Your Progressive Industries EMS-LCHW 50 not only has surge protection but also under and over voltage protection. The specs call out a low limit of 104 volts it could trip a little higher or lower. Either way when it trips it will recycle back to the initial plug in delay before turning power back on.
The office isn't losing power because they don't have a protection device like you do. Plus unless someone has a meter monitoring the voltage level and constantly watching they are not going to see that anything is wrong.
Your neighbor keeps tripping the breakers because of the low volts. As voltage drops a device, such as your A/C is going to demand more amps to before the same amount of work. If you A/C needs 15 amps when power is 120VAC drop the volts to 100VAC and the amps will climb to 18 amps.
Until either campers start departing and the power demand drops or you move to a different camp site there's nothing you or the camp ground can do short of rewiring power to the row your currently camped on which isn't going to happen in the next day or so.
You can throw caution to the wind and bypass the protective features of the EMS-LCHW 50 but you risk potential damage in particular to the A/C compressor motors. Give Progressive Industries a call if you are willing to take the risk.
