대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 하계학술대회 논문집 A
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- Pages.159-162
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- 2002
고장계산 및 보호협조 판정 소프트웨어 개발
A Development of Software about Short-circuit Calculation and Protective-coordination
- Park, S.C. (Electro Technology R&D Center, LG Industrial systems) ;
- Choe, J.H. (Electrical Engineering Depart, Chungnam Nat' Univ.) ;
- Seo, J.M. (Electro Technology R&D Center, LG Industrial systems)
- 발행 : 2002.07.10
초록
A software, called touch-one, is developed about the determination of short-circuit values and protective co-ordination in power system. The used solution algorithm reviewed intensively, and the protective co-ordination determination technique presented by using the circuit-breaker's current-limitation characteristic. The protective coordination concerns the behaviour of two devices placed in series in an electrical network, with a short-circuit downstream circuit-breaker. It has two basic principles: First, discrimination which is an increasing requirement of low voltage electrical distribution systems. Second, which is less well known: cascading, which consists of installing a device, whose breaking capacity is less than the three-phase short-circuit current at its terminals and helped by main circuit-breaker. With this software, we can construct a electric-power system which is reliable and economic according to user's purpose.
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