bibo:abstract
  • Current transformer(CT) saturation may cause a variety of protective relays to malfunction. The conventional CT is designed that it can carry up to 20 times the rated current without exceeding 10% ratio error. However, the possibility of CT saturation still remains if the fault current contains substantial amounts of ac and/or de components. This paper presents a design method of iron-cored CTs for use with protective relays to prevent CT saturation. The proposed design method determines the core cross section of the CT; it employs the transient dimensioning factor to consider relay's operating time(duty cycle) and dc component as well as ac components contained in the fault current, and symmetrical short-circuit current factor to consider the biggest fault current. The method designs the cross section of CTs in cases of reclosure and no reclosure. (rdf:langString) (en)
nlon:biographicalNote
  • 강상희, 정회원, 명지대 공대 전기공학과 교수 (xsd:string)
  • 강용철, 정회원, 기초전력공학공동연구소 연구원 (xsd:string)
  • 배주천, 정회원, 한국전력공사 부장 (xsd:string)
  • 안준기, 정회원, 한국전력공사 부장 (xsd:string)
  • 이승재, 정회원, 명지대 공대 전기공학과 교수 (xsd:string)
  • 이정택, 정회원, 한국전력공사 부장 (xsd:string)
  • 이주훈, 준회원, 명지대 공대 전기공학과 석사관정 (xsd:string)
  • 이청학, 정회원, 한국전력공사 과장 (xsd:string)
nlon:classificationNumberOfNLK
  • 560.5 (xsd:string)
nlon:containedIn
dc:creator
  • 강상희 (xsd:string)
  • 강용철 (xsd:string)
  • 배주천 (xsd:string)
  • 안준기 (xsd:string)
  • 이승재 (xsd:string)
  • 이정택 (xsd:string)
  • 이주훈 (xsd:string)
  • 이청학 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • (A)design method of iron-cored CTs to prevent saturation (xsd:string)
bibframe:extent
  • 30 cm (xsd:string)
  • p. 119-126 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 1999 (xsd:string)
nlon:itemNumberOfNLK
  • 대483ㄱㄱ (xsd:string)
rdfs:label
  • 포화를 방지하기 위한 보호용 철심 변류기 설계 방법 / 李柱勳, 姜相熙,李承宰,姜龍澈,裵周千,安俊基,李淸學,李晶澤 (xsd:string)
dcterms:language
dc:subject
  • Core cross section (xsd:string)
  • Iron cored CT (xsd:string)
  • Saturation (xsd:string)
  • Symmetrical short-circuit current factor (xsd:string)
  • Transient dimen-sioning factor (xsd:string)
  • 과도 단면적 계수 (xsd:string)
  • 재폐로 (xsd:string)
dcterms:title
  • 포화를 방지하기 위한 보호용 철심 변류기 설계 방법 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 48(1) (xsd:string)