We are considering installing pfc equipment in our factory.
We are on a 11,000 volt ring main along with 2 other neighbouring companies. (Several years ago our factory was part of a large group occupying this site, our neighbours were once part of this group but have now been sold off). We have our own transformer, LV switches and distribution system. We are billed for our power from a neighbouring company - they read the meter monthly 'downstream' of our transformer and charge us accordingly.
We are advised that if we install pfc we will only see a small proportion of the savings. The capacitors would be installed on the LV side of the power network, but could someone explain why we won't achieve all of the savings?
Thanks in advance!
PFC Installation Savings
Started by
Guest_Anonymous_*
, Dec 07 2005 01:38 PM
1 reply to this topic
#2
marke
-
- Moderator
-
- 2,626 posts
Posting Freak
- Gender:Male
- Location:Christchurch, New Zealand
Posted 07 December 2005 - 05:54 PM
Hi
If you are paying for KW only, you wil get little or no savings.
Power factor correction does not alter the KW drawn by the motor. It will reduce the reactive current drawn from the supply and this will only affect you KWHrs if you have significant line losses between the metering and where the correction is connected. If you are paying a PF penalty, or a KVA demand charge, then you wil achieve a saving, otherwise I would not expect a worthwhile payback.
Best regards,
If you are paying for KW only, you wil get little or no savings.
Power factor correction does not alter the KW drawn by the motor. It will reduce the reactive current drawn from the supply and this will only affect you KWHrs if you have significant line losses between the metering and where the correction is connected. If you are paying a PF penalty, or a KVA demand charge, then you wil achieve a saving, otherwise I would not expect a worthwhile payback.
Best regards,
Mark Empson | administrator
Skype Contact = markempson | phone +64 274 363 067
LMPForum | Power Factor | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | Pressure Transducers | Smart Relay | GSM Control | Mark Empson Website | Soft Starters
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
