Isıl Dayanım Test Raporu İçin Bir Excel Elektronik Tablosunun Kullanımı

Öz

Güç kabloları elektriksel güç sistemlerinin önemli parçalarından birisidir. Kabloyu oluşturan malzemelerin ya da kablonun hangi sıcaklıkta ömrününne olacağının bilinmesi önemlidir. Bundan dolayı kablolarda kullanılan malzemeler için yaşlandırma testleri yapılır. Bu testlerden biri kablonun termal dayanım testidir. Bu test sonucunda elde edilen dataya eğri uydurma işlemi yapılarak kablonun 20000 saatlik ömre karşılık gelen sıcaklık değeri (sıcaklık indeksi) bulunur. Bu eğri uydurma ve sıcaklık indeksini bulma işleminin otomatize edilmesi bu testi yapan firmalar veya araştırma merkezleri için faydalı olacaktır. Matlab veya Mathematica gibi pahalı programlar yerine kullanımı ve erişimi kolay Excel programının bu test sonuçlarını değerlendirmek için kullanımı oldukça ekonomik ve faydalı bir çözümdür. Bu çalışmada termal dayanım testi kısaca anlatılmış ve bu testin sonuçlarını değerlendirmek için Excel’de bir elektronik tablo hazırlanmıştır. EPR malzemesi için yapılan ölçümlerden alınan data kullanılarak programın doğru bir şekilde çalıştığı gösterilmiştir. Böyle bir elektronik tablo kablo fabrikalarında termal dayanım sonuçlarını değerlendirmek için kolaylıkla kullanılabilir.

Anahtar Kelimeler

• Isıl Dayanım Testi
• Kablolar
• Eğri Uydurma
• Excel Elektronik Tablosu

Proje Numarası

UPN-2206

Usage of an Excel Spreadsheet for a Thermal Endurance Test Report

Öz

Power cables are one of the important parts of electrical power systems. It is important to know the materials that make up the cable or what the life of the cable will be at a given temperature. Therefore, aging tests are performed for the materials used in the cables. One of these tests is the thermal endurance test of the cable. The curve fitting process is performed to the data obtained as a result of this test and the temperature value (the temperature index) corresponding to the 20000-hour life of the cable is found. Automating the process of curve-fitting and finding the temperature index will be useful for companies or research centers that perform this test. Instead of expensive programs such as Matlab or Mathematica, the easy-to-use and accessible Excel program is a very economical and useful solution to evaluate these test results. In this study, the thermal endurance test was briefly described and a spreadsheet was prepared in Excel to evaluate the results of this test. Using the data taken from the measurements made for the EPR material, it has been checked that the spreadsheet works correctly. Such a spreadsheet can be easily used in cable factories to evaluate thermal endurance test results.

Anahtar Kelimeler

• Thermal Endurance Test
• Cables
• Curve Fitting
• Excel Spreadsheet

Destekleyen Kurum

Ünika Üniversal Kablo Sanayi ve Tic. A.Ş..

Proje Numarası

UPN-2206

Teşekkür

This study has been supported through the project UPN-2206 funded by the research and development center of Ünika Üniversal Kablo Sanayi ve Tic. A.Ş..The authors are also grateful to Metin Yurtsever and Avşin Öztaş for many useful discussions and their contributions.

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