Electrical work

Amount

Solar PV Module: Supply, Installation & Commissioning in position of 64kWp of Solar module that offers high level of module output, well equipped with efficient crystalline cells and have proven their worth in practical applications & characterized by high yields,long service life, their production is certified inaccordance with ISO 9001 international high quality standard. Modules must qualify to IEC 61215 / IS 14286 and IEC 61730 Part I and II for safety qualification testing or Equivalent IS(Under Dec.) & IEC 61701/IS 61701. Each PV module must have RF identification tag (RFID). >16% Efficiency, IP65 protection, 90% output for first 10 years, 80% output for 25 years. PV Module Type : Mono PERCPV Module Watts : 550PWp : MNRE approved– JACKSON/ TATA POWER / EQUAVALENT Supply, Design, Installation and Commissioning of ON Grid INVERTER MAKE Growatt/Equivalent Normal Salient Features of Inverter: Maximum Efficiency 99%, Dual MPPT trackers, Anti-PID functionType II DC and AC SPDs String fuse and string monitoring and Supports Export limitation. Supply, Design, Installation and Commissioning of ON Grid INVERTER MAKE Growatt / Equivalent Power Conditioning Unit: The PCU shall also house MPPT (Maximum Power Point Tracker), and interface between Solar PV array & the Inverter, to maximize Solar PV array energy input into the system. PCU & protection PCU including MPPT & protection conform to IEC 61683/IS 61683, IEC 60068 - 2 (1,2,14,30) / Equivalent BIS Std. as per specifications. PCU refers to combination of charge controller, inverter shall be supplied as integrated unit or separate units with IGBT/MOSFET,

and MPPT based PWM charger, Input from Solar Array has been 24 V (nom)- 10% to + 15%. Protection has been input Over voltage, Low/High frequency, Short circuit. Load surge current, Over current, Under/over output voltage, Over temperature, Over voltage with auto recovery, indication has been Inverter 'ON' and over temperature. Should Also include Data Acquisition System with remote monitoring system Capacity: 50Kw - 1 No /Three Phase (each 1 unit) Inverter efficiency: 98.3% Inverter weighted efficiency: 97.9% Module Mounting Structures : The PV modules will be mounted on fixed metallic structures of adequate strength and appropriate design which can withstand load of modules and high wind velocities upto 160 km per hour. The support structure used in the power plants will be hot dip Galvanized Iron ( G I) with 2 m thickness. The modules support structure shall be hot dip galvanized for holding the PV modules. The legs of the structure shall be fixed and grouted in the PCC foundation column made with Leg 4ftx2ft ; 100 x 50 : Rafter 2ft x 2ft ; 50x50 : Purlin 1 1/2 ftx 1 1/2 ft : 40 x 40 with tilt angle 11 degree to 12 degree. Each 20 FEET X 16 FEET sizes. It Mount 10 nos 550kwp.The foundation shall support SPV modules at a given orientation, absorb and transfer the mechanical loads to ground properly and shall withstand maximum wind speed of 160 km/hr. Total weight of the steel structure shall not be less than 150 Kgs (each 1 unit) with installation.

DCDB: DC Distribution panel is needed to receive the DC output from the array field, with analog measurement panel for voltage, current from different MJBs so as to check any failure in the array field. It shall have MCBs of suitable rating for connection and disconnection of array sections. Array Junction boxes with fuses and Surge Protection. Devices with lightning and over voltage protection with thermo plastic IP65 protection junction boxes for cable termination points for dentification. 2 In 2 Out │ IP65/66 PC Enclosure with 1000V 12A fuse at each Positive I/P │ Terminal Block at Negative I/P and 2P MCB │ Type-2 40kA SPD at each Output │ MC4 Compatible Connectors at both input and output terminals. (each 1 unit) DC Cables: Supply and run 2 of 4sq.mm DC copper Cable PVC or XLPE insulated and PVC unsheathed single or multi core cable with minimum 6 sq.mm in suitable PVC rigid pipe on wall from PV array to DCDB AC Cables: Supply and run of 4 of 35sq.mm armored aluminum PVC or XLPE insulated and PVC unsheathed single or multi core flexible cable with Voltage rating 1100V UV stabilized Copper Cable in suitable clamping on wall.

ACDB: It shall be provided in between PCU and loads; It shall have MCB of suitable rating for connection and disconnection of PCU from load. It shall have MCBs to supply power to control room loads such as existing loads.It shall have AC voltmeter, Ammeter, Energymeter to record energy supplied to loads. It Shall be mounted close to the Grid-Tie Inverter with thermoplastic IP65 protection for cable termination points for identification. Earthing: The array structure of the PV yard shall be grounded properly using adequate number of Earthing kits shall done in accordance with IS 3043 that Earthing should be Free maintenance earth for AC and DC side separately. Components used for earthing,8SWG Copper Wire,10Sqmm Copper Cable, Free maintenance Earthing kit for AC side, DC side, Structure array & Lightning arrester (each 1nos of Earthing kit).Lightning Arrester: The SPV power plants shall be provided with lightning & over voltage protection. The main aim in this protection shall be reduce the over voltage to tolerable value before it reaches the PV or other sub system components. The source of over voltage can be lightning, atmosphere disturbances etc.Protection of Buildings and allied structures against lightning protection. Used components are Copper Lightning rod, Copper Wire 8SWG (each 1 unit)

Supply and clamping of 3-1/2 X 35 sq.mm. PVC LTUG armoured cable on post or on wall with MS clamps

Supply and fixing of brass cable gland for 3-1/2 x 35 sq.mm. PVC armoured LTUG cable with earth connection

Supply and providing cable end termination of 3-1/2x35sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc with electrical connection complete

Supply and fixing of 125A Break switch in sheet steel enclosure on suitable angle iron frame with MS cable entry boxes with necessary earth connection.

Net metering: Solar Net metering to be implemented for existing TANGEDCO service connection, meter need to be replaced that can measure both energy imports (from the grid to consumer) and energy export (from the consumer to the grid), CEIG approval. Zero export meter and approvals Charges.

Aruna Electricals (BID ID -1185182)