before but capacity 200 KVA to 250 KVA

All as per Serial item No 16.00 here-in-before but capacity 315 KVA to 400 KVA

Supplying and fixing in replacement (at site/workshop), Porcelain Transformer bushing on HT (11 KV) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 160 KVA and connecting electrically and mechanically, testing complete all as specified and directed. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and suitable size pad type bus bar almuminium and nut bolt washers and reconnection

All as per Serial item No 19.00 here-in-before but 200 KVA to250 KVA

All as per Serial item No 19.00 here-in-before but 315 KVA to 400 KVA

Repair to tap changer switch including replacement of unserviceable parts such as bakelite sheet, connecting rod with nuts, bolts, and washers, HV lead duly taped, provision of glass sleeve of required size & length including necessary welding works of transformer capacity up to 1000 KVA

Supply and Fixing in replacement of tap changer switch complete with handle for transformer of capacity up to 400 KAV

Supplying and fixing in replacement, Silica Gel Breather assembly including vent pipe and Silica Gel for indoor/outdoor transformers, capacity upto 160 KVA complete all as specified and directed.

All as per Serial item No 24.00 here-in-before but capacity 200 KVA to 250 KVA

All as per Serial item No 24.00 here-in-before but capacity 315 KVA to 400 KVA

Supply and fixing 3mm thick Sheet glass (each not exceeding 0.9 Sqm) ordinary quality and glazing with oil putty on cabin of OTI and WTI gauge of transformer upto capacity 1000 KVA complete all as specified and directed.

Supply and fixing Thermometer of transformer capacity upto 1000 KVA complete all as specified and directed.

Material & Labour for painting of transformer of capacity upto 250 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SM No, MES and capacity of transformer complete all as specified and directed.

Material & Labour for painting of transformer of capacity 315 to 400 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SM No, MES and capacity of transformer complete all as specified and directed.

Material & Labour for painting of transformer of capacity 630 to 1000 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SM No, MES and capacity of transformer complete all as specified and directed.

Disconnecting electrically & mechanically outdoor transforemrs upto 1000 KVA capacity, lowering down/getting out from plinth carefully for repairing /making of plinth of transformer and re- connecting electrically and mechanically after repairing/making of plinth , testing and commissioning complete all as specified and directed. Note:- (a) The rates quoted is deemed to be included for hydra, men power and other items required for temp energization of transformer. (b) Plinth work shall measured and paid separetely under items of sch of work here-in-after.

M & L maintenance free earthing complete with earth electrode of copper bonded low carbon steel core of 3 metre long, 17.2mm dia buried directly in ground and tappered at thebottom (digging or auguring of earth to the required depth as specified and directed) and filling up with carbon based earth enhancing compound in slurry form 30 Kgs bag - 1 No, provision of exothermic welded copper clamp of size 25mm x 3mm x 150mm to the electrode, copper earth strip connected by means of polymer chamber with cover, including necessary excavation in any type of soil, returning, filling in, removal of surplus soil complete all as specified and as directed Note : i) The work shall be executed under supervision of Engineer in charge. ii) Cost of earth strip and GI protection pipe for earth strip shall be measured and paid seperately under relevant items. iii) the unit rate shall include for excavation, returning and filling, removal of surplus soil, polymer chamber with cover and test point. (iv) Contractor to submit the earthing drawing before execution for approval of Engineer in charge

Disconnecting electrically & mechanically indoor/outdoor transforemrs upto 250 KVA capacity, lowering down/getting out from plinth, 4/6 pole Structure carefully for prevednt/stoping for leakage of transformer oil (at site/sub station) including opening of top cover, draining out transformer oil and other items and storing the oil in suitable container (container to be provided by the contractor to keep aside for re -use) including replacement of all unserviceable gasket, after repairing/stoping of oil leakage the same re-connecting electrically and mechanically, testing complete all as specified and directed Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, T&P, hydra, gasket, opening/closing of top cover by unscrewing nut, bolts washers etc.

