Power Factor Explained - The basics what is power factor pf

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Күн бұрын

What is power factor? In this video we learn all about power factor starting at the basics. We cover, what is power factor, what is good and bad power factor, how to fix bad power factor, what is leading power factor, what is lagging power factor, how capacitors, inductors and resistors affect circuits as well as how to calculate the power factor correction.
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Пікірлер: 788

@EngineeringMindset 5 жыл бұрын

⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset

@MrAbdalla915 5 жыл бұрын

Please keep on ...your channel one of best I watch on KZfaq

@sydneyhunt6681 5 жыл бұрын

Know what Ether is buddy all the best

@radhakrishna1008 5 жыл бұрын

@@MrAbdalla915 can u suggest any KZfaq channel like this one which i can subscribe for Electrical Engineering???

@bonfaceoricho2498 4 жыл бұрын

Awesome

@lukmly013 4 жыл бұрын

I just lost here

@dangermace11 3 жыл бұрын

I'm an electrical engineer of 30 years and I'm telling you now I couldn't think of a better source of engineering information than this channel. Its so well put together and explanations are (99.9%) of the time spot on. Paul, I've said it before I wish you were my college lecturer many moons ago! Keep up the good work

@borysnijinski331 2 жыл бұрын

How can you be an electrical engineer for 30 yrs and not know these fundamental electricity concepts?

@dangermace11 2 жыл бұрын

@@borysnijinski331 I didn't say I didn't know them

@calyodelphi124 2 жыл бұрын

QQ: This video stops at the calculation of the leading-factor apparent power that has to be introduced by capacitive loads. How would one go from this stopping point to figuring the amount of capacitance one must introduce into the system in order to introduce the correct amount of power factor correction into the system?

@gabe8515 2 жыл бұрын

I don't even bother watching my lectures anymore, i just lookup the topic and find someone that can explain it 50x better!

@yasseer6463 2 жыл бұрын

@@borysnijinski331 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

@RajanSamuel555 Жыл бұрын

Hello Paul, I spent 8 hours today trying to learn Power Factor from my course notes and text book. Became really highly frustrated because nothing made any sense. Then I watched and studied your videos. I first went through Resistance, Capacitors, Inductors and Induction Motors and then I did your entire Power Factor Video including all calcs. I starting with your videos at 22.00 on Monday night. Its now 03.34 on Tuesday morning and I can now say that I have mastered Power Factor. WITH ALL MY HEART, THANK YOU PAUL. YOU ARE MY SUPER-HERO. Your Videos are super fantastic. Please keep up the Excellent work! Regards, Rajan. South Africa

@raidoung4100 5 ай бұрын

buy him a coffee some day ! Cheers !

@emptech 3 жыл бұрын

That was probably the best layperson's explanation of power factor, kvars, etc. Many years ago I was brought in to work on an inductive furnace, used to melt aluminum. The system was driven by a motor-generator. On the control panel was a meter labeled KVARS, part of the scale was in RED. We were getting readings in the red, I didn't understand why. We also had a bank of capacitors that could be switched in and out. I spoke with one of our proffesors and he gave me a very good explanation. What we found is that some of the switch contacts on the capacitor bank were worn out and we were unable to change the PF. The switch said we were adding capacitors but in reality, we were not. Having taking power quality classes since, what has changed in a building is the type of load. Much of it today is from switching power supplies in computer equipment, also many of the motors used in HVAC are soft start and variable frequency. One obvious clue is to feel the temperature of the power panel, as the PF drops, the panel gets warmer, from the losses, and we pay for it. I wish I saw this video 30 years ago, very good. Jim

@privacyvalued4134 Жыл бұрын

30 years ago? KZfaq started in 2005 and therefore didn't exist in 1991. Neither did the Internet. Well the Internet did exist in 1991 but was only seen in educational environments for a bit before it started taking off significantly in the public space in 1993/1994. In those early days, downloading a video the size seen on KZfaq today would have been unfathomable on dialup where it took about 10 minutes to download 1MB.

@dantekester4644 Ай бұрын

@@privacyvalued4134I think you may have misread his comment. He wrote “I WISH I saw this video 30 years ago…”

@aaronramsden1657 3 жыл бұрын

Ok, so after reading dozens of text books I've come to the conclusion this is the best channel for me to watch and actually understand concepts.

@blaketimmons6580 4 жыл бұрын

I'm an Electrical Engineer, and I explained this concept many times. I find this is one of the best descriptions.

@Tenshiwa 3 ай бұрын

This 10 minute video, explained it better than my 2 hour lecture did.

