It is possible that you lost the nuetral to the board.In that case the phases would have run i series through the loads and could have caused the effect you described.
just a thought.
please post any findings.very interested in the cause
Just a thought.The next time one of these breakers do this ,reset it then trip it iether with load and or short.You may find that this is just how that breaker works.I have installed breakers from every manufacturer and sometimes they do trip into the off position.The square d home line breakers...
This is more a question than solution I think. Would it be possible to mount plate type evaporators to the exterior walls of the enclosure, insulate them to improve efficiency and prevent condensation. Use a hi temperature refrigerant like mp39 so as not to bring the interior walls below dew...
HELLO
I AM AN OPERATION ENGINEER IN A HOSPITAL IN BRONX NY.THE HOSPITAL IS ABOUT 40 YEARS OLD AND IT'S PRIMARY SERVICE IS 208V 3PHASE 60hz. IT IS SITUATED IN AN INDUSTRIAL AREA WITH FACTORIES AS WELL AS OTHER MEDICAL FACILITIES.ALL OF WHICH SHARE A COMMON POWER GRID WITH US.
ALL OF MY MOTOR...
