bibo:abstract
  • Current transformer(CT) saturation may cause a variety of protective relays to malfunction. The conventional method to deal with the problem is overdimensioning of the core so that CTs can carry up to 20 times the rated current without exceeding 10% ratio correction. However, this not only reduces the sensitivity of relays as some errors may be contained in the secondary current when a severe fault occurs, but also increases the CT core size. This paper presents a technique of estimating the secondary current corresponding to the CT ratio under CT saturation using the magnetization curve. The proposed algorithm can improve the sensitivity of relays to low level internal faults and minimize the instability of relays for external faults. (rdf:langString) (en)
nlon:biographicalNote
  • 강상희, 정회원, 명지대 공대 전기공학과 조교수, 공박 (xsd:string)
  • 강용철, 정회원, 서울대 대학원 전기공학과 박사과정 (xsd:string)
  • 문승일, 정회원, 전북대 공대 전기공학과 전임강사, 공박 (xsd:string)
  • 박종근, 정회원, 서울대 공대 전기공학과 교수, 공박 (xsd:string)
nlon:classificationNumberOfNLK
  • 560.5 (xsd:string)
nlon:containedIn
dc:creator
  • 강상희 (xsd:string)
  • 강용철 (xsd:string)
  • 문승일 (xsd:string)
  • 박종근 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • (A)digital current transforming algorithm using the magnetization curve (xsd:string)
bibframe:extent
  • 30 cm (xsd:string)
  • p. 705-710 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 1995 (xsd:string)
nlon:itemNumberOfNLK
  • 대483ㄱ (xsd:string)
rdfs:label
  • 자화 곡선을 이용한 디지탈 전류 변성 알고리즘 / 姜龍澈, 姜相熙,朴鍾根,文承逸 (xsd:string)
dcterms:language
dc:subject
  • Current transformer (xsd:string)
  • Current transformer saturation (xsd:string)
  • Magnetization curve (xsd:string)
  • 디지탈 전류 변성 알고리즘 (xsd:string)
  • 자화 곡선 (xsd:string)
dcterms:title
  • 자화 곡선을 이용한 디지탈 전류 변성 알고리즘 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 44(4) (xsd:string)