voltage sag causing diesel Gen to shut down

[kelly242]

Hi, first time here and any help would be great!
Im on a isolated island and have a small grid with a few buildings supplied by solar and 2 dieslen generators. Im having a problem when the Gen is running i get a low voltage sag fault and the Gen turns itself off. I have a suspition the the voltage sag is due to HVAC compressors starting up with high inrush current. i wanted to know if there somthing i can use to stop this low voltage sag getting to the grid. Maybe something i can put on the Hvac load that would tripped if a voltage threshold is crossed?

 

[augie47]

one option:

EasyStart™ 364 Soft Starter

EasyStart™ single phase soft starter lets you start your A/C without buying a second or bigger generator or inverter & run 2 air conditioners on a 30-Amp cord.

www.microair.net

 

[letgomywago]

Maybe load shed also for the hvac so they don't all fire up at once if multiple loads. The

 

[ATSman]

Time to add a 3rd gen.