@colinhunt1095 2 жыл бұрын

I used to work in PFC, and this way of explaining the problem, and solutions is first class. It is hard for a non electrical engineer to understand the concept, but most people could get some understanding from this video. Regards.

@sergiosaenz859 9 ай бұрын

It is the first time someone makes electricity easy to understand for me. Thank you!

@moistmike4150 2 жыл бұрын

I WISH I'd have had vids like this back when I was a kid trying to internalize information from various text books on these subjects. MUCH more intuitive than the abstract stuff you get from ink-and-paper. God bless you!!!

@byronjones3579 5 жыл бұрын

Mate such a legend. Your lessons are amazing. Such a good teacher as well. Keep them videos coming please.

@matheoscolettowermuth3887 2 жыл бұрын

I am a newly graduated Electrical Engineer and this videos are amazing, simple yet very pertinent information and explanations, keep up the good work!

@kimvibk9242 5 жыл бұрын

I'm a simple man...I see a glass of beer in the thumbnail and I click it.

@jkj1459 4 жыл бұрын

WOW WHAT A TRUTH TELLER ......SO YOU MAY DOUBLE CLICK IN CASE OF BLUE LABEL WHISKY

@JustSnapper 3 жыл бұрын

Same

@RayhanulSumon 3 жыл бұрын

Same

@truefaceofmo8307 3 жыл бұрын

Simply good power factor 🍺 beer..

@kieranfester3296 2 жыл бұрын

Indeed sir, indeed.

@aaronramsden1657 2 жыл бұрын

Thank you so much Paul for these amazing explanations! Most text books are super confusing but you've managed to find a way to make these easy to learn!

@gordsteindel5061 3 жыл бұрын

Possible correction and suggestion ...at about 2:37 In the True Power formula, I think the label for the first term was intended to be "Apparent Power" (kVA) in yellow or orange, as opposed to "Reactive Power" (kVA) in green. Also in the final Power Factor formula it is hard to tell whether the symbol between the two terms is ÷ or +. I think it is ÷ though / might be clearer.

@arunbaburaj9489 2 жыл бұрын

Yup. That's correct.

@griffmustard 2 жыл бұрын

Gord, good catch. I saw that as well. The last formula, the symbol is a Division Symbol. If you compare it with the Plus Symbol in the formula above, under the radical, there is a clear difference.

@timothyjewett625 Жыл бұрын

glad i read your comment, i wrote a plus when copying the formula. thanks

@tnig Жыл бұрын

So does the reactive power go back into the grid? Or is it completely wasted?

@ANIME-FOR-LYF Жыл бұрын

or cot instead of cos

@N4TH4N23 5 жыл бұрын

One of the best explanations I have seen yet, well done!

@jeanpaulkyokya2341 2 жыл бұрын

Your analogies really are helping picture these concepts. Thanks for the time invested in making these videos !

@navassharif7228 5 жыл бұрын

Man! You have cleared my vision.no one here to explain like this.upload more and more video .you have great knowledge with ease of teaching.

@SS-rk7bu 4 жыл бұрын

I found KZfaq channels better than my Electrical teachers Thank you for the good explanation

@ibeatits Жыл бұрын

This may be the single best electrical engineering video I have ever seen. Such a clear and practical explanation of what is one of the most complex but fundamental concepts in electricity. Love this.

@rahulbalaji2637 4 жыл бұрын

I spent almost half a day to find the exact video that i wanted. Awesome ! Hats off to your work !

@danielhady3021 Жыл бұрын

This is the best way I've seen power factor and VARs explained. The beer analogy was genius. I tried to explain power factor and VARs to someone and found it difficult to lay out the concept without getting into inductive and capacitive reactance. The beer analogy cuts through all of that into a digestible concept for the average person.

@ryank3281 4 жыл бұрын

I hope there’s video like this during my college years. Studied about lead lag but don’t have an idea what it’s for.

@pahvalrehljkov 3 жыл бұрын

honestly, best ever explanation of power factor for me was that example with a beer glass.. so simple, yet so precise... kudos to you!

@deustitties3589 5 жыл бұрын

Great video, as always. I'm hoping you'll make one regarding three phase generators and the way they are connected (delta and Y configurations). Cheers!

@emanvlogz8088 2 жыл бұрын

This video cleared my concept of power factor. Before this, I was always confused and ambiguous. Thank you for these elaborative videos and keep it going. This channel is God sent literally

@santonio2111 Жыл бұрын

I'm very thankful on how well you explain the concept as now even though I'm currently struggling in my circuits course, I'm able to realize and connect different concepts in an ac circuit especially about this power factor. Kudos to you and look forward to watching more of your videos.

