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Journals / İTÜ Dergisi Seri D: Mühendislik / 2006 / Cilt: 5 - Sayı: 3/1 3/2

100 kV DC high voltage divider having lower than 100 ppm measurement uncertainty

100 ppm' den küçük ölçüm belirsizliğine sahip 100 kV yüksek doğru gerilim bölücüsü

Özcan KALENDERLİ
Ahmet MEREV
Pages
39–50
Publication Date
2022-10-19
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Finally the uncertainty budget of the high voltage divider has been formed and uncertainty of the divider has been obtained to be 66 ppm.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The aim of this paper is to show that the designing and constructing of the direct current (DC) high voltage divider having lower than 100 ppm (part per million) measurement uncertainty (k = 2) for using as a standard divider at 100 kV.
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Key Findings & Data:The ratio of a resistive standard divider used for precisely measuring DC high voltages should have been known accurately and independent of voltage.
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Conclusion & Impact:Finally the uncertainty budget of the high voltage divider has been formed and uncertainty of the divider has been obtained to be 66 ppm.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The aim of this paper is to show that the designing and constructing of the direct current (DC) high voltage divider having lower than 100 ppm (part per million) measurement uncertainty (k = 2) for using as a standard divider at 100 kV. The ratio of a resistive standard divider used for precisely measuring DC high voltages should have been known accurately and independent of voltage. A change in effective resistance of a divider with voltage may be due to combination of three factors. These are heating of entire resistance wire related to temperature coefficient, current leakage which increases with voltages through the insulation material and corona discharges may occur at location of high electrical field along to the entire resistor. The aim of this study is to construct an accurate DC high voltage reference divider considering these factors. This divider is constructed by considering these factors, theoretically. After construction of the divider, performance tests are carried out experimentally. These are stability, linearity, temperature distribution, corona, leakage current, partial discharge and scale factor tests. The results obtainedfrom the tests have been compared with theoretical calculations and it has been shown that the results are compatible. Finally the uncertainty budget of the high voltage divider has been formed and uncertainty of the divider has been obtained to be 66 ppm.

Özet

Bu makalede, 100 ppm ölçüm belirsizliğine sahip, kalibrasyon standardı olarak kullanılmak üzere tasarımı ve yapımı gerçekleştirilen 100 kV’luk bir yüksek doğru gerilim bölücüsüyle ilgili yapılan çalışmalar sunulmuştur. Yüksek doğru gerilimlerin ölçülmesinde yaygın olarak dirençsel gerilim bölücüler kullanılır. Bunların çevirme oranları, kesin olarak bilinmeli ve gerilime bağlı olmamalıdır. Uygulanan gerilimin yüksekliğiyle çevirme oranı, temelde üç faktöre bağlı olarak değişir. Bunlar, dirençlerin ısınmasına bağlı olarak direnç değerlerindeki değişim, kaçak akımlar ve korona boşalmalarıdır. Gerilim bölücünün yapımı, bu faktörler hesaplanarak gerçekleştirilmiştir. Yapım sonrasında performans deneyleri yapılmıştır. Deney sonuçları ile teorik sonuçların uyumlu oldukları görülmüştür. Son olarak gerilim bölücünün belirsizlik bütçesi oluşturulmuştur.

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Cite This Article

KALENDERLİ, Ö., MEREV, A. (2022). 100 kV DC high voltage divider having lower than 100 ppm measurement uncertainty. İTÜ Dergisi Seri D: Mühendislik, Cilt: 5 - Sayı: 3/1 3/2, 39–50. https://ajindex.com/articles/557195

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