Introduction to Current Transformers Part 1: What are CTs and why use them?

[@Generalpac]

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[@LorddGray]

Correction: When you step down the voltage you increase the amperage. Remember that energy is never lost. So except for the heat loss, the power down the lines (wattage) has to remain the same. So the if you raise the voltage you lower the amperage (as in the step-up transformer) and visa-versa. One of the reasons we step up voltage on long-distance transmission lines is to reduce the amperage required. Also, most low-end multi-meters don't have capability of measuring AC amps. My Fluke 117 will handle it but only up to 10 amps. Considering my vacuum pulls over 12 (and much more at startup) trying this stunt with household motors could pop the fuse in your meter. And most importantly, messing with 120V power is EXTREMELY DANGEROUS! 120 is high enough to make your muscles contract and those nearest the electrode will contract more. So if you grasp the electrode, your hand will NOT release it while the current is still flowing and that (without a GFI breaker) could leave you dead. The safe and simple way to check current is to use a clamp-on amp-meter around insulated wires. Please fix this video and warn people that 120V current is hazardous!

[@AndrewMcFadzean]

*Current. Don't that infernal word. Ever.

[@kennylinda7303]

Such a good tip. Btw, I think Sihu is one of the most competitive current transformer manufacturers in China

[@Generalpac]

Thank you for your answer. Yes, you are right. Sihu is well-experienced among voltage transformer manufacturers and current transformer manufacturers. It is also an official partner of ABB.

[@faoliusiu1640]

thanks for the introdustion to current transformer, that's really help.....

[@Generalpac]

Hey you guys, thanks for the feedback. For all our upcoming videos we won't add any music. Unfortunately, KZbin doesn't allow us to remove the music from previously uploaded videos. Thank you for your understanding. -GeneralPAC team

[@jasiahian7638]

Instablaster.

[@racerx942]

Never heard of a clamp meter?

[@Hopeless_and_Forlorn]

Lose the strange sounds and I may come back and finish this.

[@Generalpac]

+Hopelessand Forlorn -- what's good background music? I tried with no music at all and it didn't sound very appealing... felt like there needed to be something. Thanks!

[@Hopeless_and_Forlorn]

What sounds good to one viewer will be distracting to another. That said, I think the level of the music (?) was too high compared to the narration. Too bad for me--I have been fascinated with CTs in aircraft since 1965.

[@Generalpac]

+Hopelessand Forlorn --- I agree that sound is in fact subjective. But you have a point about the background music of this video being too distracting. I have made an effort to reduce the background music in other videos that I have produced. But I'm tempted to use natural ambient noise instead of music... Can I get you honest opinion of the background music/noise for this video that i just released: kzbin.info/www/bejne/Y4nIeGuNds-Gbac I've chosen to use the sound of rain --- by the way, I also find CTs very fascinating especially when used for measuring tens of thousands of amps at 100+kV! Thanks!!

[@xDELFYonceagain]

+Hopelessand Forlorn If you are desperate to learn, you wouldn't be bothered about the music. This is a good video and the music isn't a big deal.

[@Hopeless_and_Forlorn]

+Trafalgar Thanks, but I spent 21 years at the front of the classroom, and I never found it helpful to distract or confuse my students with unnecessary noises.

[@j3s0n]

Man your channel is incredible. Keep it up!

[@Generalpac]

+j3s0n -- thank you sir! I appreciate your comment! I created a forum for the purpose of asking in-depth questions, learning, sharing and growing! Check it out here: generalpac.com/forum/ - I would really appreciate it if you became an active member on the forum :) -- Thanks!

[@sethtaylor5938]

Motor in example is actually 2400 volts phase to ground if feeder is Y.

[@Generalpac]

Hi Seth, Motors are usually delta connected, so it doesn't depend upon the feeder connection. The voltage across the motor will be 4160 V. Hope you find it useful. Thanks, GeneralPAC by AllumiaX

[@ferkokurka]

Greate video, thank you!

