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1. WO2020138654 - CURRENT TRANSFORMER OF AIR CIRCUIT BREAKER

Publication Number WO/2020/138654
Publication Date 02.07.2020
International Application No. PCT/KR2019/012042
International Filing Date 18.09.2019
IPC
H01F 27/42 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
42Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors or choke coils
H01F 38/30 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38Adaptations of transformers or inductances for specific applications or functions
20Instrument transformers
22for single phase ac
28Current transformers
30Constructions
H01F 27/24 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
24Magnetic cores
CPC
H01F 27/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
24Magnetic cores
H01F 27/42
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
42Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
H01F 27/427
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
42Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
422for instrument transformers
427for current transformers
H01F 38/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38Adaptations of transformers or inductances for specific applications or functions
20Instruments transformers
22for single phase ac
28Current transformers
30Constructions
Applicants
  • 엘에스일렉트릭(주) LS ELECTRIC CO., LTD. [KR]/[KR]
Inventors
  • 정한백 CHUNG, Han-Baek
Agents
  • 특허법인(유한) 대아 DAE-A INTELLECTUAL PROPERTY CONSULTING
Priority Data
10-2018-016980326.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) CURRENT TRANSFORMER OF AIR CIRCUIT BREAKER
(FR) TRANSFORMATEUR DE COURANT DE DISJONCTEUR À AIR
(KO) 기중회로차단기의 변류기
Abstract
(EN)
A current transformer according to the present invention can comprise a magnetic core, a secondary coil, and a magnetic flux compensation member. A main circuit of an air circuit breaker penetrates the magnetic core. In addition, the secondary coil is arranged to be adjacent to the magnetic core, and a secondary current is induced through a current flowing in the main circuit. In addition, the secondary coil supplies the induced secondary current to a relay. The magnetic flux compensation member can be coupled to the magnetic core so as to correct magnetic flux of the secondary coil.
(FR)
La présente invention concerne un transformateur de courant qui peut comprendre un noyau magnétique, une bobine secondaire et un élément de compensation de flux magnétique. Un circuit principal d'un disjoncteur à air pénètre dans le noyau magnétique. De plus, la bobine secondaire est agencée de façon à être adjacente au noyau magnétique, et un courant secondaire est induit par un courant circulant dans le circuit principal. De plus, la bobine secondaire fournit le courant secondaire induit à un relais. L'élément de compensation de flux magnétique peut être couplé au noyau magnétique de façon à corriger le flux magnétique de la bobine secondaire.
(KO)
본 발명의 변류기는 자성코어, 2차코일 및 자속보상부재를 포함할 수 있다. 자성코어는 기중회로차단기의 주회로가 관통한다. 그리고, 2차코일은 자성코어와 인접하게 배치되고 주회로를 흐르는 전류를 통해 2차전류가 유도된다. 그리고 2차코일은 계전기로 유도된 2차전류를 공급한다. 자속보상부재는 자성코어에 결합되어 2차코일의 자속을 보정할 수 있다.
Also published as
Latest bibliographic data on file with the International Bureau