STUDI SUSUT UMUR TRANSFORMATOR DISTRIBUSI 20 kV AKIBAT PEMBEBANAN LEBIH DI PT.PLN (PERSERO) KOTA PONTIANAK

Authors

  • Parlindungan Gultom .

DOI:

https://doi.org/10.26418/j3eit.v5i3.21155

Abstract

Abstract

Distribution transformer has a very crucial role on electrical power supply distribution system. In 1972, International Electrotechnical Commission (IEC) 354 claim if a transformer get a stable load on it"™s identification power with ambient temperature 200C, transformer hot spot temperature will reach 980C and it"™s lifetime became 20 years or 7300 days with

normal loss of life 0,0137% each day.

Daily average ambient temperature in Pontianak is 300C, causing transformer"™s load has to be adjust to avoid high

loss of life.  Distribution transformer which installed on feeder Raya 10 has 11 units operating with daily load 80% - 100%

of identification power and 8 units with over 100% daily load of identification power. Base on research that has been done we"™ve come to conclusion that transformer which operating in Pontianak should not gain 91% load of identification power cause will decreasing the transformer lifetime drasticly.

 

Keywords: distribution transformer, loss of life, ambient temperature, load.

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Published

2017-08-10

Issue

Vol. 5 No. 3: Juli 2017

Section

Articles

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