[@Generalpac]

Thank you for the valuable feedback! 😊 You might also be interested in our Power Systems Engineering VLOG series, join us here with a 30-Days FREE trial: bit.ly/PSEVlog

[@ahmetcan1229]

great video! thanks a lot :D

[@Generalpac]

Thank you for the valuable feedback! 😊 Stay tuned for more and join us at www.patreon.com/generalpac

[@AldoTorres-b4f]

Excelent *VE*

[@congvi8664]

Character In the video It's great, I like it a lot $$

[@Generalpac]

Glad you liked it! :) We just launched a new course which covers a variety of Power Systems concepts with detailed explanation and we're offering 90% OFF. Use the coupon code "PSEVLOG1" and get benefit from it: bit.ly/PSEVlog1

[@ExtremeEngineering]

thanks

[@kreynolds1123]

Its kind of funny that when drawing electrical distribution systems, so many people show current (i) flowing into a device with single arrow. With both DC and AC electrical systems one has 2 wires. At any moment in time, one will have current flowing into the device on one of those wires, and current flowing out of the device on the other wire. With AC, the current amplitide and direction changes over time. Depending on who your listening too it is common for people mistakenly interchange power current voltage. Generally, power flows (edited: I really mean "over over time power causes energy to flow") from source to end device, (positive voltage) × (positive current) or (negative voltage) × (negative current), unless you have reactive elements in an AC system that change the voltage to current phase relationship, resulting in brief moments when power flows back to the source. For example moments where (negative voltage) × (positive current) or (positive voltage) × (negative current).

[@brendonholder2522]

When you say power flow, I imagine energy over time. Is that a correct representation for the situation? If so, how do electrons flowing out of a load lose energy to the electrons flowing inside of a load (a light that uses ac current)?

[@thesageofmanypaths5935]

@@brendonholder2522 ElectroMotiveForce is converted to heat and light

[@franklinelectricaciem]

Hi What Software do you use to make this tutorials??

[@robertfaney4148]

Music in the background is a monster distraction - what do you want us to listen to ? MUSIC or your lecture ??

[@Generalpac]

+Robert Faney this was an experiment when we first started creating these videos. Clearly, the experiment failed. All new videos have background music removed. Thanks for the feedback.

[@Generalpac]

@Robert, check out the latest CT series with no distraction. Tell us what you think! kzbin.info/www/bejne/hZCThotnaNlmmtk

[@ZuhairAlsagar]

thank you

[@hungnguyen-tn5mx]

Character In the video It's great, I like it a lot $$

[@Generalpac]

Thank you :)

[@Generalpac]

You might also be interested in our latest Power Systems Engineering VLOG series, in which we talked about various power systems engineering topics along with a high-quality explanation. Follow the link to join this series in $9.99/month with a 30-Days FREE Trial: bit.ly/PSEVlog

[@Saleh19999]

amazing explanation but i think it would be better to tune down the background music a little

[@Generalpac]

Hey Saleh, For all our upcoming videos we won't add any music. Unfortunately, KZbin doesn't allow us to remove the music from previously uploaded videos. Thank you for your understanding. -GeneralPAC team

[@ikusacme]

Please what software did you use for the blackboard? Thanks.

[@abdallahhashem1178]

Isaac Ameyaw did you found the software? Because I really need it

[@Generalpac]

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[@Generalpac]

In Current Transformer course we will start from very basics: This course combines brief introduction to Current Transformer with its main characteristic and applications. You will emerge with the knowledge in principles, working, applications, sizing of CT that empowers you to have strong grip on the fundamentals of Current Transformer. This module consists of three parts, each building upon your knowledge based on previous ones. Get 𝟗𝟎% 𝐎𝐅𝐅 on 𝐂𝐮𝐫𝐫𝐞𝐧𝐭 𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐞𝐫 𝐅𝐮𝐧𝐝𝐚𝐦𝐞𝐧𝐭𝐚𝐥 𝐂𝐨𝐮𝐫𝐬𝐞: bit.ly/Current-Transformer-90OFF

[@ecstazyrm]

Background music is so irritating man!!!

