Power factor

Engineers, Can anyone please explain what this animal is and if and how it can be brought to zero in KPLC bills.

peasant no system is 100% efficient.
PF is just that, power minus somes ‘losses’ in circuits

can only be reduced but to unity is impossible or not worth it costwise

wamama mmemaliza mucene?Now can someone explain the science.

The only science remaining here is that you should not be allowed to breed you daft imbecile

Power factor is the ratio of real power absorbed by the load to apparent power flowing into the load. Low PF indicates the voltage and current are not in phase. The nature of the loads i.e non linear loads or those that store energy distorts the nature of the wave shape of the current drawn from the source hence apparent power ends up being more than real power.
This basically means your loads draw more power from the source than they actually need causing more current in the power lines which inturn leads to more energy being lost in the distribution system which will require larger wires and other equipment.
Power utilities charge more for those with lower pf.
You can improve your Power factor by adding a passive network of capacitors or inductors. For non linear system, active or passive of correction will be needed to counteract the distortion of current from the source.
Negative power factpr could damage voltage sensitive loads and results when your loads is generating power that flows back to the source and KPLC could charge you an arm and a leg for this.

You cannot achieve Unity PF of 1 but make sure it doesn’t go below 0.8 or your bills will always be higher and if it goes -ve then prepare for the worst.

So get someone to design your a pf correction system consisting of mostly capacitors if you run a lot of induction motors and maybe a changeover if you have a backup generator

It is difficult to achieve an ideal power factor

First of all what machines and equipments are you running

As given in the detailed answer hapo juu fanyiwa an audit to determine your kVars which in most probability you are absorbing (positive kVars) meaning you have serious inductive loads (izi ni vitu ziko na sth like a magnetic coil /inductor in technical terms) kama large motors or machines that use said large motors, so it would in such a case be recommended to you a suitably sized bank of capacitors in parallel to your source to negate that phase distortion. Kampuni mingi kubwa inda have hizo banks of capacitors installed somewhere near their distribution boards

It’s a mid sized manufacturing plant with a 11kva transformer.

Im on my third engineer na hakuna mtu anasaidia can you recommend a professional.

There is a capacitor bank in place.Where can i get someone to do the pf correction system?

Bro mi wacha nisikudanganye eti najua mse akam achome. Best tip I can offer is Google ‘power factor correction kenya’ kuna some links to elec engineering and equipment firms that will come up eg Technolectric. My advice ni uskie tu what they have to say since they are experienced and can give you a quote u compare with other firms (mambo ya bei ata ballpark figure siwes jua so if ur short of cash utajua tu which way to turn) but since you are already being shafted by KPLC hiyo ni pesa you pay anyway better pay upfront because it’s money every month that will be amortised fairly rapidly hence bye bye surcharges. Good luck kasee

I think the main problem could be how they are balanced or maybe they aren’t enough esp if kuna faulty (causes either a short or open circuit) one and you don’t know - of course you’ve to measure capacitance for each to determine the faulty one.

But this are suggestions tu it has to be inspected physically and To be sincere cjui wasee huko kanairo am just a final year apa Egerton Kwa Electrical eng so I can’t recommend someone.
There are softwares to calculate and correct the of but still get someone to inspect the loads and capacitor banks.

Mtu ya taton niaje…

PF corrections is kindergarten stuff,there are controllers meant to handle the tasks, just buy epcos 3phase capacitors and parallel with your load, with a few parameterization you will achieve 0.9. paste your KPLC bill I do it for you. 40% of your total load is sufficient kvars to rectify