Dear All.
Iam having a problem with the meggar test. We have conducted meggar test on the Main DB, SMDB but there is a problem with the SMDB on generator side this is LV installation. The problem is the meggar is showing infinity on to the red, yellow phase with neutral but not with Blue -Neutral we even checked the control wires onto the busbar, we checked the indicator lamps as well but this problem still exist. We tried to remove the fuses on both sides of incomer and outgoing, I need your help to solve this problem thanks in advance.Please provide me a solution.