The Partial Discharge Characteristics Study of the Insulated Copper Busbar Joint Metal Metal Protrusion Defect

Abstract

Insulated copper busbar is widely used as a new type of electrical equipment in recent years. The joint of the busbar is linked with soft connection copper belt in the field. So, it is very easily lead to the metal protrusion defect at the joint. The metal protrusion detect at joint with entity insulated copper busbar is builded in lab. The partial discharge characteristics of this defect is studied under different applied voltage and the results show that such defect has apparent polarity effect, the discharge always appears in the negative half cycle. The discharge amplitude will not be increased very much with increasing of applied voltage but the discharge frequency will be increased significantly. The results provide the basis of laboratory studies for the field testing of insulated copper busbar.

Improving surface temperature measurement of the power cable and insulated busbar using the heat insulated layer

“…Apart from the power cable, the insulated busbar is another common power transmission line which is similar in structure to the cable Hu et al, 2013;. The main differences between them lie in that the insulated busbar may be installed outdoors and its conductor is a hollow conductor rather than the stranded one.…”