Yeni Üretilen XLPE İzolasyonlu Tek Damarlı Bir Güç Kablosunun Kaçak Empedansının Hesabı

Öz

Tek damarlı kablolar elektrik sistemlerinde yaygın olarak kullanılmaktadır. Kaçak empedans bu kabloların önemli bir parametresidir. XLPE güç kablolarında yalıtkan olarak kullanılan en yaygın malzemedir. Kablonun XLPE ve Bakır Polyester band katmanlarının kompleks elektriksel geçirgenliği kablonun kaçak akımını belirler. XLPE'nin ve Bakır Polyester bandın (Mylar) kompleks elektriksel geçirgenliği, hem çalışma frekansının hem de sıcaklığın bir fonksiyonudur. Bir güç kablosunda sıcaklık, yarıçapın bir fonksiyonu olarak değişir ve bu da kablo kaçak empedansının hesaplanmasını zorlaştırır. Bu çalışmada literatürden alınan veriler ve sayısal entegrasyon kullanılarak kablonun kaçak empedansının nasıl hesaplanacağı gösterilmiştir.

Anahtar Kelimeler

• Kablo modelleme
• tek damarlı güç Kablosu
• kablo kaçak empedansı
• XLPE malzemesi.

Yeni Üretilen XLPE İzolasyonlu Tek Damarlı Bir Güç Kablosunun Kaçak Empedansının Hesabı

Öz

Single-core cables are widely used in electric power systems. Their leakage impedance is an important parameter. XLPE is the most common material used as an insulator in power cables. The complex permittivities of XLPE and Copper Polyester tape layers (Mylar) of the cable determine its leakage current. The complex permittivity of XLPE and Copper Polyester tape are functions of both operation frequency and temperature. In a power cable, the temperature varies as a function of radius, which makes the calculation of the leakage impedance difficult. In this study, it is shown how to calculate the leakage impedance of the cable using the data taken from the literature and numerical integration.

Anahtar Kelimeler

• Cable modeling
• single-core power cable
• cable leakage impedance
• XLPE material.

Kaynakça

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