Sorry for the long post, just want to give all info to help with answers.
Went to a house the other day for a family friend. Lights flickering in barn ( probably 30x40 with apartment above). Old GE 200 Amp panel. The stabs for this 100 Amp breaker were severly burned up. Moved to a different location and moved some small loads around to leave these spots empty .Figured a quick and easy job changing out panel. It is a 400 Amp service (200 Amp + 2-100 Amp panels.)
Problem comes when i open up trough feeding these panels. Old cloth covered wire looks like 500. Figured i should changed this out. So i look for whats feeding this and find a CT Cabinet and transfer switch outside under a built in doghouse. Who ever put in the generator in took the load wires coming from the CT cabinet (which i assume used to feed panels) and took new 250kcm to line side of 200 Amp transfer switch, then 250 kcm back from load of switch and junction on to the old wire(looks like 500).
Transfer switch is huge 3'x3' at least. But is rated at 200 Amps.Fairly new.
My question is:
1.) Can a transfer switch rated at only 200 Amps be Used on a 400 Service if the calculated load is under 200 Amps. I have to figure out calcs. But am having a hard time believing it will come in under 200 Amps.
I asked about possible making one panel a generator panel and not transfer the others. Owner stated it has always worked this way, and i would like to keep it this way.
Will try to get pictures. And more info, I stopped to look at this after work.Want to have some info before i call the inspector with my intentions.
House is around 6000 Sq. Ft. + Barn. This house is all Electric because no gas is available.
6000 Sq. Ft. x 3va 75 Amps
Geo-thermal. 2-Water furaces. Nameplate says 39.2 Amps Each 78.4 Amps
Water Heaters. 2-50 gallon 4500 watt elements. 18.75 Each 37.5 Amps
Well.
Stove.
Clothes dryer. Just with this i come up with 190.9
SO, what are your thoughts. Hope this came out right. Sometimes what's in my head doesn't come right typing. Thanks , Jason
Went to a house the other day for a family friend. Lights flickering in barn ( probably 30x40 with apartment above). Old GE 200 Amp panel. The stabs for this 100 Amp breaker were severly burned up. Moved to a different location and moved some small loads around to leave these spots empty .Figured a quick and easy job changing out panel. It is a 400 Amp service (200 Amp + 2-100 Amp panels.)
Problem comes when i open up trough feeding these panels. Old cloth covered wire looks like 500. Figured i should changed this out. So i look for whats feeding this and find a CT Cabinet and transfer switch outside under a built in doghouse. Who ever put in the generator in took the load wires coming from the CT cabinet (which i assume used to feed panels) and took new 250kcm to line side of 200 Amp transfer switch, then 250 kcm back from load of switch and junction on to the old wire(looks like 500).
Transfer switch is huge 3'x3' at least. But is rated at 200 Amps.Fairly new.
My question is:
1.) Can a transfer switch rated at only 200 Amps be Used on a 400 Service if the calculated load is under 200 Amps. I have to figure out calcs. But am having a hard time believing it will come in under 200 Amps.
I asked about possible making one panel a generator panel and not transfer the others. Owner stated it has always worked this way, and i would like to keep it this way.
Will try to get pictures. And more info, I stopped to look at this after work.Want to have some info before i call the inspector with my intentions.
House is around 6000 Sq. Ft. + Barn. This house is all Electric because no gas is available.
6000 Sq. Ft. x 3va 75 Amps
Geo-thermal. 2-Water furaces. Nameplate says 39.2 Amps Each 78.4 Amps
Water Heaters. 2-50 gallon 4500 watt elements. 18.75 Each 37.5 Amps
Well.
Stove.
Clothes dryer. Just with this i come up with 190.9
SO, what are your thoughts. Hope this came out right. Sometimes what's in my head doesn't come right typing. Thanks , Jason
