DLD-220電(dian)力電(dian)纜故障(zhang)(zhang)定(ding)點(dian)儀，采用(yong)“生磁同步發"測(ce)試(shi)原理，適(shi)用(yong)于各種電(dian)壓等級電(dian)力電(dian)纜故障(zhang)(zhang)點(dian)的定(ding)點(dian)。并且(qie)針對(dui)環(huan)境噪聲影響(xiang)大，用(yong)測(ce)聲音(yin)方法對(dui)電(dian)纜故障(zhang)(zhang)定(ding)點(dian)比(bi)較困(kun)難的情(qing)況(kuang)，利用(yong)磁場信號的關系(xi)，屏(ping)蔽了外(wai)界比(bi)較困(kun)難的情(qing)況(kuang)，使(shi)使(shi)用(yong)人員能夠快速有效的判定(ding)故障(zhang)(zhang)位(wei)置，達到(dao)定(ding)點(dian)的目的。