Zilla Parishad Tender

Supply of Offgrid solar PCU Rating : Off-grid Inverter – 1 Nos with nominal DC voltage 48-96 V DC.,Nominal AC output voltage : 230V, 1 Phase, . Output frequency : 50 Hz . Max. DC input Power 6kW. MPPT Voltage Range 60 - 660 VDC. Make: Panasonic/ Siemens /Microtek/ Power One. Control : Microprocessor /DSP. Off-grid Inverter .Nominal AC output voltage : 230V, 1 Phase, . Output frequency : 50 Hz . Max. DC input Power 6kW. MPPT Voltage Range 60 - 660 VDC. Output Voltage Range - 180V - 260V AC. Grid Frequency Synchronization range : +/- 5 %. Ambient temperature considered : -10o C to 55 ℃. Humidity : 90 % Non-condensing. Protection of Enclosure :: IP-21(Minimum) for Indoor. Grid Frequency Tolerance range : +/- 5 %. Grid Voltage tole rance : 180 V to 260 V. No-load losses : Less than 1% of rated power. Inverter efficiency 92%. THD : 3%. Efficiency Measurement IEC 61683/ Equivalent BIS Std.Environmental testing IEC 60068-2 (1,2,14,30) / Equivalent BIS Std. 5 KW, 1Ph Interfacing with utility grid IEC 61727. Islanding Prevention Measurement IEC 62116. EMI/EMC : IEC 61000-6-316 Amps IEC 61000-6-416 Amps. Safety: IEC - 62109-1 (2010/4) C - 62109-2 (2011/6). All above IEC’s should be from NABL/ IEC Accredited Testing Laboratories or MNRE Approved Test Centers/ International laboratories.

Battery Bank Capacity should be 12 V , 150 Ah. Tubular C10 Lb Acid Solar batteries conforming to IEC-61427 & IS-1651 /IS 13369 Standards, low maintenance, stationery at C/10 rate). It will be staged in racks duly painted with acid resistant paint to cover less space.(Make. Microtek/Exide/Okaya solar Tubular)

Supply of System Earthings : Each array structure of the PV yard should be grounded/ earthed properly as per IS:3043-1987. In addition the lighting arrester/masts should also be earthed inside the array field, PCU, ACDB and DCDB should also be earthed properly. Earth resistance shall not be more than 5 ohms. It shall be ensured that all the earthing points are bonded together to make them at the same potential.

Lightning Protection: The SPV power plants shall be provided with lightning &overvoltage protection. The main aim in this protection shall be to reduce the over voltage to a tolerable value before it reaches the PV or other sub system components. The source of over voltage can be lightning, atmosphere disturbances etc. The entire space occupying the SPV array shall be suitably protected against Lightning by deploying required number of Lightning Arrestors. Lightning protection should be provided as per IEC standard. The protection against induced high-voltages shall be provided by the use of metal oxide varistors (MOVs) and suitable earthing such that induced transients find an alternate route to earth.

Supply of Cables DC & AC: Sizes of cables between array interconnections, array to junction boxes, junction boxes to Inverter, Battery to Inverter etc. shall be so selected to keep the voltage drop of the entire solar system to the minimum. The cables (as per IS) should be insulated with a special grade PVC compound formulated for outdoor use. The size of each type of DC cable selected shall be based on minimum voltage drop however; the maximum drop shall be limited to 1%. The size of each type of AC cable selected shall be based on minimum voltage drop however; the maximum drop shall be limited to 2 %. i. Shall meet IEC 60227/IS 694, IEC 60502/IS1554 standards.

Add: GST @18.00 %

Labour welfare cess @1%