Hybrid type current measuring device

The present invention relates to a sensor which is installed so that the outer surface of a ground connection line extended from an insulated cylinder auxiliary device is wrapped, and which is capable of collectively measuring complex current including partial discharge and leakage current generated...

Full description

Saved in:
Bibliographic Details
Main Authors KIM CHOONG SIK, LEE JEON SEON, KIM JIN GI
Format Patent
LanguageEnglish
Korean
Published 03.11.2022
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
Online AccessGet full text

Cover

More Information
Summary:The present invention relates to a sensor which is installed so that the outer surface of a ground connection line extended from an insulated cylinder auxiliary device is wrapped, and which is capable of collectively measuring complex current including partial discharge and leakage current generated from the ground connection line. More specifically, the sensor comprises: a housing which is made of two divided bodies which can be separated and coupled to each other by a binding means provided on the outer surface, and into which the ground connection line of the insulation box protection device penetrates to be inserted; a high-frequency current sensor unit inserted and installed to face each other inside the housing and detecting an electrical signal of a high-frequency current generated by partial discharge in a ground connection line; and a leakage current measuring unit inserted into the housing to face each other, detecting leakage current generated in a ground connection line, and forming at least one shielding layer together with the housing. The housing has a through hole passing through the high frequency current sensor unit and the leakage current measuring unit to be extended from the upper surface to the lower surface. 본 발명은 절연통 보조장치에서 연장된 접지연결선 외면이 감싸지도록 설치되어 해당 접지연결선에서 발생하는 부분방전 및 누설전류를 포함하는 복합전류를 일괄 측정할 수 있는 센서장치에 관한 것으로, 더욱 상세하게는 외면에 구비된 결속수단에 의해 서로 분리 결합이 가능한 두 분체로 이루어지되 절연통 보호장치의 접지연결선이 관통 삽입되는 하우징과, 상기 하우징 내부에 서로 마주보게 삽입 설치되되 접지연결선에 부분방전으로 생성되는 고주파 전류의 전기적인 신호를 검출하는 고주파 전류센서부 및 상기 하우징 내부에 서로 마주보게 삽입 설치되되 접지연결선에 생성되는 누설전류를 감지하며, 상기 하우징과 함께 적어도 하나 이상의 차폐층을 형성하는 누설전류 측정부를 포함하되, 상기 하우징은 상면에서 하면까지 이어지게 상기 고주파 전류센서부 및 상기 누설전류 측정부를 관통하는 관통공이 형성된 것을 특징으로 한다.
Bibliography:Application Number: KR20210054625