Analysis of Transient Recovery Voltage at the Terminals of Breakers Using Current-Limiting Reactors
- Authors: Brilinskii A.S.1, Evdokunin G.A.2, Trubin D.A.3
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Affiliations:
- JSC “NTTs Edinoi énergeticheskoi sistemy (Scientific and Technical Center of the Unified Power System)”
- Peter the Great St. Petersburg Polytechnical University
- JSC “A1-Énergo”
- Issue: Vol 52, No 4 (2018)
- Pages: 474-484
- Section: Article
- URL: https://journals.rcsi.science/1570-145X/article/view/246266
- DOI: https://doi.org/10.1007/s10749-018-0977-2
- ID: 246266
Cite item
Abstract
Current-limiting reactors (CLR) are known to have a significant effect on transition processes during short circuits (SC) leading to excesses beyond the permissible values of the transient recovery voltage (TRV) at the terminals of breakers for short-circuit currents, which in turn can lead to failure of the breakers. It is shown that the traditional (generally accepted) method for calculating transient recovery voltages based on using a circuit with the reactor replaced by lumped parameters is not suitable for magnetized CLR, and in the case of uncontrolled CLR can yield erroneous results. It is argued that there is a need to account for the distribution of the winding parameters of current-limiting reactors in calculations of the TRV at the contacts of breakers as they interrupt short circuits and relevant analytic expressions are derived.
About the authors
A. S. Brilinskii
JSC “NTTs Edinoi énergeticheskoi sistemy (Scientific and Technical Center of the Unified Power System)”
Author for correspondence.
Email: brilinskiy@ntcees.ru
Russian Federation, St. Petersburg
G. A. Evdokunin
Peter the Great St. Petersburg Polytechnical University
Email: brilinskiy@ntcees.ru
Russian Federation, St. Petersburg
D. A. Trubin
JSC “A1-Énergo”
Email: brilinskiy@ntcees.ru
Russian Federation, St. Petersburg