T
The Ghost
I have alluded to this in previous threads. The commercial site I work on has asked me what I think the total KVA for the site is. Having looked at various ways of viewing this I am getting lost with it. So if I just say
kVA = ( V*A*1.73)/1000 and assume supply is 400V and take the main incomer fuse at 200a I come up with 138 kVA. Now I know for a fact that figure will never be drawn at the site.
However the energy provider suggests 80 kVA. The DNO has suggested an average of 60 kVA per month. So I am stuck between these figures, looking for a sensible way forward. It is important to get this right as if you order in excess of what you use you pay a significantly higher tariff whereas you pay a significantly higher tariff if you underestimate kVA and exceed the deman required. I have read more than enough around this but there is no simple answer it appears. I do think the DNO/energy supplier is expecting a lot from the end user in having to deal with this. Anybody have any constructive ideas?
kVA = ( V*A*1.73)/1000 and assume supply is 400V and take the main incomer fuse at 200a I come up with 138 kVA. Now I know for a fact that figure will never be drawn at the site.
However the energy provider suggests 80 kVA. The DNO has suggested an average of 60 kVA per month. So I am stuck between these figures, looking for a sensible way forward. It is important to get this right as if you order in excess of what you use you pay a significantly higher tariff whereas you pay a significantly higher tariff if you underestimate kVA and exceed the deman required. I have read more than enough around this but there is no simple answer it appears. I do think the DNO/energy supplier is expecting a lot from the end user in having to deal with this. Anybody have any constructive ideas?