Open AccessEffect of K-Factor on Capability in Power Transformers
Author(s) -
Muhammad Apryansyah,
MK Iwa Garniwa
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1962/1/012005
Subject(s) - derating , transformer , harmonics , energy efficient transformer , distribution transformer , power factor , electrical engineering , electronic engineering , total harmonic distortion , delta wye transformer , engineering , control theory (sociology) , computer science , voltage , control (management) , artificial intelligence
Harmonic currents generated by nonlinear loads can cause overheating and premature failure of power transformers. According to IEEE Std C57.110TM - 2008, Eddy Current losses are considered proportional to the harmonic current squared multiplied by the harmonic number. This paper will discuss 2 case studies, namely: a transformer without using a harmonic filter and a transformer using a harmonic filter. This research was conducted by measuring the amount of harmonics in arc furnace customers using power quality analysis equipment for 7 days. From the research results obtained indicate that the value of the k-factor is inversely proportional to the maximum transformer capability and is directly proportional to the decrease in transformer capability. So that the transformer that is installed using a harmonic filter has a k-factor value and derating capability is smaller than the transformer without using a harmonic filter, in order not to derating capability of the transformer without using a harmonic filter or a transformer that uses a harmonic filter, it is necessary to use the K-Factor Transformer K-4.