Arc Simulation at Shunt-Reactor Switching in H.V. Circuit Breakers
Keywords:arc simulation, circuit breaker, shunt reactor switching
High energy re-ignitions occur in h.v. circuit breakers, when interrupting shunt-reactor currents. The es-calating high frequency over-voltages, which are proportional to the arcing time, are stressful both to the reactor and the circuit breakers. We simulated the electric, thermal and flow field inside the thermal chamber and determined the reduced electric field distribution. Analysing the simulation results the main factors to improve the shunt-reactor breaking capacity are demonstrated.
IEC_62271-110_ed2.0_2009 High-voltage switchgear and controlgear, Part 110: Inductive load switching.
CIGRE Technical Brochure 305: Guide for application of IEC 62271-100 and 62271-1, Part 2 – Making and breaking tests (2006).
Madarász Gy A, Szabó K, Király L, Dielectric Arc Reignition in H.V. Circuit Breakers, In: XXth Symp. on Physics of Switching Arc, (Brno, Czech Republic), September 2–6, 2013.
Copyright (c) 2015 Gy. A. Madarász , K. Szabó, L. Király
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