REPAIR AND MAINT OF SOLAR POWER PLANT UNDER AGE E/M GE (AF) NO 2 JODHPUR.

HT 33KVA OUTDOOR TYPE CT & PT Material & Labour for removal of bushing & terminals and cleaning CT/PT 33 KV by CTC solution on its insulators and teeths and checking the leakage if any from the CT and refixing the same after replacing the defective/faulty parts and checking the oil level and oil dielectric strength (BD test) and proper connection checking/tightening of control wiring and testing with complete all as specified and directed by the Engineer-in-Charge of the following :- (i) Meggar testing between phase to phase & phase to earth. (ii) Testing the terminal connection and its working for the calibration and tripping of the relay for the protection of HT 33KV line. Make it functional to the entire satisfaction of and as directed by Enginer-in-charge

Supply and fix in replacement of power pack for 33 KV VCB/RMU suitable for incoming supply 220/110 volts and output 110/24 volts DC supply all as per existing with wiring complete all as specified and directed by the Engineer-in-Charge. Note : - The contractor has to visit the site to check the existing system of 33 KV VCB/RMU for installation of power pack unit.

Dismantaling top cover of transformer of capacity 1250 KVA , any make for repair / replacement of HT / LT bushing of transformer , or for replacement of top cover gasket or for inspection of transformer or for internal repairs of transformer all including draining transformer oil as required / upto the required level, re fitting the top cover of transformer after completion of the work including testing complete all as specified and directed by the Engineer-in-Charge. Note - spare parts will be measured and paid seperatelly

Material & Labour for replacement of defective silica gel breather with silica gel complete set 1250 KVA complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for replacement of LT bushing of brass with neoprene rubber bush for Transformer 1250KVA capacities complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for replacement of HT bushing of brass of transformer of capacity 1250 KVA. complete all as specified and directed by the Engineer-in-Charge.

Supply & filling of transformer oil in site for toping up the level of oil having dielectric strength between 55-65 KV during filling after initial filtration of any capacity complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for dehydration /filtration of transformer oil in existing pole mounted/floor mounted transformer/Voltage stabilizer with the help of dehydration/filtration machine to achieve the dielectric strength of transformer oil not less than 50 KV complete all as specified and directed by the Engineer-in-Charge. Note:- (i) Dehydration/filtration machine will be arrange by the contractor and he will make his own arrangement and to carry the machine at various sub stations including vehicle and towing arrangement. The rate shall be inclusive of all above.

Material & Labour for checking of HT 33KV cable of any size by means of HT Cable Fault Locator Machine by requisition for removal of HT cable faults complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in repair cable joint kit for 33 KV grade cable for outdoor termination Heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size 185 sqmm complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in repair Cable joining kit for 33 KV (earthed) grade cable for straight through Heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in trench/wall / pole XLPE insulated PVC sheathed armoured heavy duty HT electric cable with aluminium stranded conductor 33000 volt grade of sizes 185 Sqmm 3 Core complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in trench/wall / pole XLPE insulated PVC sheathed armoured heavy duty LT electric cable with aluminium stranded conductor 1100 volt grade of sizes 185 Sqmm single Core complete all as specified and directed by the Engineer-in-Charge.

Material & labour for repair and maintanance of relay set (O/C and E/F relays) of any make for 33KV VCB panel, removing and refixing (the contacts NO+NC should be cleaned by CTC solution and adjust if electromagnetic) with faulty part replaced and calibrate the relays by relay testing kit & proper setting as per reqd load & time delay and fixing the relay set in HT panels complete all as specified and directed by the Engineer-in-Charge. Notes :- (i) Testing shall be carried out by primary and secondry injection kit. (ii) Spare parts shall be measured and paid separately under supply only. (iii) The tripping system should be in accordance with the incomer of the affected feeder and setting should be maintained such that fault does not carry beyond the particular feeder due to overload, 3 phase fault, earth fault etc. (iv) The VCBs/RMUs are installed at CPH, Tech area, 33 SU Site 1A & SITE 1B and VCBs are of different type of makes installed at site like Crompton Greaves, Alstom,Schneider, Ashida, Siemens,L&T, C&S or any other of relays available on the site.

Material & Labour for in repairs lightening arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp suitable for 13000 volts complete all as specified and directed by the Engineer-in-Charge. .

