STUDI PENYETELAN RELAI DIFERENSIAL PADA TRANSFORMATOR PT CHEVRON PACIFIC INDONESIA

Abstract: The quality of an electric power system is measured by its continuity of service, good control and  maintenance.  The  good  continuity  of  service  can  be  obtained  if  all  the  components  of power  systems  can  operate  well  in  every  situation  and  condition,  either  in  normal  or  in abnormal  condition.  In abnormal condition, the protection system  has an  important  role in detecting  every  disturbance  and  disconnecting  the  disturbed  parts  from  the  system.  The power  transformer  is  the  main  component  in  a  substation.  The  disturbances  in  the transformer  should  be  isolated  so  as  not  to  disturb  the  system  during  distribution  of  the electric power to other load. The differential relay on the power transformer is a protection relay to detect internal disturbance. This paper discusses the setting and mismatch error of differential  relay  in  substation  of  Central  Duri  at  switchgear  #3  at  PT  Chevron  Pacific Indonesia (PT CPI).  
Keywords: short circuit, differential relay, power transformer
Penulis: Liem Ek Bien & Dita Helna
Kode Jurnal: jptlisetrodd070001

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