All as per item No 34.00 above but of capacity 315 KVA to 630 KVA

Supply and fill in replacement silica gel for transformer complete all as directed

Supply installation & commissioning in replacement of maintenance free batteries of capacity 12 Volt of 180 Ah suitable for 11 KV control panel complete all as specified and directed.

Material and labour for comprehensive and preventive maintenance of transformer including taking shout down from main substation and drain out the transformer oil and to be collected in barrel by opening the transformer cover of capacity upto 1000 KVA by unscrewing the nuts, bolts and washers and kept in safe custody and reuse the same, and checking the any type of leakage from both HT and LT side including cleaning the sludge etc depositing in the core and tank by using soft brushes and clean with old transformer oil, refilling of transformer oil including refixing of top cover including nuts, bolts etc and testing the input & output voltage and adjustment of the voltage through tape changer if required complete for entire satisfaction of engineer incharge.

M&L for Repairs/maintenance of 11KV HT VCB Panel of any make and type, size and capacity complete including the following :- (a) Taking out 11KV HT VCB/OCB of 400/630/800 Amps rating trolley from HT Panel after switching off electric supply, checking of mechanical system for proper functioning of upward/downward movement of HT VCB trolley including opening the VCB & checking the quality of insulating. Cleaning & servicing the fixed/moving contact & blowing out dust from bus bar chamber, spout gear mechanism and applying the proper lubrication/greasing and reassembling the VCB connection, testing, commissioning and putting on load complete all as directed. (b) Taking out all types of relay from HT11KV VCB panel and cleaning the contact and adjust the contact. (c) Testing & Calibration the all type of relay e.i. master tripping relay, Over current & earth fault relay, DC supply supervision relay, PT fuse failure relay with testing kit & proper plug setting as per reqd load & time delay and fixing the relay set in HT panels complete all as specified and directed by Engr-in-Charge. test report must be submitted by the contractor. Note - Consumable item will be paid seprately.

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type, of 13.1 KA/Sec having ratio 200/100/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed

All as per item No 40.00 here-in-before but having ratio 150/75/5-5

Supplying, installation, commissioning and testing in replacement of PT unit three phase, three limbs, upto 11 KV draw-out/fix type, resin cast dry type, single ratio having primary voltage 11 KV & secondary voltage 110 volts, 50 VA class-1 including necessary bus bar connections & wiring for metering complete all as specified and directed .

S&F in replacement of LED indication lamp 24/110 Volts for breaker ON/OFF/TRIP/Breaker Spring Charged/R-Y-B etc for 11 KV control panel including associated wiring, if reqd, complete all as specified and directed.

Supply and installation in replacement Anti-condensation space-heater withThermostatic control in cable and circuit breaker compartments of HT switchgears complete all as specified and directed.

S&F in replacement of vacuum interrupter suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of fixed contact complete suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of moving contact complete suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of motor & gear assembly 230V AC suitable for 400/630/800 amps, 11 KV HT VCB including testing & puting on load complete all as specified & directed.

S&F in replacement of spring bearing gear suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of closing coil assembly 24 volts DC suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of tripping coil assembly 24 volts DC suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of panel door lock suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement auxillary switch (7 No + 7NC) suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supply and fix in replacement T&C Switch for Breaker ON/OFF purpose in HT 11 KV VCB panel including associated wiring, if reqd, for proper functioning of switch complete all as specified and directed.

Supplying & Fixing in replacement upper connector suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement lower connector suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement Caution plate “CAUTION MEN AT WORK of size 40cmx15cm made out of white acrylic sheet with Red coloured glow tape.

S&F in replacement of HRC fuse of capacity 20 Amps for VCB complete all as specified and directed

S&F in replacement MCB 20 to 32 Amps DP

S&F in replacement of Digital Volt meter Secondary voltage 110 V for 11 KV VCB Control Panel.

