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| 1 | Design, procure, supplying, erecting, install, testing and commissioning including topographical survey and connecting to local utility grid; Grid connected Solar Photo-Voltaic (PV) plant of 15.4 KW capacity (Solar Tree)including solar photovoltaic Module, DC cabling, AC Cabling, MCCBs, ACDB, DCDB, Bidirectional meter/ Solar Generation meter, Module Mounting Structures, Combining Boxes, Nos of earthing, Lightning Protection of SPV modules and other accessories, string inverter, consisting of following main componenets & following details of the site: - MNRE Approved (DCR type) complete all as specified and directed by Engr-in-charge. |
| 2 | Design, procure, supplying, erecting, install, testing and commissioning including topographical survry and connecting to local utility grid; Grid connected Solar Photo-Voltaic (PV) plant of 39.6 KW capacity (Roof Top Solar)including solar photovoltaic Module, DC cabling, AC Cabling, MCCBs, ACDB, DCDB, Bidirectional meter/ Solar Generation meter, Module Mounting Structures, Combining Boxes, Nos of earthing, Lightning Protection of SPV modules and other accessories, string inverter, consisting of following main componenets & following details ofBldg Roof: - MNRE Approved (DCR type) complete all as specified and directed by Engr-in-charge. |
| 3 | Note for Ser No 1 & 2 :- The contractor must visit the site before quoting the rates for assess the site condition so as to decide up on location and layout of Rooftop /Solar Tree SPV to the SNCOs Mess Complex, placement of inverter, length of DC cables, length and size of AC cable, Rating of MCCBs, ACDBs, DCDBs, Nos of earthing & lightning arressters etc complete.2. The contractor shall submit complete Design, scheme including electrical diagram of the work, schematic diagram, SPV module layout, Civil work viz etc complete as per SECI latest guidelines as applicable IEC, ISand shall be vetted from any MNRE approved organisation/ IIT/NIT/ Govt Research institute. The Approveddesign shall be submittto the GE with in one month of date of commencement of the work. 3.The bidder shall carefully design & accommodate requisite numbers of the modulesin the available area (refer topographical survey) to achieve the rated power in his bid. |
| 4 | Note-: Shadow analysis report of the site has to be submitted along with topographical survey. The same shall be incorporated in designing in designing of Solar Plant in PV syst/ PV sol/ NREL software.(i) Grid connected Solar Tree/Roof Top Photovoltaic ( PV) plant of capacity 55KWp on SNCOs complex Area and cumulative capacity of inverter as per requried.(a) Mono Crystaline Silicon Solar Photovoltaic minimum of >550Wp capacity having efficiency 19.00% min under standard conditions, form fill factor more than 0.74, plant performance ratio > 75% , made of high transmitivity glass front surface and it shall give high encapsulation gain ( transmittance above 90% and bending less than 0.3%). The electrical parameters of SPV modules under standard test condition of irradiance 1000 Watt/ sqm2, AM 1.5 Spectrum and temp 25 degree Celsius shall be as under :- (i)Max Peak Power Pmax > 550W Voltage at Max Power Mono Crystalline type.(b) Rated output of the modules shall have positive tolerance of 3-5% and no negative tolerance is allowed.(c) It shall perform satisfactority in RH 85% with temperature up to +85 degree C and should withstand wind of 150 kmph on the surface of panel. |
| 5 | (d) PVmodules shall be warrented for their output peak watt capacity, and it shall not fall of its initial value below 90% in first 10 year end and 80% after the end of 25 years.(e) Each PV module must use a RF identication tag (RFID tag) encapsulated with solar cell bearing following details: (i)Name of manufacture of SPV Module. ,(ii)Name of Manufacturer of solar cell and module,country of Origin, Month & Year of the manufacture ( both cell and module).(iii)Peak wattage, Im, Vm and fill factor (FF) of the module IV curve of module.(iv) RFID shall be mandatorily placed inside the module laminate(f) PV modules must confirm to latest edition of IEC 61215/ IS 14286. In addition the modules must confirm to IEC 61730 Part I and II for construction and testing & safety qualifications and confirming to IEC 62804 PID.(g) It shall also be in confirmity to latest minimum technical specification issued by MNRE from time to time. Modules should be of 72 cell configuration and should be ofMNRE approved companies/agencies in category/ rating \"SA-1A\" . |
