CHEMICAL TAGGING INDICATORS AND METHOD TO LOCATE OVERHEATED SPOTS IN LIQUID-FILLED ELECTRICAL DEVICES
摘要
A method for identifying overheated spots in liquid-filled electrical devices, comprising the steps of: a) determining the locations of potentially overheatable spots in said device and mapping said locations; b) positioning a tag consisting of one or more chemical indicators on potentially overheatable spots in said devices, wherein when said tags are exposed to a given high temperature, they are depolymerized into thermal degradation products which are diffused into the liquid; c) identifying the thermal degradation products by analytical methods; and d) locating the overheated places according to the identified thermal degradation products and the map of locations of said tags; wherein the tags comprise polymers and copolymers, which are substantially absent from the liquid of the device at normal working conditions.
申请公布号
WO2009104172(A2)
申请公布日期
2009.08.27
申请号
WO2008IL00224
申请日期
2008.02.21
申请人
ISRAEL ELECTRIC CORPORATION;POLYMATE LTD.;SHKOLNIK, ANATOLY;SHAPOVALOV, LEONID;FIGOVSKY, OLEG;BIRUKOV, OLGA;TROSSMAN, ALEX
发明人
SHKOLNIK, ANATOLY;SHAPOVALOV, LEONID;FIGOVSKY, OLEG;BIRUKOV, OLGA;TROSSMAN, ALEX