Suplying and laying as replacement in sub station fixing 11 KV electrical insulation mat of size 5 mtr x 1 mtr x 2.5 mm thick specification as per IS 15652 2006

M& L for demolition brick work in cable ducts complete all as directed

M&L Brick work with sub-class 'B' bricks, straight or curved on plan exc 6 m mean radius, built in cement mortar 1:6 for cable duct complete as specified and directed.

M&L Rendering 15mm thick on fair faces of brick work or concrete surfaces in cement mortar (1:4) finished fair and even without using extra cement complete as specified and directed.

M & L for PCC 1:3:6 type C-2 (using 40 mm gradded aggregate) for foundation, filling and mass concrete etc complete all as specified and directed .

S&F Mild steel chequered plates Fe 410-W (Gde-E-250) quality on cable duct cut sizes as required on site 8 mm thick in replacement PCC duct cover complete all as specified and directed.

Supply and fixing of Operating mechanism of 11 KV RMU for Earthing switch of VCB.

Supply and fixing of Operating mechanism of 11 KV RMU for spring charging of VCB

Supply of Operating mechanism interlock of 11 KV RMU for Operation + Earthing switch of VCB

M&L for copper sulphate for enhance the conductivity of soil including pouring water as required in any loaction and necessary excavation and earth work if necessary be included in quoted rate complete all as specified and as directed.

M&L for comman salt for enhance the conductivity of soil complete all as specified and as directed.

Testing of earth resistance value monthly / quaterly / half yearly of any type of earth pits in any location with qualified electrician with helper including earh resistance testting equpment and record the value of earth resistance as per formate given by Engr-in-charge and submite the test report complete all as specified and as directed. Note:- (i) the earth tester providee by the contractor included in the quated rate. (ii) The stationary required for record the values is deemed to include the quated rate. (iii) The watering arrangement for qouring in earth pits for enhance the value to be included in the quated rate

M&L for Copper earthing complete with copper earth plate electrode of size 600mx600mmx3.15 mm, buried directly in ground (earth pit not less than 2.25 mtr deep below normal ground level) with top edge of earth plate not less than 1.5 mtr deep below normal ground level, connected to copper earth strip 20x3 mm by by means of bolts, nuts, check nuts and washers of brass or steel and copper earth strip and connected to earthing test point / distribution board/equipment's or any other indicated situation all as shown in electrical plate No 3 of SSR Part I (2009) and testing on completion including necessary excavation in any type of soil, returning filling, removing of soil and 1.5 mtr length GI medium grade 20mm dia pipe with funnel and wire mesh, PCC chamber of 1:2:4 type B1 using 20 mm grade stone aggregate, 40 mm thick RCC 1:2:4 type B1 using 20mm graded stone aggregate and reinforced with 8mm dia TMT bars at 150mm c/c on both ways pre cast chamber cover with lifting handle 16mm dia round bars, Gi pipe medium grade 40 mm dia for earth strip protection including charcoal, common salt complete all as specified and directed. (Note:- Copper strip above to 7.5 mtr long shall be measured and paid separately)

Material and labour for emergency maintenance work for HT/LT supply system during breakdown by deploying skilled labour and electricians at faulty site having gang of minimum 4 persons including transportation and other tools and plant required at site for fault rectification. Note:- Contractor or his rep shall come to the site of breakdown within two hours of notification of breakdown. In case the contractor or his rep did not attend the site of breakdown and start attending breakdown within two hours, a penalty of Rs 500 per fault per hour shall be imposed over contractor and shall be deduct from his dues.

Disconnecting LT electric Supply from panel board and servo voltage stabilizers of capacity up to 150 KVA for repairs

Opening of top cover for Voltage Stabilizers of capacity up to 150 KVA, testing these for confirming to fault, draining out transformer oil in dry and clean container and keeping it in safe custody for reuse and dismantling/taking out of following unserviceable parts including replacement of other spares:- (a) Dimmer assembly of Voltage Stabilizer. (b) Series transformers of servo voltage stabilizers.

