Simplified Modeling of Metal Oxide Surge Arresters

Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

CIRED04_002

تاریخ نمایه سازی: 23 تیر 1401

Abstract:

This paper describes simplified modeling of metal axde surge arrester (MOSA) to operate analysis. This model is a new model proposed (P-k Model) to verify the accuracy in arder to compare with IEEE and Pinceti Model. The simulations are performed with Alternative Transients Pragram version of Electromagnetic Transient Pragram (ATP-EMTP). In the present paper, the MOSA models were verified for several medium voltages which consist of ۱۸ kV and ۲۱ kV, which ۱۸ kV arrester was used in ۲۲ kV system of Provincical Electricity Authority (PEA) and ۲۱ kV arrester was used in ۲۴kV system of Metropolian Electricity Authority (MEA) in Thailand.The P-K model was evaluate from different manufacturing, it is based on the General Electric (GE), Siemens and Ohi/o Brass as Well as IEEE and Pinceti Model. The test are performed by applying a fast front current surge with front time of up to μs and the standard impulse current surge (۸/۲۰μs). The results were compared between three models in order to calculate the error operation of the MOSA in the ATP-EMTP Program. The relative error of arrester models show that the P-K model can be used to simulate and calculate in ATP-EMTP program as well as IEEE and Pinceti model. In the case of fast front current surge, the P-K model has a maximum error of ۰.۳۹% (Ohio Brass, ۱۰ kA, ۲۱ kV) and has a minimum error of ۰.۲۴% (GE, ۱۰ KA, ۱۸ kV). Also, the standard impulse current surge, P-K model has a maximum error of ۲% (Ohio Brass, ۱۰ KA, ۱۸ KV) and has a minimum error of ۰.۳۲% (Siemens, ۱۰ KA, ۲۱ KV) in the voltage response.

Keywords:

Metal Oxide Surge Arrester , Frequencyge - Dependent Model , Lightning and Overvoltage