KPJ系列卷(juan)(juan)纜(lan)(lan)電(dian)(dian)動(dong)(dong)(dong)平(ping)(ping)車是(shi)一(yi)種在(zai)電(dian)(dian)動(dong)(dong)(dong)平(ping)(ping)車上(shang)設有(you)電(dian)(dian)纜(lan)(lan)卷(juan)(juan)線器(qi),電(dian)(dian)纜(lan)(lan)的一(yi)端在(zai)卷(juan)(juan)線器(qi)上(shang),另一(yi)端在(zai)地面(mian)電(dian)(dian)源上(shang),當平(ping)(ping)車往返運(yun)行時,卷(juan)(juan)線器(qi)自(zi)動(dong)(dong)(dong)將電(dian)(dian)纜(lan)(lan)卷(juan)(juan)起來(lai)和放下,通過卷(juan)(juan)纜(lan)(lan)給電(dian)(dian)機供電(dian)(dian)驅動(dong)(dong)(dong)平(ping)(ping)車行駛。

