After each power outage, lights come back on dim

[DanITman]

1 hour ago, RAV said:

Can anybody explain why the ideal goal isn't 60.0Hz, or 50.0Hz ?

https://www.djtelectricaltraining.co.uk/downloads/50Hz-Frequency.pdf

[Cyknight]

2 hours ago, South Africa C4 user said:

Ha! This may well (will) work on your side of the pond… but where I live, the generator needs to be set to 49.95Hz or I have issues!

Heh, yeah fair enough

[Cyknight]

2 hours ago, RAV said:

Can anybody explain why the ideal goal isn't 60.0Hz, or 50.0Hz ?

Forced 1% slowdown. There's several explanations/myths around the ORIGIN of it (most commonly the move from black and white to colour TV) as well as what it actually influences (some pretty funny ones out there).

The simple version of the reason is that at a 1/10th percent slowdown you prevent resonating/interfering frequencies.

[eggzlot]

18 hours ago, Cyknight said:

This comes up time and time again. Your generator needs to be tuned to the right frequency.

If you electrician/installer states it is; he's wrong.

Generator at a proper frequency of 59.94 means no issues with the lights.

my electrician said it hovers between 59.7-60.02hz and would look to see if there is a parameter to make it fixed.  he said the frequency naturally dips as it becomes loaded to varying degrees of demand and its always trying to maintain 60hz.  He said if it goes too far under or over it will shut down to prevent damage.

Do you have documentation on how to set a Generac to 59.94?  He is going to ask around but this is the first he is hearing about it...

[Cyknight]

Yes, the target would be set to 59.94 - it can fluctuate, even power from the powergrid will.

I wouldn't have any docs on how/where/if it can be set on that specific brand let alone any specific model, sorry.