KOORDINASI EFEKTIF JARAK LIGHTNING ARRESTER PADA
GARDU INDUK AREA DURI KOSAMBI
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
Hutagalung, D.Fadel Sion
Pramono, Tri Joko
Pramono, Tri Joko
Subject
Teknik Elektro
Datestamp
2019-12-05 12:51:01
Abstract :
As one of electrical power transmissionsub systems from power plant to consumers , substasion has an important role which is to elevate voltage from power plant and then proceed to drop voltage from transmission line to consumers.Duri Kosambi substation inter-substations within the area has reliability value the must be maintained so that faults likely causing electrical outage on the consumers do not occur.Transformer on a conventional substation is installed on the Switchyard , therefore it is susceptible ti lightning strike.To protect transformer against lightning surge , lightning arrester is used.Installation of lightning arrester on the substation transformer has to regards several matters , among which are BIL (Basic Insulation Level) from transformer and arrester placement distance itself.According to SPLN 7:1978 the maximum distance between lightning arrester and power transformer for arrester with 150kV rated voltage is less than 80m.While according to the calculation and the condition in switchyard , the distance between arrester and transformer are 37,5m and 3,15m.Corresponding with protection standards , so the transformer protection against lightning surge fault is exceptional.
As one of electrical power transmissionsub systems from power plant to consumers , substasion has an important role which is to elevate voltage from power plant and then proceed to drop voltage from transmission line to consumers.Duri Kosambi substation inter-substations within the area has reliability value the must be maintained so that faults likely causing electrical outage on the consumers do not occur.Transformer on a conventional substation is installed on the Switchyard , therefore it is susceptible ti lightning strike.To protect transformer against lightning surge , lightning arrester is used.Installation of lightning arrester on the substation transformer has to regards several matters , among which are BIL (Basic Insulation Level) from transformer and arrester placement distance itself.According to SPLN 7:1978 the maximum distance between lightning arrester and power transformer for arrester with 150kV rated voltage is less than 80m.While according to the calculation and the condition in switchyard , the distance between arrester and transformer are 37,5m and 3,15m.Corresponding with protection standards , so the transformer protection against lightning surge fault is exceptional.
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