@shreyanshdas7481 5 жыл бұрын

Wow you sparked my interest in science.

@raymondgarafano8604 3 жыл бұрын

Koooooool, science is GR8. I don't even know if they teach it anymore. any kind of science the 3 classes of levers, torque /speed, We had a gr8 science teacher, he had an old telephone magneto from the Beverly Hillbillies . hookt it to a lamp. and unscrewed the bulb. magneto was easy to turn quickly. once the bulb was in the circuit, well friend, more torque needed as the current flowin thru lamp, also flowed thru armature in magneto. all those turns of wire made the armature an electro-magnet and its poles were attracted to the field magnets, that is why there was a 'drag' effect cuz work was being done. It shows from the 1st half of the experiment when lamp was not on and if a voltmeter were hookt across the lamp you would have seen the volts the mag was putting out, yet was e.z. to crank. then when lamp was lit, the work it took to lite it. so amps is the electrical equivalent of TORQUE and volts, the electrical equivalent of SPEED. Hope this helps you understand a bit more of science.

@Gooldo78 4 жыл бұрын

La mejor explicación!!! Súper genial Felicidades Y gracias!!!

@Meteora125 5 жыл бұрын

Very well explained!

@saviourmadeit 4 жыл бұрын

thank you i really appreciate what u guys are doing for us we the young engineers of today after watching numerous of your videos i now understand what my lecturer means in the class room

@alwaleed17 5 жыл бұрын

Very comprehensive video. Thank you

@user-yn5ym1od7d 5 жыл бұрын

Very nice explaination

@kevinhuffman1780 4 жыл бұрын

Thank you, I’m trying to learn about power factor, I work in an industrial plant and we deal with it for induction and synchronous motors. This is good information.

@mellowrebel4618 4 жыл бұрын

Buy an UGLYS book it has all this in it!!!and the code.

@brunobf00 3 жыл бұрын

Thank you for the detailed video on a difficult topic. Have you by any chance covered in other videos the interactions between UPS/no-break (squared waves and true sine waves) versus computer power supplies (high efficiency through PFC vs regular non PFC)? And also how the filtering mechanism (PFC) can actually overload the non sine-wave UPS?

@aaronchu0427 2 жыл бұрын

Another concise, well paced and info packed video. Thank you.

@hokmuranbayramov6906 3 жыл бұрын

The best video and explanation ever. I understood totally and found answers to my lots of questions. Thank you very much!

@MickyBlutube 5 жыл бұрын

Thanks, great explanation.

@berrec2650 4 жыл бұрын

Outstanding, one of the best presented graphical and methodology topics I have viewed

@MrReeferRod 9 ай бұрын

Awesome! I’ll be sure to use the beer analogy next time I have to explain PFC to anyone! Bloody brilliant idea especially when at the pub and wanna sound clever! Cheers from Australia mate and keep up the great vids 😊👍🍺

@ahmedraed5141 5 жыл бұрын

Simple..enjoyable..brilliant🔥

@Deepanimosity 4 жыл бұрын

I got my EE degree 7 years ago and it wasn't until this video that I actually understood this concept.

@RofieeTwo 4 жыл бұрын

The biggest problem with most universities teaching EE is their emphasis. They emphasize too much on doing the complex calculation instead of basic concepts. What are we trying to accomplish with those numeric computations? Why is it so important to calculate the power factor? Yes, we know it is for efficiency but had no idea how to correct the problem or that utility company could charge us more (basic economics). Another big problem - fast pace. We cover so many materials every semester that everything is a rush. We don't get to enjoy and reflect back on what we have learned. Having an EE background actually helps me enjoy these videos, like watching a good movie - no stress at all compared to in an actual class. Made me appreciate all the things I have learned in EE. Got my EE degree in San Diego, California.

@bruceebikewenemoweikelly2151 2 ай бұрын

I recently had a talk about this with my colleague. This is a really great video. 👍

@bkpunt8633 Жыл бұрын

beer analogy was the best!!! thank you!

