The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Aug. 30, 2004
IN Hyuk Choi, Daejeon, KR;
Dong IL Lee, Daejeon, KR;
Jeong Shik Ahn, Daejeon, KR;
Gil JO Jung, Daejeon, KR;
Jang Hyun Choi, Daejeon, KR;
In Hyuk Choi, Daejeon, KR;
Dong Il Lee, Daejeon, KR;
Jeong Shik Ahn, Daejeon, KR;
Gil Jo Jung, Daejeon, KR;
Jang Hyun Choi, Daejeon, KR;
Abstract
A leakage current measurement apparatus for measuring leakage currents is disclosed. The leakage current measurement apparatus automatically selects one of non-inductive shunt resistors of 10Ω, 100Ω, and 1000Ω and measures leakage currents of an outdoor isolation material for an ultra-high voltage. Additionally, the leakage current measurement apparatus is capable of measuring a relatively wide range of leakage currents with a relatively high precision, even at a remote location, as a measurement range is automatically adjusted within measurement ranges preset by a user when leakage currents of an outdoor isolation material change, and being protected against a surge possibly generated by an ultra-high voltage. Also, it can remotely measure in real-time leakage currents of an outdoor isolation material installed at a remote location over Ethernet.