Supply, fixing, connecting and testing solar module panel, 325 Wp, Model ASP-7-325 complete all as per existing including providing of new nuts, bolts washers etc, in and including dismantling and taking down of exsting solar module and kept aside in safe custody for schedule of credit complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for repair/overhauling of junction boxes (SMBs) as per existing design of inputs and reconnecting of all incoming strings after necessary repair/overhauling of junction boxes by removing of dust/dirt and making SMBs completely functional complete all as specified and directed by the Engineer-in-Charge.

Supply, fixing, connecting and testing of string cables 1500 VDC, 4 sqmm, single core with connector and tie complete all as required at site and directed by Engr-in-charge in and including taking down of old unserviceable string cable complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of string Monitoring cards installed at SMBs of solar Power Plant as per existing Make or model and suitable for fulfill the required data of SCADA system complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of surge protection device, nominal PV voltage 1000 vdc, residual current leakage current to ground < 0.2mA, current withstand short circuit PV 15000A, PV operating voltage 1060 VDC normal discharge current -20 KA max discharge current - 40KA, complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for repair/complete overhauling/Preventive maintenance of ABB Invertor (PVS-800, 630 Amp).installed at solar Power plant by testing/serviciability of all AC Contactors, DC Contactors, Busbars, inverter cabin trolly, control cables, DC Isolation switch, AC Isolation switch, RDCU unit, display unit, Cooling fans, DC/AC cables, disconnecting and reconnecting of cables after sericing, system completely serviceable and functional after preventive maintenance of Inverter,complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for software upgradation of ABB invertor (PVS-800, 630 Amp). installed at solar Power plant by authorised vendor/firm/representative of OEM, system completely serviceable and functional after software upgradation of Inverter,complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of door fan of ABB invertor (PVS-800, 630 Amp).installed at solar power plant as per specification/make/model/type of existing unserviceable door fan installed in inverter, completely serviceable and functional after repalcement of door fans of Inverter,complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of display cable of ABB invertor (PVS-800, 630 Amp).installed at solar Power plant as per specification/make/model/type of existing unserviceable display cable installed in inverter, completely serviceable and functional after repalcement ofdisplay cable of Inverter,complete all as specified and directed by the Engineer-in-Charge.

Excavation in trenches n.exc 1.5 Mtr wide and n.exc 1.5 Mtr in depth in hard/dense soil and getting out complete all as specified and directed by the Engineer-in-Charge.

Returning, filling in trenches including spreading, leveling, watering and well ramming in layers n.exc 25cm complete all as specified and directed by the Engineer-in-Charge.

Removal of excavated material to a distance n.exc 50 mtr and depositing where directed at a level n.exc 1.5 m above the starting point complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for sand cushioning / filling for underground cable protection, filling under floors ,consolidated and compacted with clean dry sand complete all as specified and directed by the Engineer-in-Charge.

Material & Labour for stone slab 40 to 50 mm thick rough dressed jodhpur stone patties/ slab cover in trenches for protection of cable 25 to 30 CM wide and thickness not less than 50 mm in length lay dry abutting each other with gap between adjacent slab not exceeding 10 mm over sand cushioning complete all as specified and directed by the Engineer-in-Charge. .

Supply and fix in replacement of current transformer including testing, calibration of 33 KV single phase indoor, Resign Cast (metering & protection ) for 33 KV VCB/RMU ratio 100/50 / 5-5 Amp complete, IS2705/1992 and IEC 60044-2 and complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of potential transformer including testing calibration of 33 KV single phase indoor, Resign cast PT of ratio 33KV/√3/110/√3 class 1.0, burden 100 VA/Phase insulation level 28/75 KV, voltage factor 1.2 Cont and 1.5 for 30 Sec, confirming to IS-3156 incl suporting insulator complete all as specified and directed by Engineer-in-charge.

Supply and fix in replacement of tripping coil with assembly 110 V AC for 33 KV VCB/RMU complete all as specified and directed by Engr-in-Charge.

Supply and fix in replacement of closing coil with assembly 110 V AC for 33 KV VCB/RMU complete all as specified and directed by Engr-in-Charge.

Supply and fix in replacement of TNC switch 2 pole for 33 KV VCB/RMU complete all as specified and directed by Engr-in-Charge.

Supply and fix in replacement of spring charging motor for 33 KV VCB/RMU complete all as specified and directed by Engr-in-Charge.

Material and labour for repair/ replacement of defective compete control wiring of current transformers, ampere meter, voltmeter, potential transformers, circuits of indoor/Outdoor type 33/11 KV VCB'S using 2.5 sqmm copper flexible PVC insulated wire and suitable size of copper lugs and thimbles and connector and testing complete all as specified and directed by the Engineer-in-Charge.

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