@JEDELCEL 5 жыл бұрын

Great videos of yours, I appreciate deeply each one of them. I've found the animations particularly descriptive, much more than all the drawings I could see on student books. I did not go through all the commentaries to check whether someone already commented on the slide with the trigono. A minor mistake :. True Power [kW] = Apparent Power [kVA] x cos(Theta) or True Power [kW] = Reactive Power [kVAr] / tan(Theta) but not True Power [kW] = Reactive Power [kVA] x cos (Theta). I guess you meant : equation 1 squared + equation 2 squared = equation 3 squared, so Eq1 should read : True Power [kW] = Apparent Power [kVA] x cos(Theta). Correct ? Also Power Factor = cos(Theta)=True Power/Apparent Power (the division symbol can be confused with a + sign). This was already mentionned in a previous comment. Hoping it helps.

@sheepleslayer586 4 жыл бұрын

Binge watching all his vids. Not in school atm, but still found them interesting and insightful.

@robo-suport_czrobofactory3116 3 жыл бұрын

you are a live saver, i didnt comprehend alot of the basics before seeing your animations...

@bojieboi9646 2 жыл бұрын

The concept of the Power Factor has been very well explained. I hope that electronics engineers from our school find this channel. :)

@bobgarr6246 4 жыл бұрын

After many decades of doing operations, maintenance and repair in power substations and not " fully " grasping the concept of kva power factor, which was used for transformers, very large transformers, fan plant motors, pump room motors, compressor motors, overhead crane motors etc. I now have a better understanding of power factor and kva rating than I did all those years working with equipment with a kva rating. To be fair, in performing my job a true understanding was not nessecerry as I had no part in the design and specifications of the equipment, that was the engineering department. I just operated, maintained and repaired the equipment. Thanks for a better understanding.

@keremsahin5482 2 жыл бұрын

Many thanks for this excellent and simple explanation. This video and each video in this channel is very precious. You guys rock!

@timmyhigh9213 4 жыл бұрын

Love your videos, explanations are tremendous!

@caphekythuat 5 жыл бұрын

Very nice.Thank you !

@stevepritchard7957 3 жыл бұрын

A great video and analogy to how power factors affect current supply 👏

@1985WUCT 4 жыл бұрын

This is very very very useful! Thank you!!!

@zone_luck5242 2 жыл бұрын

those books (of 1000s of page) made it more difficult for us to understand these concepts. And it took Paul, just an 11 mins to teach us this query. Keep going brother! we need more of you.

@prasantakumarsahoo8673 4 жыл бұрын

Excellence demonstration.Thank you.

@heatherhamilton2597 5 жыл бұрын

Terrific video! Thank you.

@clairhikawai2171 4 жыл бұрын

So brilliantly simple and clear. Thank you

@Mr2Xri 4 жыл бұрын

The best explanation that I have ever seen!!! 1000 BRAVO

@jchabli 5 жыл бұрын

after watching 18 videos, my first comment : THANK YOU

@ezrakimutailel1718 2 жыл бұрын

Can't think of such kind of analogy, drinking beer for the past 17yrs and being electrical technician for the same period unable to figure out this analogy of a glass of beer and P. F. you are genius dude

@armadatint 5 жыл бұрын

Awesome videos. Great teaching

@ednogg47 3 жыл бұрын

This video helped a LOT! Thanks for making it

@AMS-1 2 жыл бұрын

Wow thanks for the explanation. To the point and really well explained. Wish my lecturers explained in this way.

@querrythis 3 жыл бұрын

From 1 query, you have me hooked. Seriously.

@noussaibamennai1484 4 жыл бұрын

There's a mistake sir check 2:41 True power = apparent power kva X cos théta . 😇

@pusongpinoy754 3 жыл бұрын

i noticed that too because cos angle should be VAr/SVA from the power triangle

@pusongpinoy754 3 жыл бұрын

correction, should be KW/VA

@erfan_muhammad 3 жыл бұрын

yup.. it was repeatition of first formula.. just play around with that.

@matt.baller 3 жыл бұрын

Thanks so much for these videos. I have zero background in electrical engineering (except GCSE physics in 2002...) but am in a relevant industry now. I'm also awful with maths. I don't need to be the expert at all but I'm working to understand the basics. These videos are so well made, clear, and easy to understand... Thank you again I really appreciate it!

@bishwoshrestha2130 4 жыл бұрын

Thanks for This video, it is found very useful for me. Though it is simple and learnt in college, leaning it now while in need is more useful.

@peckelhaze6934 5 жыл бұрын

A very good explanation.

@Mic_Glow 4 жыл бұрын

I'll use the beer analogy on my certification extension exam.

@Jaden-up3bg 4 жыл бұрын

YES! yes!! This is what I needed!!

