3 weekends in a row, EMS tripped each time
Installed a PI EMS unit (30 amps) in our 2014 TT when we bought it. Last time it tripped was 3 seasons ago. On each of the 3 last weekend outings the EMS has tripped! Twice on open ground and once ...
Forum Discussion
An EMS also monitors the voltage level and will shut off if it either goes too high or too low.
In a packed campground, if everybody's air conditioners are running full blast, it's not unusual to see the voltage drop to below 105 volts. This can damage equipment, as can voltages above 128 volts, which is not high enough for a surge guard to notice and deal with.
High voltages are much rarer than low voltages, but can happen under some circumstances. I once measured 142 volts on an outlet powering some equipment I was trying to troubleshoot on my job, before I retired.
In a packed campground, if everybody's air conditioners are running full blast, it's not unusual to see the voltage drop to below 105 volts. This can damage equipment, as can voltages above 128 volts, which is not high enough for a surge guard to notice and deal with.
High voltages are much rarer than low voltages, but can happen under some circumstances. I once measured 142 volts on an outlet powering some equipment I was trying to troubleshoot on my job, before I retired.
