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Fault - 4 - CB10 (PV CB) Trip

CB10 (PV CB) Trip - 4 - PV side circuit breaker (DS10) tripped

Possible problem : 

  • DS10 disconnect switch is open
  • Auxiliary switch is inoperable, DS10 contactor failed closed

Solution(s) : 

  • Check the wiring connection 
  • Change the DS10, replace DS10 contactor

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