@TimvanWessel 2 жыл бұрын

I wish every school could explain as clearly as the video's on this channel they really help me understanding what im learning now. If they would be in dutch i would have dragged the class to this course. One request could you do one on Harmonics? I find it hard to correctly understand this. Or it could be that im not ready for it.

@yiannisserpico2646 Жыл бұрын

This video should be taught on all electricity engineers if they truly want to understand what power factor is. You are fantastic!!

@puts1421 5 жыл бұрын

i have sat in week long seminars about harmonics and power factor....but as soon as i saw the beer glass analogy it all made sense. lol cheers mate.

@michaeleconomides4054 4 жыл бұрын

Great stuff! Much better than all these low grade tech "learning" videos on KZfaq, most of which come out of India.

@parinazzainali4526 5 жыл бұрын

thank you well explained !

@GururajBN 2 жыл бұрын

Superbly lucid explanation. I don’t think I could have understood the subject but for this video. I thought that voltage multiplied by amperage gave wattage or energy. Thank youuuuu! 👌

@GowSi_Knowledge_Park 5 жыл бұрын

Clear explanation about power factor. Very nice video.

@boomgee9735 5 жыл бұрын

please keep on making videos like this.. thank you

@sandymiguel3737 3 жыл бұрын

Your channel is amazinggg!!!! Thank you for this awesome content!!

@ancientmariner7473 4 жыл бұрын

Well explained. Right I'm off to the pub now for a pint of Aspalls cider - no reactive Power for me!

@jmr 2 жыл бұрын

I was just trying to figure out what an acceptable power factor was...... I got a little bit more information. This was a great refresher on some things I forgot.

@bandaraekanayake9483 4 жыл бұрын

Very important video lesson about electrical power factor explanation Thank you very much.

@mgamga 3 жыл бұрын

Great Episode, Thank You.

@saurabhpathak3527 4 жыл бұрын

Thank you so much sir...best explaining and delivering skills .

@imantssafronovs9245 2 жыл бұрын

Best electrical ed channel out there.

@zuhadbinkhalil3966 3 жыл бұрын

This video is very helpful. Thanks a lot for this amazing explanation.

@habotssar8429 4 жыл бұрын

This is a pure Electrical Engineering class!! I'm excited!! When you talk about phasors you are talking about complex numbers! I love the Euler identity and Taylor series around zero (aka macLaurin Series) ... eipi = -1 😂 To achieve maximum power transfer coupled circuits must comply with: Z1 + Z2 = R Where Z1 = Z and Z2 = Z* Z is a complex number/impedance 😂😂

@shubhamupman7260 2 жыл бұрын

Tysm!! Never understood these concepts so well before

@rahgahnah 4 жыл бұрын

Hey look some abstract concept from first year where I had no idea what the instructor was talking about. Good thing for you tube...

@radhakrishna1008 5 жыл бұрын

so good so good...very informative...

@NovaNinja_ 4 жыл бұрын

My electrical professor was old school and he taught us how to calculate power factor without special meters that tell you what it is. Until today I didn't know you could actually measure apparent power lol. Good to know because I forgot all the formulas :)

@danielmanosalva3739 3 жыл бұрын

Was about to rant about the KVAR being "useless" but I saw the explanation later. Well done.

@sk8pkl 4 жыл бұрын

Very helpful! Thankyou very much!

@sun99149 4 жыл бұрын

i have to say this is a very very good video!! Thanks!

@alexakishatingson6248 2 жыл бұрын

I am an electrical practioners here in the phillipines.. Im so very thankful for studying like this. keep up the goodwork. 😉

@sameeranavod6058 Жыл бұрын

Great explanation! Thank you

@cragonaut 5 жыл бұрын

Just a quick comment on your font. Your division symbols look incredibly like plus signs; in fact until I heard your narration I thought they were addition expressions. Perhaps consider substituting slashes (for space saving) or expressing them as fractions (for clarity).

@ZiinokZzHD 4 жыл бұрын

Hey man, that's what 4K was invented for

@OatmealTheCrazy 3 жыл бұрын

On the calculations at the end, I thought the 0.96 was a 0% until the audio told me what it was supposed to be lol

@MrPlankton996 4 жыл бұрын

animation at 2:30 - as the foam (Q) increases, and the glass remains the same (S), beer (P) should be decreasing. In the triangle it's a little bit messed up, but I got your point.

@jantrisko 3 жыл бұрын

Your observation is correct. And I will add that the right unit for reactive power is var not VAr.

@syra9806 3 жыл бұрын

Yeah, I was looking for this comment, I noticed the same :)