KAJIAN PENGGANTIAN CURRENT TRANSFORMERS DENGAN ARUS PRIMER MENDEKATI ARUS NOMINAL BEBAN DI PT. PLN (PERSERO) UP3 CIKOKOL
Total View This Week0
Total View This Week0
Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
Alfiyatullailah, Nur
Koerniawan, Tony
Koerniawan, Tony
Subject
Teknik Elektro
Datestamp
2019-12-19 11:54:48
Abstract :
With the growth in the number of potential customers in the Cikokol area, the greater possibility of losses arising from energy measurements on customers. One of the causes of the loss arises because of an error in the current transformer ratio installed in the indirect measurement APP box. One of overcoming the error of the choice of current transformer is to choose the right current transformer. This final project discusses installation error of the current transformer ratio of PT.A. The nominal current at the 105 kVA contract power is 159 A. Therefore, the transformer ratio used is 200/5 A but apparently the installed ratio is not 200/5 A. CT ratio error can cause large errors. When doing an assessment in the field CT error was -60% in phase S. so it is need to replace the current transformersratio.to prove the CT error is outside the class limit, it is necessary to calculate the CT error by Calibrating the accuracy class. CT error obtained from the calibring results at a ratio of 300/5 and 500/5 (before normalization) that is outside the class limit. While CT error at a ratio of 200/5 (after normalization) is still in the class limit.
With the growth in the number of potential customers in the Cikokol area, the greater possibility of losses arising from energy measurements on customers. One of the causes of the loss arises because of an error in the current transformer ratio installed in the indirect measurement APP box. One of overcoming the error of the choice of current transformer is to choose the right current transformer. This final project discusses installation error of the current transformer ratio of PT.A. The nominal current at the 105 kVA contract power is 159 A. Therefore, the transformer ratio used is 200/5 A but apparently the installed ratio is not 200/5 A. CT ratio error can cause large errors. When doing an assessment in the field CT error was -60% in phase S. so it is need to replace the current transformersratio.to prove the CT error is outside the class limit, it is necessary to calculate the CT error by Calibrating the accuracy class. CT error obtained from the calibring results at a ratio of 300/5 and 500/5 (before normalization) that is outside the class limit. While CT error at a ratio of 200/5 (after normalization) is still in the class limit.
Download
book
BibTex
Latex, Jabref
cloud_download
Original Resource
url resource Institution
