KOORDINASI PROTEKSI RELAY ARUS LEBIH PADA BUSBAR 20KV DI GARDU INDUK ANGKE 150/20KV
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
Wijaya, Dede
Suwarno, Suwarno
Suwarno, Suwarno
Subject
Teknik Elektro
Datestamp
2019-12-11 04:42:29
Abstract :
In the electric power distribution system there is a transformer that is useful for distributing electricity through channels from the substation to consumers. But not apart from problems, there are still disorders that need to be analyzed, including short circuit interference. To localize the disturbance a protection system is needed that meets the sensitivity, reliability, selectivity and speed requirements. Protection equipment that is often used in distribution systems is over current relay (OCR), which is a relay that functions to give PMT commands to open, so that the disrupted channels are separated from the network. Based on the results of calculations that have been done on the 60 MVA transformer, the three-phase short circuit fault current is 13,659 kA, with an outgoing time multiple second (TMS) value of 0.3 second and an incoming feeder of 0.6 second based on the calculation results. relays installed work according to the delay that has been obtained so, the relay will work in accordance with the area or coverage area, when there is an overcurrent, the relay protects the equipment components so that it does not expand.
In the electric power distribution system there is a transformer that is useful for distributing electricity through channels from the substation to consumers. But not apart from problems, there are still disorders that need to be analyzed, including short circuit interference. To localize the disturbance a protection system is needed that meets the sensitivity, reliability, selectivity and speed requirements. Protection equipment that is often used in distribution systems is over current relay (OCR), which is a relay that functions to give PMT commands to open, so that the disrupted channels are separated from the network. Based on the results of calculations that have been done on the 60 MVA transformer, the three-phase short circuit fault current is 13,659 kA, with an outgoing time multiple second (TMS) value of 0.3 second and an incoming feeder of 0.6 second based on the calculation results. relays installed work according to the delay that has been obtained so, the relay will work in accordance with the area or coverage area, when there is an overcurrent, the relay protects the equipment components so that it does not expand.
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