| 6 | (h) Provision of earting and earth strip/ cable etc for earth of solar Pvmodule/ array etc as per latest IS/MNRE norms to be provided and cost of the same is deemed to be included in the item and no extra amount will be paid to the contractor on this account.(j) Both cell and SPV modules shall be made in India and must conform to DSR norms of MNRE(l) Balance of system (BOS) items/components: The BOS items/components of the SPV power plants/systems deployed under this project must conform to the latest edition of IEC or equivalent BIS Standards /MNRE specifications / as specified para 1.01 of minimal technical equirements/standards for SPV system/plants to be deployed during this financial year under the programmes of MNRE available on MNRE website as on last date of quoting of tender. |
| 7 | (m) DC Cables & AC Cables:-Suitable size of XLPE AC/DC cable insulated tinned copper cable of solar grade, 1100 volt and UV resistant for outdoor installations confirming to IEC 60227/15694 & 60502, IS 1554 (PartI & II) of minimum size 6 sqmm.All cables and connectors for use of installation shall be of solar grade which can withstand harsh environmental conditions including high temperature, UV radiations, rain, dirt,burial and attack by moss and microbes for 25 years and voltage as per latest IEC/IS. . (i)All the cables/ wires shall be provided with UV resistant printed ferrules for DC side.(ii)The size of the cable shall be such that average voltage drop at full power from PV module to inverter shall be less than 1.5%.(iii) The AC cables along with AC DB with necessary arrangement to connect with the existing power supply to be done.(iv)The size of XLPE LT cable To be got approved by Engineer in charge. Suitable electronic smart meter To be fixed to measure generation of electricity. Cable batch No,drum No, IS code and size and make shall be metioned on every one meter or as per OEM practice |
| 8 | (v)The wiring of the module interconnection shall be in suitable size UPVC/HDPE pipe. (vi)The cost of interconnecting DC copper cable, and earth work for trenches suitable to accommodate solar grade cables from SPV module upto inverters are included in the item. Make: Lapp, Havells, Polycab, Leoni, Siechem Module Mounting Structure:- (i)Design, procure, fixing, support structure made of hot dipped galvanisized iron with min 85 micron thickness including necessary PCC foundation and associated work and fixing mounting arrangement suitable for SPV modules so as it can withstand wind speed of 150 KM per hour.(ii) The array mounted structure has to be so designed that it occupies minimum space without sacrificing the output of SPV panels, Nuts, bolts,mounting structure including module mounting structure shall have to be adequately protected from atmosphere and weather prevailing in the area.(iii)All the modules fixing fastners shall be of stainless steel of grade SS316.The module mounting structure to be fixed tilt to optimise the maximum generation in a year. |
| 9 | (iv) MMS design shall be supported with stadpro report and submitted for the approval of the accepting officer. (v) Cost of all equipments, copper strip up to earth test point and earthing etc are included in this item.(vi) The cost of sufficient earthing for lightning protection is included in this included in this item and no extra payment will be made to the contractor on this account.Note :-(i) Structural design of the mounting structure should be carried out by aconsultant, approved by the GE.(ii) Water Leak Protection has to be ensured, Pure Epoxy Resin based Chemical anchoring system.Any damage done to water proofing/roof structure during installation shall be made good by the contractor at no extra cost. |
| 10 | String Inverter (Grid Tied Inverter) :- (a)Supply, Procure, fixing, testing and commissioning of suitable cpacity to each Bldg (Total capacityis 55 KW),50+3 Hz (min) 3 phase 415-433 Volt, THD< 3%, at nominal power inverter suitable to convert DC power of solar PV module/ arry/ to AC for further feeding to grid confirming to IEC 61683 for efficiency, IEC 62109 or equivalent for safety and IEC 62093 for reliability. The input DC technical specification of inverter. The microprocessor based inverter capacityshould be as per roof top solar photo voltaic (PV) plant or next higher capacity having following specifications:-(i)Ambient temp : 4° C to 60° C(ii)Relative humidity : 0-100 % non condensing (iii)Environmental condition: outdoor, wet location(iv)Protection degree : IP-65(v)Pollution degree : IV (vi)Safety class : class I metal enclosure (vii)MPP Tracker 2MPP trackers (viii)No. of inputs minimum 4 no\"s MC4 Input (DC):-(i)DC Voltage Range: 575-850 Volts(ii)Max DC Voltage: 1000 Volts(iii)Max DC Current : 82.0 Amps |
