公开(公告)号：US20230278944A1

公开(公告)日：2023-09-07

申请号：US18018395

申请日：2021-07-26

申请人： KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY ,  KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

发明人： Sang Goo LEE ,  In Joon PARK ,  Won Wook SO ,  Shin Hong YOOK ,  Hong Suk KANG ,  Eun Ho SOHN ,  Ki Dong SONG ,  Yeon Ho OH ,  Hyun Jae JANG

IPC分类号： C07C43/12

CPC分类号： C07C43/12

摘要： The present invention relates to a method for preparing a perfluorodialkyl ether, comprising the steps of: (A) preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; and (B) isolating the perfluorodialkyl ether, and to an apparatus for preparing perfluorodialkyl ether, comprising: a reactor for preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; a reactant supplier for introducing the compound represented by Formula 1 into the reactor; and a discharge unit for discharging the perfluorodialkyl ether from the upper portion of the reactor.

公开(公告)号：US20240194372A1

公开(公告)日：2024-06-13

申请号：US18250147

申请日：2021-10-25

申请人： KOREA ELECTRO TECHNOLOGY RESEARCH INSTITUTE ,  KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

发明人： Ki Dong SONG ,  Yeon Ho OH ,  Hyun Jae JANG ,  In Joon PARK ,  Won Wook SO ,  Shin Hong YOOK ,  Sang Goo LEE ,  Hong suk KANG ,  Ju Hyeon KIM ,  Ji Hoon BAIK ,  Eun Ho SOHN ,  Myoung Sook LEE ,  Bong Jun CHANG

IPC分类号： H01B3/56 ,  H01H33/56 ,  H02B13/055

CPC分类号： H01B3/56 ,  H01H33/56 ,  H02B13/055 ,  H01H2033/566

摘要： The present invention relates to an insulating gas used for electrical insulation or arc extinguishing of an electrical device, and an electrical device for insulating electricity using the same. The insulating gas of the present invention, which may replace SF6 gas, consists of a mixed gas of trifluoromethyl trifluorovinyl ether (CF3OCFCF2) and a carrier gas. The insulating gas of the present invention has the characteristics of a low boiling point, high dielectric strength, low toxicity, and a low global warming potential (GWP=1 or less), and thus may replace SF6, and the low global warming potential with no loss of high insulating capacity and arc extinguishing capability may reduce greenhouse gases.

公开(公告)号：US20160285250A1

公开(公告)日：2016-09-29

申请号：US15027744

申请日：2014-09-05

申请人： KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

发明人： Woo Young LEE ,  Sang Hun PARK ,  Ki Dong SONG ,  Hyun Jae JANG ,  Jin Kyo CHONG

IPC分类号： H02H3/087

CPC分类号： H02H3/087 ,  H01H9/54 ,  H01H9/542 ,  H01H9/547 ,  H01H33/596 ,  H01H2009/543 ,  H01H2009/544 ,  H01H2009/546

摘要： Provided is a DC current breaker having a high-speed breaking function appropriate to a voltage-type converter and a DC current breaking method. In addition, provided is a DC current breaker and a DC current breaking method capable of reducing cost of the breaker and securing economical competiveness by using a relatively simple configuration. The DC current breaker for breaking a DC current at the time of occurrence of an accident includes: a main conduction unit including three high-speed mechanical switches installed to be connected in series to a main conduction path for conducting a normal-operation-state current; a power semiconductor switch installed to be connected in parallel to one high-speed mechanical switch among the high-speed mechanical switches installed in the main conduction unit for current breaking of the main conduction unit; a capacitor installed on a circuit connected in parallel to the main conduction path; and a surge arrester installed to be connected in parallel to the capacitor connected in parallel to the main conduction path. The DC current breaking method uses the DC current breaker.

摘要翻译： 提供具有适用于电压型转换器的高速断路功能的DC电流断路器和DC电流断路方法。 此外，提供了一种DC电流断路器和DC电流断路方法，其能够通过使用相对简单的配置来降低断路器的成本并确保经济的竞争力。 用于在发生事故时断开直流电流的直流电流断路器包括：主导通单元，其包括三个高速机械开关，其安装成串联连接到用于进行正常工作状态电流的主导通路径 ; 功率半导体开关，其安装成并联连接到安装在主导电单元中的高速机械开关中的一个高速机械开关，用于主导电单元的电流断开; 安装在与主导通路并联连接的电路上的电容器; 以及与并联连接到与主导通路并联连接的电容器的电涌放电器。 直流断路方式使用直流断路器。