|Tech specs for a standalone roof top solar plant 100 KW|
|IS Codes to follow|
|1. IEC: 61215/IS 14286 :||Requirements for photovoltaic modules|
|2. IEC 61730-I :||Requirements for construction for photovoltaic modules|
|3. IEC 61730-II :||Requirements for testing for photovoltaic modules|
|4. IEC 61683, 1999 :||Requirements for efficiency of photovoltaic modules|
|5. IEC 60068-2-1, (2-2,14,30):||Requirements for Environment capacity for photovoltaic|
|6. IEC 60529:1989+A1:1999 :||Requirements for IP-65 protection of photovoltaic modules|
|7. IEC 62109 :||Requirements for Safety of photovoltaic modules|
|8. IEC 61727 :||Requirements for Grid connectivity of photovoltaic modules|
|9. IEC 60227/IS 694/IEC 60502/IS 1554 (Pt. I & II):||PVC insulated Al/Cu conductor, armored/unarmored cable|
|10. IEC 60947 part I-III/IS 60947 Part I-III/EN 50521:||L V Switchgear.|
For general climatic conditions, refer and comply the specified project site conditions. The power plant shall comply and perform satisfactorily at the design conditions as minimum:
- a) Ambient temperature : 45ºC
- b) Relative humidity : 95% (at 55ºC)
The power plant shall be suitable for continuous operation at rated load for maximum ambient temperature of 45oC and maximum relative humidity of 95%, the maximum temperature and humidity, however, not occurring simultaneously.
SYTEM CONFIGARATION: Utilization Voltage & Variations.
- a) Main Power circuits : 415V ±10% AC
- b) Lighting Power circuits : 240V ±10% AC
- c) Emergency Power Supply : 415V AC from DG Source
- d) Control Power : 240V ±10% AC
- e) Frequency : 50 Hz ±5%
SOLAR PV MODULE:
o The photovoltaic modules should be Mono / Poly Crystalline with a total array capacity of
1.0 KW or respective capacity of Dual Axis tracker. Each module should not be less than 250Wp.
o The photovoltaic modules must be qualified as per IEC 61215(revised) / IS14286 standards and in addition, the modules must confirm to IEC 61730-I requirements for construction & IEC 61730 part-2 requirements for testing, for safety qualification.
o The PV modules must be tested and approved from any of the NABL/BIS/IEC/MNRE Accredited Testing Calibration Laboratories.
o The supplier shall provide performance guarantee for the PV modules used in the power plant w h i c h must be warranted for their output peak watt capacity, which should not be less than 90% at the end of 10 years and 80% at the end of 25 years.
o Necessary I-V curves of the SPV modules are required to be furnished.
o VRLA tubular GEL type batteries confirming to National/ International standards, low maintenance, stationery at C/10 rate.
o It will be stacked in racks duly painted with acid resistant paint to cover less space where ever necessary.
o The Test certificates should be from MNRE accredited Test centers i.e. SEC/ERTL East /ETDC Bangalore/CPRI Bangalore/ERTL North/UL Bangalore/TUV Rhineland/Intertek for the tests as indicated on MNRE website.
o System Autonomy: 1+1 day.
3) OFF-GRID INVERTER:
Power Conditioning Unit of capacity 100 KVA should convert DC Power into AC Power.
Inverter will have following Specifications. It shall:
o Be rated for continuous operation at full load.
o Have Programmable battery management parameters. It should have Temperature compensated battery charging.
o Automatic re-start after over load triggered shutdown.
o Have Continuous battery life and state of health monitoring. It should have Integrated data and fault logging.
o Have Communication with external SCADA/network/PC
o Have facilities like Remote diagnostics, monitoring and reporting via Internet and GSM.
The PCU shall:
o Be equipped with a data logger for collecting & recording the hourly data of grid status particular voltage & frequency.
o Have provision for PCU by-pass arrangement so as to cater load directly through
o DG set, in case of PCU failure.
o There should be emergency stop switch on the front panel of PCU.
Type of Charger: MPPT.
o Makes Preferred: SMA, Power-one-ups and Equivalent.
– Surge Rating : @ 40 deg C,105 % > 60 sec, 150 % > 30 sec, 200 % > 5 sec.
– Output Voltage : 415V+/- 2% for three phase
– Output Frequency: 50 +/- 0.5%
– THD : <4% +/-1%
– DC Ripple : <3%
– Dielectric strength : 1.1 KV between input/output and ground with EMI protections removed.
– Efficiency : >93% (@ 40 deg C, nominal load).
– No load consumption: <500W
– Operating Ambient Temperature: -10 to 60 deg C.
– Humidity : 95%max. Non-condensing.
– Enclosure : Free standing /Wall mounted, IP 21 , Epoxy powder coated
– Cooling : Temperature