[@milesrowe2263]

I think its for youtube copy right system if not the dude is sociopath

[@ecstazyrm]

Man that background noise destroyed the video. Remove it

[@Generalpac]

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[@coyhall4333]

Thanks for the videos, keep up the good work! What program are you using to draw with, and do the video screen capture? Are you on an iPad, desktop, ????

[@Generalpac]

+Coy Hall -- please post your question here: generalpac.com/forum/index.php?forums/miscellaneous.22/ Thanks!

[@Generalpac]

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[@edlee345]

Great explanation but the background music is distracting

[@Generalpac]

Hey Edward, thanks for the feedback. For all our upcoming videos we won't add any music. Unfortunately, KZbin doesn't allow us to remove the music from previously uploaded videos. Thank you for your understanding.

[@richcollins513]

4kv ac induction motor?

[@alexissheets6114]

Nyatakan matlamat dan perlukan wang

[@aleksandarzivkovic1792]

Get rid of the muzak

[@KrMurugaBarathiAMIE]

Please. Intimate. Why. Transmission. Towers. Are. Sphere. Type. At. Top..?

[@Generalpac]

Mainly to reduce corona... perhaps we can do a video on this topic? Please advise.

[@TempoDrift1480]

This is how they charge you!

[@alon34ever]

music on background ! tooooo bad, it is a scientific talks not party

[@astifcaulkinyeras]

There's an error in the beginning of the video. CTs are step up transformers. They step down current and step up voltage.

[@Generalpac]

@ryan, based on our sources, we verified that CTs are step down transformers. They step down current and voltage quantities. If you feel that is an error, please provide your sources. We are more than happy to correct our errors. CTs do not proportionally step down voltage... but they do in fact step down current proportionally by the CTR ratio. If CTs stepped-up voltage, it would NOT be very safe working on secondary voltage that is higher voltage magnitude than the primary/line side voltage.

[@Generalpac]

This is explained in our new and improved CT video here: kzbin.info/www/bejne/hZCThotnaNlmmtk

[@PENETRATQR]

holly crap, either talk or play a song but not both man.

[@Generalpac]

I hear you man... This was one of our first videos uploaded to KZbin... Learned a lot since then.

[@jaydelrosario8119]

All you need 2volts High CURRENTS...1KILLOWATT INDUCTIONS

[@mikefromflorida8357]

Damn it, what is with ridiculous and completely unnecessary music you are rudely talking over. Come on.

[@Chiavaccio]

👏👏👍💯

[@ronaldbryant5215]

Sorry fellas, but the audio is terrible and the background music is very distracting.

[@Generalpac]

We agree! That is why our new and improved CT Introduction video has no background music. check it out here; kzbin.info/www/bejne/hZCThotnaNlmmtk We are looking forward to your feedback.

[@ROCK-mn3gf]

What the fuck back ground sound irritating us avoid that sounds

[@Generalpac]

+Rakesh kumar I will remove background sound for all future videos

[@danschermerhorn2760]

Aggreed, not a place for "music"...I had to leave.

[@Generalpac]

@dan, this was one of the first videos created by GeneralPAC. The latest series on CTs is greatly improved with no music at all. I encourage you to check it out here and provide your feedback: kzbin.info/www/bejne/hZCThotnaNlmmtk

[@aceywaceypookabook]

i should go to sleep. dumb background music.

[@dragodv7735]

You talked so much,but didn't say 1 single word about....where does the current come from...? On the power line there are 112 kv...and than?

[@Generalpac]

Hello, The current is produced at generation side and travels through a high voltage transmission line (115 kV) to the distribution, where it is step downed to a lower voltage and easily utilized by the load. Hope this answers your question. Thanks, GeneralPACbyAllumiaX

[@황원우-m9f]

Thank you