THYRISTOR CONTROLLED GROUND FAULT CURRENT LIMITING SYSTEM FOR UNGROUNDED POWER DISTRIBUTION-SYSTEMS

Citation
S. Sugimoto et al., THYRISTOR CONTROLLED GROUND FAULT CURRENT LIMITING SYSTEM FOR UNGROUNDED POWER DISTRIBUTION-SYSTEMS, IEEE transactions on power delivery, 11(2), 1996, pp. 940-945
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Engineering, Eletrical & Electronic
ISSN journal
0885-8977
Volume
11
Issue
2
Year of publication
1996
Pages
940 - 945
Database
ISI
SICI code
0885-8977(1996)11:2<940:TCGFCL>2.0.ZU;2-7
Abstract
A thyristor controlled ground fault current limiting system (TGCL) was proposed to prevent one-line ground fault current rises due to increa sed capacitance to ground, Basic components of the TGCL are a main gro und fault current limiter, which rapidly adjusts a compensating reacto r level for the capacitance to ground, and the TGCL's controller, Cont rol is ensured by an in-phase control method for zero-phase sequence v oltage and current, The method determines the direction of ground faul ts and the compensating reactor level. The fast control which can be r ealized shows the TGCL is a valuable protecting system for high ground fault current distribution systems.