Operating renewable energy plant

The alarms during operation are divided according to the importance of the warning. By importance, each step has a different guaranteed response time to spare for remediation. The main crash alerts include the following but can be changed according to user needs:

a) Level 1 (Critical Fault - highest priority incident)

  • (i) PV system at the plant is fully or partially flooded
  • (ii) Transformer flooding
  • (iii) Completely disconnected from any junction/combiner boxes
  • (iv) Power failure of transformer
  • (v) When any medium voltage protective relay mode is activated
  • (vi) When the plant is disconnected from the regional electricity network
  • (vii) When there is a fire or explosion in the station/factory area
  • (viii) Any incident with the same consequences as mentioned above

b) Level 2 (Fault - priority issue)

  • (i) Loss of power generation capacity of the inverter
  • (ii) Electric meter is faulty
  • (iii) The readings from the meteorological station are inconsistent
  • (iv) Relatively low inverter capacity compared to similar sized inverters

c) Level 3 (Warning - needs attention for trend analysis)

  • (i) Inverter internal temperature seizes up to a warning level
  • (ii) String, Combiner box, Inverter PR levels down to unexpected level
  • (iii) The temperature inside the inverter reaches the warning level
  • (iv) String, Combiner box, Inverter PR have unexpected warnings
  • d) Level 4 (Notice - not considered an incident but rather a notification for trend analysis)
  • (i) ACB reported an error
  • (ii) Inverter error (Run, Stop)

e) Processing time

Level   Division  Type of incident  Processing time  Notification
 Level 1  Critical  x Within 2 hours  Manager
 Level 2   Fault  x  Within 24 hours  Manager
 Level 3  Warning  -  Within 72 hours  Operator
 Level 4  Notice  -  -  Operator

SCB Checking

Cable checking

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