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나승성(Seung-Sung Na) 한국기업법학회 2011 企業法硏究 Vol.25 No.3
Non-par value stock is a stock on which only quantity of the stock is stated without a specified value on stock certificate and articles of incorporation. The system of the non-par value stock was first devised and legislated in U.S.A. Later, non-par value stock was introduced and was institutionalized in Japan, Germany and other countries. In Korea, Revised Commercial Law Act of 2011 has accepted the non-par value stock system. Before that, there have been divided opinions about introduction to Commercial Law Act. In terms of institutionalization, IMF crisis has caused the amendment of Commercial Law Act to lower the face value from 5,000 won to 100 won. This change, however, can"t help companies collecting the funds with ease. According to Revised Commercial Law Act of 2011, as the non-par value stock does not have the legal limitation about issue price of the stock, companies can set the issue price at discretion under a limited restriction. In addition, companies can deposite a portion of the issue price as a capital reserve and decide the percentage of capital relatively freely. Revised Commercial Law Act of 2011 authorizes th board of directors to convert a portion of issue price for stocks into capital reserve on the condition of up to half of issue price. It is reasonable that board of directors have authority to decide the ratio of capital to capital reserve from the corporation management"s point of view. This ratio, however, has to be supervised by shareholders, auditor or audit committee.
두번의 퀜치를 갖는 초전도한류기의 동작특성 및 전력부담 분석
임승택(Seung-Taek Lim),고주찬(Ju-Chan Go),나승성(Seung-Sung Na),임성훈(Sung-Hun Lim) 한국조명·전기설비학회 2016 조명·전기설비학회논문지 Vol.30 No.7
SFCL(superconducting Fault Current Limiter) which had zero impedance characteristic does not have power loss and limits quickly fault current. So it plays a rule as a protective equipment. And there are many type of SFCL. In this paper, we analyzed a SFCL with twice Quench so as to improve existing SFCL that operates regardless of scale of fault current. This SFCL with twice quench composed of extra series resistance(RS) and could limit once or twice dependent on scale of fault current. We analyzed operating characteristics and power burden of SFCL and its components according to fault position and series resistance(RS). Through the analysis, we could confirm that SFCL with RS operated at lower current, limited the fault current faster. And components’s power burden could be analyzed.
고주찬(Ju-chan Go),나승성(Seung-seong Na),임승택(Seung-taek Lim),임성훈(Sung-hun Lim),고석철(Seok-Cheol Ko) 한국조명·전기설비학회 2016 조명·전기설비학회논문지 Vol.30 No.7
An SFCL(Superconducting Fault Current Limiter), which has zero impedance characteristic, doesnt have power loss and limits fault current quickly, therefore it plays a rule as a protective equipment. And there are many types of SFCLs. In this paper, we analyzed operating characteristics of a double quench SFCL with a transformer. When a fault current flows on this SFCL, a HTSC(High Temperature Superconducting) element on primary of the transformer is operated and then a HTSC element on secondary of the transformer is operated. We tested this SFCL according to turn ratio and compared a double quench SFCL with series resistance for the SFCL with a transformer. After experiments, we could confirm fault current limiting characteristics of the SFCL with a transformer according to turn ratio. Also operating characteristics and power burden of HTSC element according to application for series resistance and for transformer were verified.