Diagnosis Method of Overhead Contact Line by Pantograph for Current Collection
Hiromichi NAKANISHI, Tetsurou TAKAHASHI, Hiroki NAGASAWA
Hard spots of overhead contact line are diagnosed by electric inspection cars
on the narrow gage line in JR Group. But frequence of diagnosis is only 2 or 3
times per year. A more frequent diagnosis of contact line such as done by pantograph
for current collection on a commercial car is desirable. So a field test was carried
out using a pnatograph equipped with sensors for current collection on electric
inspection cars. Thus it becomes possible to find out trouble in almost part of
contact line in terms of a vertical displacement and acceleration of pantograph shoe.