Bangalore Electricity Supply Company Limited (wholly owned Government of Karnataka undertaking)

Transcription

1 Format - 5 Bangalore Electrcty Supply Company Lmted (wholly owned Government of Karnataka undertakng) Telephone : Emal ID : Ref No.: Offce of the.. Date: To, (Name & address of the applcant) Madam/Sr, Sub: Submsson of Techncal detals n respect of your applcaton regstered for nstallng.. kwp SRTPV system. Ref: Applcaton Reg. No.. dtd:... You are requested to select a reputed system nstaller and furnsh the techncal detals of all the equpments proposed to be used n SRTPV system as per format enclosed along wth relevant test reports and certfcates for communcatng approval for nstallaton of SRTPV system as per followng gudelnes: 1. You have to use the nverter from MNRE approved nverter manufacturers only. The lst of MNRE approved nverter manufacturers s avalable at the BESCOM/MNRE webste. Only those nverters whch meet all requred IS / IEC standards shall be elgble for nstallaton. 2. All the other components of Solar RTPV system shall comply wth applcable IS/IEC standards. Lst attached. 3. B-drectonal meter shall be purchased from BESCOM approved vendors and to be fxed at net-meterng pont. 4. Techncal Standards for nterconnecton can be obtaned from BESCOM webste. 5. You have to upgrade nfrastructure (servce lne, meter wth CT, transformer upgrade) f requred, at your own cost. 6. Further nformaton may be obtaned from / Yours fathfully, AEE/Executve Engneer(Ele) C, O&M.. sub-dv/dvson, BESCOM

2 Techncal Specfcatons of SRTPV system BOS Item / System Solar PV modules Modules Applcable BIS /Equvalent IEC Standards / Applcable MNRE Specfcatons Standard Descrpton Standard Number Crystallne Slcon Terrestral PV modules Thn flm Terrestral PV modules Solar PV module safety qualfcaton requrements PV modules to be used n a hghly corrosve atmosphere (Coastal area etc,) must qualfy Salt Mst corroson Testng IEC 61215/IS14286 IEC IEC IEC (P1 P2) IEC 61701/ IS Each PV module must use RFID tag whch must contan nformaton as per MNRE requrements Envronmental Testng IEC (1, 2,14,30) / Equvalent BIS Std. Grd ted nverters Cables Swtches/ Crcut Breakers/ Connectors Juncton Boxes/ Enclosures for Charge Controllers/ Lumnares Effcency Measurements IEC Ingress protecton v Product safety standard v Grd Connectvty standard /Utlty nterface IP 65 (for outdoor)/ IP 21 (for ndoor) As per IEC 529 IEC (2010) IEC (2011) IEC v Ant- slandng IEC Electromagnetc compatblty & v IEC (1,2,3) Electro Magnetc Interference For Testng,, beyond 10KVA self- certfcaton by manufacturers are acceptable General Test and Measurng Method PVC nsulated cables for workng voltage up to and ncludng 1100 V and UV resstant for outdoor nstallaton General Requrements Connectors - safety A.C. /D.C. General Requrements IEC / IS 694 IEC / IS 1554 (Part. I & II) IEC part I,II, III / IS Part I,II,III / EN IP 65 (for outdoor)/ IP 21 (for ndoor) As per IEC 529 In case f the Charge controller s not bult n the nverter, IEC test s requred separately for charge controller.

3 Specfcatons for Inverter Parameters Nomnal Voltage Voltage range Operatng frequency range Waveform Specfcatons of Inverter Detaled Specfcatons 230V / 415V +10% -20% at nomnal voltage 50 Hz ( 47.5 to 52 Hz) Sne Wave Harmoncs AC sde total harmonc current dstorton < 5% Rpple DC voltage rpple content shall be not more than 1%. Effcency Effcency shall >95% Losses Casng protecton levels Temperature Humdty Operaton MPPT Protectons Recommended LED ndcatons Recommended LCD Dsplay on Front Panel Communcaton nterface Maxmum losses n sleep mode: 2W per 5kW Maxmum losses n stand-by mode: 10W Degree of protecton: Mnmum IP-21 for nternal unts and IP 65 for outdoor unts Should wthstand from -10 to +60 deg Celsus Should wthstand up to 95% (relatve humdty) Completely automatc ncludng wake up, synchronzaton (phase-lockng) and shut down MPPT range must be sutable to ndvdual array voltages n power packs Over voltage; both nput & output Over current; both nput & output Over/Under grd frequency Over temperature Short crcut Lghtenng Surge voltage nduced at output due to external source Islandng Inverter ON Grd ON Inverter Under / Over Voltage Inverter Overload Inverter Over Temperature Accurate dsplays on the front panel: DC nput voltage DC current AC Voltage ( all 3 phases) AC current ( all 3 phases) Ambent temperature Instantaneous & cumulatve output power Daly DC energy produced RS485 / RS 232

4 Sl. No Techncal Standards for Interconnecton Parameters Requrements Reference Overall Condtons of Servce Overall Grd Standards Reference to regulatons Reference to regulatons Condtons for Supply of Electrcty of Dstrbuton Lcensees n the State of Karnataka Central Electrcty Authorty (Grd Standards) Regulatons Equpment Applcable ndustry standards IEC standards/is Central Electrcty Authorty 4. (Measures of Safety and Safety and Reference to regulatons, Chapter Electrcty Supply) Supply III (General Safety Requrements) Regulatons, 2010 and 5. Meters Central Electrcty Authorty Reference to regulatons and (Installaton & Operaton of addtonal condtons ssued by Meters) regulatons 2006 and the Commsson. 6. Harmonc Current 7. Synchronzaton 8. Voltage Harmonc current njectons from a generatng staton shall not exceed the lmts specfed n IEEE 519 Photovoltac system must be equpped wth a grd frequency synchronzaton devce, f the system s usng synchronzer nherently bult nto the nverter than no separate synchronzer s requred. The voltage-operatng wndow should mnmze nusance trppng and should be under operatng range of 80% to 110% of the nomnal connected voltage. beyond a clearng tme of 2 seconds, the Photovoltac system must solate tself from the grd. IEEE 519 relevant CEA (Techncal Standards for Connectvty of the dstrbuted generaton resource) regulatons 2013 and Relevant CEA (Techncal Standards for Connectvty of the dstrbuted generaton resources) regulatons 2013 and.

5 9. Flcker 10. Frequency 11. DC Injecton 12. Power Factor Islandng and Dsconnecton Overload and Overheat Operaton of Photovoltac system shouldn t cause voltage flcker n excess of the lmts stated n IEC or other equvalent Indan standards, f any When the Dstrbuton system frequency devates outsde the specfed condtons (50.5 Hz on upper sde and 47.5 Hz on lower sde up to 0.2 sec), the Photovoltac system shouldn t energze the grd and should shft to sland mode Photovoltac system should not nject DC power more than 0.5% of full rated output at the nterconnecton pont. or 1% of rated nverter output current nto dstrbuton system under any operatng condtons Whle the output of the nverter s greater than 50%, a laggng power factor of greater than 0.9 shall be mantaned The Photovoltac system n the event of voltage or frequency varatons must sland/ dsconnect tself wthn IEC standard on stpulated perod The nverter should have the faclty to automatcally swtch off n case of overload or overheatng and should restart when normal condtons are restored Relevant CEA regulatons 2013 and subsequent f any, (Techncal Standards for Connectvty of the dstrbuted generaton resource)