Measured Impedance in Double Circuit Transmission Lines for Faults on Second Circuit

سال انتشار: 1386
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,335

فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

PSC22_021

تاریخ نمایه سازی: 15 اردیبهشت 1386

چکیده مقاله:

The increasing demands for electricity energy and the limits for rights for transmission lines paths, lead to utilization of double circuit lines in power systems. The lines are loaded as high as possible and this leads to decrease in the security margin of the system. Here, accurate protective system is required for satisfactorily operation of the power system. Distance relays are widely used in the protection of transmission systems. Main and backup protection of transmission lines are provided by distance protection, which is based on the measured impedance at the relaying point. For the faults on the first circuit, in the case of zero fault resistance, the measured impedance at the relaying point is independent of the power system conditions. But in the presence of the fault resistance, the measured impedance deviates from its actual value according to the system structural and operational conditions and specially the magnitude of the fault resistance. In the case of second circuit, the measured impedance even deviates from its actual value in the absence of the fault resistance. However, this paper studies the measured impedance for the faults on the second circuit of a double circuit transmission line. The tripping characteristic is presented for the faults on the second circuit. The variation of this tripping characteristic is studied as a function of the changes in the operational and structural conditions of the power system.

نویسندگان

Shateri

Iran University of Science and Technology Tehran

Jamali

Iran University of Science and Technology Tehran

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • Zhang Zhizhe and C. Deshu, "An adaptive approach in digital ...
  • Y. Q. Xia, K. K. Li, and A. K. David, ...
  • S. Jamali, "A fast adaptive digital distance protection", : p.ه. ...
  • Chang-Ho Jung, Dong-Joon Shin, and Jin- O Kim, "Adaptive setting ...
  • Yi Hu, D. Novosel, M. M. Saha, and V. Leitloff, ...
  • Yi Hu, D. Novosel, M. M. Saha, and V. Leitloff, ...
  • A. G. Jongepier and L. van der Sluis, "Adaptive distance ...
  • circuit line", IEEE Trans. Power Delivery, vol. 9, no. 3, ...
  • نمایش کامل مراجع