Raja Ramanna Centre For Advanced Technology Tender

Design, fabrication, supply, installation, testing and commissioning of ongrid solar power plants suitable to mount on existing metallic structures with following major components (the detailed specifications and ratings of item as per item Sr. no. 1.1 and 1.2 below) : a) Mono-perc crystalline-si Solar PV module combination, module frame shall be made of anodised aluminium alloy. Minimum total kWp rating of module array shall be as per specific item rating. b) On Grid solar Inverter, suitable for wall mounting, having suitable numbers of MPPT & and LAN based communication module in line with design of solar power plant. The inverter output shall be three phase 415V AC & suitable for single phase 230AC 50 Hz. Minimum kVA rating of string inverter shall be as per shall be as per specific item rating. c) Array Junction Box (AJB)/ String Combiner Box (SCB) rated for 1000V DC switchgears, IP 65, dust, water & vermin proof, UV resistance shall be equiped with Surge protective device (SPD), DC Fuses, Bus-bars/cables and made out of weather proof prefabricated poly carbonate material. All wires/cables must be terminated through Copper tinned cable lugs/MC4 connectors. d) AC distribution box shall be provided for distribution of AC power from output of inverter. This DB shall be equiped with Class-II IEC Surge protective device, earthing terminal, 415V four pole RCBO with overload and leakage current protection. Min. rating of RCBO shall be 32A, 100 mA for 10 kWp system and 100A, 100 mA for 50 kWp system. e) Microprocessor based Energy Solar net meter of suitable rating housed in a meter box with transparent inspection cover & fuse protection. Display parameters of this energy meter shall be LCD test, kWh generation export recording, Date & Time, AC current and voltages and power factor. The Cumulative kWh will be indicated continuously by default & other parameters through push-button. f) Suitable earthing network of apropriate sizes of earth conductor. All the components of installation shall be earthed properly. g) Cabling work from PV module to AJB, AJB to inverter and inverter to ACDB with proper end terminatiosn for AC and DC shall be in the scope of work. The DC cables from the SPV module array shall run through a UV-stabilized good quality PVC conduit pipe of adequate diameter. Underground DC cabling upto inverter includes laying of cables in 50 mm dia HDPE pipe laid 900 mm below ground level. Excavation work in all soils/boulders/murrum/hard rock is included in the scope of work. h) Motorised PV modules cleaning system. i) Installation shall be equiped with Anti bird system for PV modules array. j) Fabrication work of hot dip galvanized G.I. made module mounting structure (MMS) including supports, hardware and purlins. The MMS shall be of adequate stength, balanced & durable, suitable to fixed over existing MS fabricated elevated structures. Working height is upto 08 meters.

50 kWp

10 kWp