175 kva generator

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According to the verbiage I do not know why shunt trip breaker(s) could not be employed as the "system".

Pete
 
I have noticed Target doing this on their old stores, they use a relatively small generator, I do not know if they do it on the new stores, strange but effective way of reducing load............
 
hillbilly1 said:
I have noticed Target doing this on their old stores, they use a relatively small generator, I do not know if they do it on the new stores, strange but effective way of reducing load............
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It's an existing building that has a load of 30a more than what the fla of the generator is after the 125% multiplier. So, they are simply replacing a couple of the A/C breakers with shunt trip ones. Seems like a satisfactory soultion.
 
Hendrix said:
It's an existing building that has a load of 30a more than what the fla of the generator is after the 125% multiplier. So, they are simply replacing a couple of the A/C breakers with shunt trip ones. Seems like a satisfactory soultion.
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Why not just interlock the A/C control voltage with relays? Much cheaper and does not have to be reset after a power outage.
 
hillbilly1 said:
Why not just interlock the A/C control voltage with relays? Much cheaper and does not have to be reset after a power outage.
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I agree.
With the shunt trip breaker, resetting would be necessary once regular power was restore. Somewhat defeats the purpose of an ATS.
If relays are not practical, a motor operated breaker might be an option.
 
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