公开(公告)号：EP2700136A1

公开(公告)日：2014-02-26

申请号：EP12774113.0

申请日：2012-04-23

申请人： ABB Oy

发明人： TAKALA, Marko ,  RAJALA, Matti ,  PYLKÄS, Marko

IPC分类号： H02H3/04 ,  H01H85/32

CPC分类号： G01R31/07 ,  H01H2085/0266 ,  H02H3/046

摘要： An arrangement for monitoring condition of a direct current voltage circuit, an arrangement comprising a first and a second supply pole for forming an operating voltage of the direct current circuit, a first fuse (7a) connected to the first supply pole,, which first fuse has a supply pole (7a1 ) and an output pole (7a2). A second fuse (7b) connected to the second supply pole, which second fuse has an input pole (7b1) and an output pole (7b2), means for forming one or several reference voltages (U
REF a, U
REF b, U
REF c) means (3a,...,3h, 3m,...,3t) for forming a first measurement voltage (U
1a ,U
1b ,U
1c , U
1d ) between the output pole (7a2) of the first fuse and the supply pole (7b1) of the second fuse, means for forming a second measurement voltage (U
1a ,U
1b ,U
1c ,U
1d ) between the output pole of the second fuse and the supply pole of the first or the second fuse, means (4a, 4b, 4c) for comparing one or several reference voltages and measurement voltages to estimate the condition of the first and the second fuse, and means (6) for indicating the comparison result.

公开(公告)号：EP2700136B1

公开(公告)日：2016-12-21

申请号：EP12774113.0

申请日：2012-04-23

申请人： ABB Oy

发明人： TAKALA, Marko ,  RAJALA, Matti ,  PYLKÄS, Marko

IPC分类号： H02H3/04 ,  H01H85/32 ,  H01H85/02

CPC分类号： G01R31/07 ,  H01H2085/0266 ,  H02H3/046

公开(公告)号：EP2939252A1

公开(公告)日：2015-11-04

申请号：EP12891014.8

申请日：2012-12-28

申请人： ABB Oy

发明人： TAKALA, Marko ,  ELOMAA, Jari ,  KÄHKIPURO, Matti ,  PUUMALA, Veikko ,  KETTUNEN, Lauri ,  FORSBERG, Tommi ,  ARJANNE, Pertti ,  HELMINEN, Mikko ,  VEHKAPERÄ, Mikko

IPC分类号： H01H33/60

CPC分类号： H01H50/645 ,  H01H1/50 ,  H01H3/222 ,  H01H9/38 ,  H01H50/163 ,  H01H50/443 ,  H01H50/54 ,  H01H51/2209 ,  H01H2201/008

摘要： A switch assembly (1) for switching electric circuits comprises a contributory switch (3), a main switch (2), and a flexible element (4). The contributory switch (3) and the main switch (2) are connected electrically in series, the contributory switch (3) and the main switch (4) each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact (5a), and one movable contact of the main switch, a second contact (6a).

公开(公告)号：EP2939343A1

公开(公告)日：2015-11-04

申请号：EP12891068.4

申请日：2012-12-28

申请人： ABB Oy

发明人： TAKALA, Marko ,  KÄHKIPURO, Matti ,  RANTANEN, Tommi

IPC分类号： H03K17/00

CPC分类号： H03K17/082 ,  H02H3/025 ,  H02H3/08

摘要： An electric switch arrangement(4)and a method for coupling of an electric power source (2) with a load (3). The electric switch arrangement comprises at least one electric switch unit (5) to be coupled between the electric power source and the load,at least one crowbar circuit (6) to be coupled to an output of the electric switch unit in parallel with the load, and at least one control unit (7) configured to control the operation of the electric switch unit and the crowbar circuit. The control unit is configured to control the electric switch unit to a closed state to allow a current flow through the electric switch unit and to an open state to prevent a current flow through the electric switch unit. The control unit is configured to control the crowbar circuit to a closed state to allowa current flow through the crowbar circuit and to an open state to prevent a current flow through the crowbar circuit.