Boost low voltage - 04/09/09 02:27 PM
I have a condition where a second floor panel in a server room, is being fed at a distance of roughly 400'.
This panel is controlling sensitive equipment. 208/120v is the system. Reading phase to phase at the 2nd floor panel, is about 198v and phase to ground is about 107v.
This is obviously a problem. IMO it would be less expensive by far to add some buck boosts instead of increasing wire size. It would be 3x as expensive.
Looking at a chart on a website, I see..
Input V 198
Output V 208
Quantity required 2
KVA 45
Load Amps 125
Fuse Size 175
If I am interpreting this right...I need two buck boosts rated each at 45KVA??
What about one AutoWye connection?
My panel is a 125A rated panel.
This panel is controlling sensitive equipment. 208/120v is the system. Reading phase to phase at the 2nd floor panel, is about 198v and phase to ground is about 107v.
This is obviously a problem. IMO it would be less expensive by far to add some buck boosts instead of increasing wire size. It would be 3x as expensive.
Looking at a chart on a website, I see..
Input V 198
Output V 208
Quantity required 2
KVA 45
Load Amps 125
Fuse Size 175
If I am interpreting this right...I need two buck boosts rated each at 45KVA??
What about one AutoWye connection?
My panel is a 125A rated panel.