公开(公告)号：DE19542162C2

公开(公告)日：2000-11-23

申请号：DE19542162

申请日：1995-11-11

Applicant: ABB RESEARCH LTD

Inventor： BAIATU TUDOR ,  ETTER PETER ,  FRIED REINHARD ,  WIESMANN HANS JUERG

IPC: H01C13/02 ,  H01C1/08 ,  H01C7/02 ,  H01C7/12 ,  H02H9/02 ,  H02M9/02 ,  H01C3/02 ,  H01C1/16

Abstract: The current limiting device is formed by a pair of zig zag shaped PTC resistors (1,2) that are placed in parallel and are separated by an insulating layer. Electrical connection points (A,B) are formed at each end. The reactive layers can be formed in a foil using a chemical or electro-chemical process. The layers may be located in grooves formed in a thermally cooling material that has flow channels through which a cooling fluid flows.