Home aplab model swt 4 lv surge tester
APLAB Model SWT 4 LV Surge TesterSWT 4 is a powerful instrument to pre-locate the fault distance and exactly locate the fault point in a short time. It offers 500J energy on 2 and 4 KV ranges, that allows its use on LT networks effectively. SWT 4 has built-in current coupler that can be used to get the fault distance measurement carried out on a suitable TDR on Impulse Current Mode. It can also be coupled to other instrument compliments such as Arc Reflection Filter to get reliable results of the fault distance.