Power Factor Correction For Three Phase Primary Input
Posted 20 December 2007 - 08:21 AM
Someone told me the other day that Power Factor Correction is only used for single phase power sources like welding power sources. Is this a fact?
Posted 20 December 2007 - 10:33 AM
"Don't assume any thing, always check/ask and clear yourself".
Posted 22 December 2007 - 09:04 PM
Welcome to the forum.
Power factor correction can be applied to any inductive load connected to the AC supply, however power factor correction is typically only applied to installations where there is a power factor penalty or KVA maximum demand tariff as there is little or no advantage to the end user unless they have their own source of supply.
Power factor penalties and KVA maximum demand charges are typically only applied to larger industrial installations. I have never come across them being applied to domestic or small industrial installations, so the major usage is on three phase,not single phase applications.
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Posted 23 December 2007 - 04:59 PM
some high-power fast PFC are able to compensate single-phase loads, for example arc welders, also for power of megawatts.
Not all 3-phase compensators are in position to compensate single-phase loads.
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