Low Shore Voltage
Last week we ran into an issue where the campground shore power for our site was only coming in at 104 volts(30 amps). We have a Progressive surge protector and it would not let the power flow. Report...
Forum Discussion
rbpru wrote:
Low voltage to the AC often means higher current which usually is not good. But how much is too low.
Design engineers at TRC have decided that value is 102 vac, those at Progressive have chosen 104 vac as their low voltage trip threshold. Remember, damage doesn't necessarily occur right away but can be cumulative, showing up many months, even years later when suddenly the A/C (or whatever) decides to not work. It's then you know your trailer has been repeatedly exposed to excessively low voltage - using an EMS helps avoid this. And yes, I've BTDT. :(
rbpru wrote:
As mentioned, the rest of the folks at the park went blissfully on their way, never knowing they had a problem.
And are the same folks who often later can't figure out why their A/C, or microwave oven, or converter, or whatever suddenly died. :S
rbpru wrote:
Let's face it, on these hot summer days, with maximum loads on the utility companies, how many of us know or worry about how much the voltage drop is in our own homes.
I do, but here in S Ontario I can honestly say that I've never seen source voltage even under heavy load on a hot summer day drop below 112 vac. That in itself is a bit shocking since normal voltage here tends to hover around 123 vac, nonetheless it's not anywhere near the 104 vac or 102 vac EMS manufacturers have selected as their low voltage threshold.
