syncing two generators
syncing two generators
(OP)
I'm working in Guinea for an NGO troubleshooting a power problem. The office where I'm working has a 3-phase 30kVA SDMO generator. They are overlaoding it (mainly with AC units). RIght now I'm trying to balance the load but its all in an effort to reduce the blinking lights, beeping UPS's, and clicking voltage regulators. I understand that I cannont squeeze the additional 15kW out of the unit to run everything all the time. I've reccomened cuts and replacement of high demand units in favor of lower demand units. And maybe doing away with a/c units in some place all together. But I'm also looking at adding a secondary unit to kick in when the damand is there.
My question is this: How much trouble is it to install a secondary unit, mainly in the syncronization?
We cannot afford a new 50kVA unit, but could possibly afford a 20 kVA unit. But everything I've found online is the exact same unit (output, manufacurer, etc). But thos are also on the manufacturers websites. The unit would pretty much need to be supersafe and fire and forget as the maintenance and troubleshooting abilities here are lacking. I don't want to reccomend the installiation of a unit that the first time the syncing system goes down and the secondary unit is turned on off phase the whole setup meltsdown or explodes or cooks everything turned on or injures or kills the guy turing on the secnodary unit. I've heard stories about stuff coming online off phase then blowing up and injuring the guy at the switch and don't want to be responsable for it happening here.
My question is this: How much trouble is it to install a secondary unit, mainly in the syncronization?
We cannot afford a new 50kVA unit, but could possibly afford a 20 kVA unit. But everything I've found online is the exact same unit (output, manufacurer, etc). But thos are also on the manufacturers websites. The unit would pretty much need to be supersafe and fire and forget as the maintenance and troubleshooting abilities here are lacking. I don't want to reccomend the installiation of a unit that the first time the syncing system goes down and the secondary unit is turned on off phase the whole setup meltsdown or explodes or cooks everything turned on or injures or kills the guy turing on the secnodary unit. I've heard stories about stuff coming online off phase then blowing up and injuring the guy at the switch and don't want to be responsable for it happening here.





RE: syncing two generators
There are few other things to consider about paralleling generators, mainly relating to load sharing and governor dynamics. I don't do much with small diesel sets but waross will no doubt give you chapter & verse on the practicalities & pitfalls of running two diesel sets in parallel when he sees this post.
Over to you Bill!
----------------------------------
If we learn from our mistakes I'm getting a great education!
RE: syncing two generators
RE: syncing two generators
If the synchronization is still required: The bigger generator should be in isochronous operation and the second in droop.
saludos.
a.