| 11 | Output AC :-(i)Nominal Power : (ii)Max output power : (iii)Nominal AC current : as per standards (iv)Nominal Output Voltage: 415-433 Volts (v)Output Frequency : 50 Hz(vi)Harmonic Distortion current : < 3%(vii)Efficiency : 98.3%(viii)Standby operation consumption (feed in) : < 20 W(a)The inverter shall operating temperature up to 85 degree centigrade.(b) The inverter shall adjust voltage and frequency levels to suit the grid .(c) The inverter shall have minimum IP 65 protection, ground fault monitoring, gridmonitoring , protection against anti-islanding, DC reverse polarity, surge protection, frequency, AC and DC short circuit current and over current, AC and DC over voltage and temperature |
| 12 | (d)The inverter shall be selfcommulated with Pulse Width Modulation (PWM) technology and shall be capable of synchronise maximum with in one min. Maximum Power Point Tracker(MPPT) confirming to IEC 62093 shall be integrated in the inverter to maximum the energy drawn from the PV array(e)The inverter shall be suitable nos of protected inputs (as per design) and outgoing shall be protected by Surge protections (MOVs) .The inverter shall be provided with protection class I (IEC 62103) (f)The inverter should have MODBUS, PROFIBUS, ETHERNET comn ports .(g)The inverter shall include appropriate self protection and self diagnostic feature to protect itself and the PV array from the damage in the event of the inverter componant failure or from parameters beyond the inverters safe operating due to internal and/or external causes(h)The Inverter shall have protection arrangement against ground leakage faults, over voltage, (SPD) & over current(j)The inverter should interfaces with Ethernet, RS485, irradation and temperature sensor, Auxilary equipment and power supply, external stop signal. Should have residual monitoring system. |
| 13 | (k)The inverter should have provisions of Galvanic isolation, antiislanding. (l)The inverter must have the feature to work in tandem with other similar inverter and be able to be successively switched ON and OFF automatically based on solar radiation variations during the day.(m) No load losses less than 1%,Protection against DG set run & grid isolationNote:- Inverter shall be capable of synchronisation with grid supply and DG Set supplyMake: Sungrow, Growatt, Poycab, Powerone, Wattpower Metering arrangements:- (A) Suitable dual metering arrangements with recording facility shall be provided. The metering arrangements must have feature to measure and record.(i)Parameters of KW,KWh,KVAR,voltage,current,PF and any other metering required to determine efficiency and efficacy of the system.(B)LT 3 Phase 4 Wire Electronic Tri vector Meter with CT ratio should be as percapacity of SPV plant. |
| 14 | (i) Standard: IS 13779:1999 / CBIP 88 (ii) Accuracy: Class 0.5(ii) Reference Voltage - 3 x 240 Volts(iii) Basic Current (Ib) - 5 A(iv) Maximum continuous current (Imax) - 10 A(v) Rated Frequency (variation) - 50Hz (±5%)(vi) Power consumption:- Voltage circuit: Less than 1.5 W and 10 VA per Phase at reference voltage, reference temperature and reference frequency Current circuit: Less than 1 VA per phase at basic current, reference frequency and reference temperature(vii) Display type: 8 digit 7 segment backlit LCD display, not less than10 mm character height(viii) Display in the event of Power Failure: Internal battery back-up for LCD display(ix)Communication port: Galvanically isolated Optical Communication port for data transfer through either CMRI or remote device or both is provided with RS 485 for DLMS protocol(x) Energy recording – Unidirectionai |
| 15 | (C)CT/ VT operated energy meter with following features:- (i) True four quadrant metering (ii) Import/ export metering and forwarded metering option for LT/HT systems (iii) Time and day metering with maximum demand registration and automatic billing (iv) LCD display with annunciators for various critical events(v) Scroll lock feature for continuous display of a desired parameter on display (vi) High resolution energy display mode for dial test (vii) DLMS protocol for meter reading, with option to remote reading port. (viii) Advanced event detection features for voltage, current and magnetic influence (ix) Meter reading in absence of mains, using internal battery |
