ANALISIS KUALITAS ISOLASI PADA TRANSFORMATOR DAYA UAT (Unit Auxiliary Transformer ) 11,5/6,3 KV Unit 1 DENGAN PENGUJIAN TANGEN DELTA DI PT PLN (PERSERO) UPK OMBILIN 2X100 MW
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
FELICIA, ASTI
Hutadjulu, Albert Gifson
Hutadjulu, Albert Gifson
Subject
Teknik Elektro
Datestamp
2022-11-03 03:30:30
Abstract :
A 11.5/6.3 kV UAT (Unit Auxiliary Transformer) power transformer is equipment that functions to transform a higher system voltage to a lower system voltage for the needs of indicator equipment, measuring instruments/meters and relays. UAT (Unit Auxiliary Transformer) power of 11.5/6.3 kV has decreased or malfunctioned. Therefore, it is necessary to conduct a test to determine the condition of the 11.5/6.3 kV UAT (Unit Auxiliary Transformer) power transformer. One of the test methods used on the 11.5/6.3 kV UAT (Unit Auxiliary Transformer) power transformer is the tangent delta test where this test serves to determine the decrease in the insulation ability of an equipment and the value of the capacitance of the equipment, in the delta tangent test at This transformer uses the Omicron CPC 100 test equipment. The factors that affect the value of the tangent delta test results are temperature, dirt, humidity and damage to the transformer mechanism. The delta tangent test carried out refers to the IEEE std C57.152-2013 standard which says if the delta tangent value does not exceed 0.5% then the transformer is in good condition. If the tangent delta value is 0.5%-1% it can still be tolerated. If the tangent delta value is >1% then the insulation quality of the transformer has decreased
A 11.5/6.3 kV UAT (Unit Auxiliary Transformer) power transformer is equipment that functions to transform a higher system voltage to a lower system voltage for the needs of indicator equipment, measuring instruments/meters and relays. UAT (Unit Auxiliary Transformer) power of 11.5/6.3 kV has decreased or malfunctioned. Therefore, it is necessary to conduct a test to determine the condition of the 11.5/6.3 kV UAT (Unit Auxiliary Transformer) power transformer. One of the test methods used on the 11.5/6.3 kV UAT (Unit Auxiliary Transformer) power transformer is the tangent delta test where this test serves to determine the decrease in the insulation ability of an equipment and the value of the capacitance of the equipment, in the delta tangent test at This transformer uses the Omicron CPC 100 test equipment. The factors that affect the value of the tangent delta test results are temperature, dirt, humidity and damage to the transformer mechanism. The delta tangent test carried out refers to the IEEE std C57.152-2013 standard which says if the delta tangent value does not exceed 0.5% then the transformer is in good condition. If the tangent delta value is 0.5%-1% it can still be tolerated. If the tangent delta value is >1% then the insulation quality of the transformer has decreased
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