Current Limiting Reactor's Reactance Value Selection Based on Short-Circuit Transient Analysis

Abstract:

Current limiting reactor can increase systems short circuit impedance so as to limit short circuit current. Current limiting reactor is directly involved in whole short circuit process when a short circuit fault occurs in a power system, which makes short-circuit current change more complex. Short circuit current level is affected by current limiting reactors parameters; a current limiting reactor with proper impedance value can maintain short-circuit current at an acceptable range. A short circuit transient process of a distributing network with current limiting reactor was analyzed, and the formula of current changing in short circuit transient process was deduced; according to the current changing formula, an engineering calculation formula of current limiting reactors impedance was derived. The case calculation shows that current limiting reactor meeting the need of the engineering calculation formula can reach the system current limiting requirement.

• Periodical: Advanced Materials Research (Volume 722)
• Pages: 223-227
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.722.223
• Online since: July 2013
• Authors: Tie Ying Zhao, Yan Wen Wang
• Keywords: Current Limiting Reactor, Power System, Short Circuit, Transient Analysis

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