M/L for Electronic card single phase 230 V AC, 50 Hz in replacement of capacity up to 180 KVA Servo Voltage Stabilizer

M/L for Electronic Cut off Circuit AC single phase 230 Volts, 50 Hz (low/high) in replacement of capacity up to 150 KVA Servo Voltage Stabilizer

M/L for push Switch single phase, AC 230 Volt, 50 Hz in replacement of capacity up to 150 KVA Servo Voltage Stabilizer

M/L for DPDT toggle switch's Single phase 230 V AC, 50 Hz in replacement of capacity up to 150 KVA Servo Voltage Stabilizer

M/L for Digital volt meter of 0 to 500 Volt AC Digital type in replacement of capacity up to 150 KVA Servo Voltage Stabilizer Make- L&T/AE/GE

M/L for power contactor 300 Amps ( ML-12) of capacity up to 150 KVA Servo Voltage Stabilizer. Make- L&T/ AE/GE

Rewinding of Series transformer of capacity up to 150 KVA Servo voltage stabilizer including opening, removing the burnt copper winding after testing and rewinding with super enamelled copper wire of approved quality of existing gauge, including assembling with replacement of unserviceable parts and testing for satisfactory operation complete including transportation of unserviceable series transformer from site to workshop and return back for installation it on original position/location after rewinding from workshop complete all as specified and directed by Engineer in charge. Note: Rate is deemed to be inclusive of transportation, T&P and man power

Rewinding of Dimmer of capacity up to 150 KVA Servo voltage stabilizer including opening, removing the burnt copper winding after testing and rewinding with super enamelled copper wire of approved quality of existing gauge including assembling, and testing for satisfactory operation complete for R & Y phase including transportation of unserviceable Dimmer from site to workshop and return back for installation it on original position/location after rewinding from workshop complete all as specified and directed by Engineer in charge. Note: Rate is deemed to be inclusive of transportation, T&P and man power.

Servicing of Servo Voltage Stabilizer of capacity up to 150 KVA cleaning with CRC removing dust particles from spout gear mechanism and moving parts, tightening all nuts and bolts, insulation of all wires, over-hauling, lubricating with fresh grease including assembling operation and putting on load complete

Assembling of servo voltage stabilizers in all aspects, filling of old transformer oil including top up the level and transporting repaired servo voltage stabilizer of capacity up to 150 KVA from workshop to its original locations, re-installation, connecting all incoming and outgoing cables of any sizes and testing on full load.

Supply and fixing energy saving environment friendly & robust highbay LED light fitting IP 65 luminaire of capacity 100 watts complete all as specified and directed. Make - Havells Cat No SAUCERNEOP100WLED75760DLTG or equivalent in Philips, Bajaj, crompton as approved by GE.

Supply and fixing LED Post top light fitting 35 watts, with electronic driver unit and LED lamp with secondary optics made in pressure dia cast housing water resistant IP 66 protection including necessary mounting bolts, nuts and washers including taking down u/s fitting complete all as specified and as directed. Make - Havells Cate No Endura Spring 6 PT 35w LED 757PSYMTOTG or equivalent in Philips/ Havells/ Bajaj/ Crompton Greaves as approved by GE.

(c) HMI (i) Color Display with Softkey operation (ii) Start/stop logic for diesel / gas engines (iii) Counters for operating hours / starts / maintenance / active/reactive energy (iv) Configuration via PC (serial connection and ToolKit software (included)) (v) Event recorder entries with real time clock (battery backup) 300 Nos (vi) Operating Temperature (-40° to 70 °C) (d) Protection- (i) Generator: voltage / frequency (ii) Generator: overload, reverse/reduced power

S&F in replacement auxiliary contactors type MX0 40E(4 NO) 24 volt

S&F in replacement auxiliary contactors type MX0 20E(2 NO+ 2 NC) 24 volt

ISLAND SALES ENTERPRISES

M/s Karbhagam Sales Agency