Fault Current Mitigation using Solid State Fault Current Limiter at Bonite Botlers Ltd

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2018 by IJETT Journal
Volume-65 Number-2
Year of Publication : 2018
Authors : Exaud SaulTweve, Nicholaus George Moyo


MLA Style: Exaud SaulTweve, Nicholaus George Moyo "Fault Current Mitigation using Solid State Fault Current Limiter at Bonite Botlers Ltd" International Journal of Engineering Trends and Technology 65.2 (2018): 61-66.

APA Style:Exaud SaulTweve, Nicholaus George Moyo (2018). Fault Current Mitigation using Solid State Fault Current Limiter at Bonite Botlers Ltd. International Journal of Engineering Trends and Technology, 65(2), 61-66.

Continuous growth of electrical energy demands leads to increase in the fault current level.In some cases fault current levels are exceeding the interrupting capability of the existing transmission and distribution substations circuit breakers. Long term outage leads to increased operational cost to the utility company. Sometimes circuit breakers cannot handle the intensive level of faults current, so they fail to ‘break’ and force a system to collapse. The application of solid state faults current limiter (SSFCL) in power system offers an active way to overpower faults current and result in significant saving in the investment of high capacity circuit breakers. The additional feature of SSFCL is the improvement of power quality by reducing the voltage sag during the fault. Various control strategies have been developed to mitigate voltage sag/swell and unbalance voltage dips. In this paper full outlook of voltage sag, with background theory and guidelines on measurement procedures and problems solving techniques are presented. The capability of SSFCL is demonstrated using MATLAB SIMULINK simulation model. Simulation results show that SSFCL effectively limits the current during fault occurrence and also suppress voltage drop.

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voltage sag, Solid-state fault current limiter, Simulation, power quality