WBPWD/EEBED/NIQ-09/2021-22

Amount

Supply, Installation, Testing & Commissioning of 20kwp Solar Photovoltaic Panels. Poly Crystalline 310Wp to 335Wp (Each) (Make: VIKRAM / WAREE / JINKO / SOVA/ ADANI/Tata BP) The PV modules of JAKSON make allowed used must qualify to the latest edition of IEC PV module qualification test or equivalent BIS standards Crystalline Silicon Solar Cell Modules IEC 61215/IS14286 .The rated output power of any supplied module shall have tolerance of +/- 3%.The peak-power point voltage and the peak-power point current of any supplied module and/or any module string (series connected modules) shall not vary by more than 2 (two) per cent from the respective arithmetic means for all modules and/or for all module strings, as the case may be.The module shall be provided with a junction box with either provision of external screw terminal connection or sealed type and with arrangement for provision of by-pass diode. The box shall have hinged, weather proof lid with captive screws and cable gland entry points or may be of sealed type and IP-65 rated.

Supply & Fixing Module Mounting Structure: Hot dip galvanized MS mounting structures may be used for mounting the 10kwp modules/ panels/arrays. Each structure should have angle of inclination as per the site conditions to take maximum insolation.The mounting structure steel shall be as per latest IS 2062: 1992 and galvanization of the mounting structure shall be in compliance of latest IS 4Structural material shall be corrosion resistant and electrolytically compatible with the materials used in the module frame, its fasteners, nuts and bolts.Thiknes of Galvanization shall be more than 75µ. Aluminium structures also can be used which can withstand the wind speed of respective wind zone. Necessary protection towards rusting need to be provided either by coating or anodization.The minimum clearance of the structure from the roof level should be 300 mm [Design to be approved by EIC before fabrication].

Supply, Installation, Testing & Commissioning of 1 Nos. PV Array Junction Box of SURCLE & ENERTECH make for 10kwp: a) The junction boxes are to be provided in the PV array for termination of connecting cables. The Boxes (JBs) shall be made of Powder Coated Aluminium /cast aluminium/M.S alloy with full dust, water & vermin proof arrangement. All wires/cables must be terminated through cable lugs. The JBs shall be such that input & output termination can be made through suitable cable glands.b) Each Junction Box shall have High quality Suitable capacity Metal Oxide Varistors (MOVs) / SPDs, suitable Reverse Blocking Diodes. The Junction Boxes shall have suitable arrangement monitoring and disconnection for each of the groups. Voltage: Max. 1000V DC [Make: Hensel/Spielberg/Citel/ABB/L & T/schneider/Elmax].

Supply, Installation, Testing & Commissioning of ACDB : PV Array Junction Box ACDB of SURCLE & ENERTECH make Designed for 10kWp solar power plant with all protections as per MNRE guidelines. DC DPBs shall have sheet from enclosure of dust & vermin proof conform to IP 65 protection. The bus bars are made of copper of suitable size. Suitable capacity fuse & MCBs/MCCB shall be provided for controlling the DC power output to the PCU along with necessary surge arrestors . AC Distribution Panel Board (DPB) shall control the AC power from PCU/ inverter, and should have necessary surge arrestors. Interconnection from ACDB to mains at LT Bus bar while in grid tied mode.All switches and the circuit breakers, connectors should conform to IEC 60947, part I, II and III/ IS60947 part I, II and III. All the Panel’s shall be metal clad, totally enclosed, rigid, floor mounted, air - insulated, cubical type suitable for operation on three phase / single phase, 415 or 230 volts, 50 Hz.All indoor panels will have protection of IP54 or better. All outdoor panels will have protection of IP65 or better. [Make: Hensel/Spielberg/Citel/ABB/L & T/schneider/Elmax]

Supply, Installation, Testing & Commissioning of ongrid Solar Inverter with load islanding protection facility Rating: 20kw, 3Ph Inverter, Make: HBL / INVT/ Power-One/Kako/Havells. Control : Microprocessor /DSP Capacity .Nominal AC output voltage and frequency : 220/415V, 1 Phase / 3 Phase, 50 Hz . Output frequency : 50 Hz . Max. DC input Power 20kW. MPPT Voltage Range should be 165 – 400V. Output Voltage Range - 220V/415V AC. Grid Frequency Synchronization range : +/- 5 Hz. Ambient temperature considered : -20o C to 60o C. Humidity : 95 % Non-condensing. Protection of Enclosure :: should be IP 20 compatible to IEC 60529 : 2001-02- As per MNRE requirment. Grid Frequency Tolerance range : +/- 5 Hz. Grid Voltage tolerance : 280 V to 480 V. No-load losses : Less than 1% of rated power. Inverter efficiency(minimum) : >93%. Inverter efficiency (minimum ) : > 90%. THD : < 3%. Efficiency Measurement IEC 61683/ Equivalent BIS Std.Environmental testing IEC 60068-2 (1,2,14,30) / Equivalent BIS Std.Interfacing with utility grid IEC 61727. Islanding Prevention Measurement IEC 62116. EMI/EMC : IEC 61000-6-3>16 Amps IEC 61000-6-4<16 Amps. Safety: IEC - 62109-1 (2010/4) C - 62109-2 (2011/6).Battery VDC: 120VDC/192/VDC. Charger Capacity: 50A. (Protections) Over Load For 100% Load Buzzer Indication, 101% above Load Trips and Retry for 4times then Inverter shutdown, Output Short Circuit:Circuit Breaker On Mains, Shutdown on Inverter,Battery Reverse Protection: Circuit Breaker, Low Battery:Load Disconnection, Thermal Shutdown:Below 0°C and Above. PCU Brand ENERTECH / STATCON allowed

Supply, Installation, Testing & Commissioning of System Earthings : Each array structure of the PV yard should be grounded/ earthed properly as per IS:3043-1987. 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. At least 4 nos ground pipe / plate electrod as per PWD schedule for system earthing with soil treatment & earth inspection pit and GI flat of suitable size & quantity should be considered [Make: OBO/Beterman/Gmax].

Testing & Commissioning of all items of this BOQ should comply to the detailed Technical Specification given.

Arrangement of Net metering from WBSEDCL including payment of net meter charge and inspection charge of WEBREDA

Maintanance of the above system as and when required by attending service call for minor fault/breakdown/reseting etc for 2 years

supply and laying 35 Sqmm 4 Core armoured PVC/XLPE Power cable on wall for Grid connectivity

Rates to be quoted will be inclusive of all the taxes incl. GST. No other additional charges will be applicable in addition to the quoted rates.

BSSE India Pvt Ltd

SIKCO ENGINEERING SERVICES

MANDAL BROTHERS

M/S Unique Electricals

TECHNO ENGINEERS AND SERVICES

Environ Energy Services Private Limited