Can the disc of a 5amp TJM10 relay be used in the same o/c element of a 1amp TJM10 relay? I have a broken puter frame-piece and it involves less work and adjustment to swop the frame with the disc than to dismantle all. I can understand that the current coils will differ, but are the discs the...
Doing a recent installation of a 2,5MVA 6,6kV/525V delta/wye trafo in a sub, the question came up again. Earth is earth, or am I wrong? There is an NER installed on the LV side. Should the earth conductor running with the MV supply cable be connected to the same common-earth bar in the sub as...
1) How do I determine the minimum distance between 2 parallel cable runs of different voltage, eg. 11kV and 380V?
2) How does the one voltage effect the other, and why?
In the designing of an extension to our plant, the issue of operators experiencing electrical shock from operating the push buttons on numerous existing IP65 rated field stop/start stations has raised a few possibly thought provoking questions. The debate is about which control voltage to use...
