公开(公告)号：EP4071488A1

公开(公告)日：2022-10-12

申请号：EP21167368.6

申请日：2021-04-08

申请人： ABB Schweiz AG

发明人： SEVCIK, Bretislav ,  PODZEMNY, Jaromir ,  SVINDRYCH, Jan

IPC分类号： G01R1/30 ,  G01R19/00 ,  G01R15/00 ,  G01R1/18 ,  G01R15/04 ,  G01R15/18 ,  G01R1/20

摘要： The present invention relates to a low capacity interface (1) for sensor based measurement of current and voltage in high voltage networks or electrical grids, the interface comprising:
- an input stage (3);
- a processor stage; and
- an output stage (6, 8);
wherein the input stage is configured to connect to and receive analogue signals from a sensor (2);
wherein the processor stage comprises a first stage of protection (4), and wherein the first stage of protection comprises guard rings configured to protect against leakage current;
wherein the output stage is configured to connect to a measuring device (5).

公开(公告)号：EP2909641B1

公开(公告)日：2020-06-24

申请号：EP13783839.7

申请日：2013-10-17

申请人： ABB Schweiz AG

发明人： JAVORA, Radek ,  SEVCIK, Bretislav ,  PODZEMNY, Jaromir

IPC分类号： G01R15/14 ,  H01H33/02 ,  G01R15/04 ,  G01R15/18