Current Transformers (CT)

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  • čas přidán 16. 06. 2024
  • Current transformers are used extensively in metering and circuit protection. Eaton's Power Systems Experience Center is the ideal place to learn how to properly apply CTs considering accuracy, types, safety, temporary and permanent applications.
  • Věda a technologie

Komentáře • 120

  • @jmsule9367
    @jmsule9367 Před rokem +30

    Just about a quarter of an hour, yet one gets real value comparable to a 24hrs lecture. Thank you

  • @sajalj
    @sajalj Před 4 lety +12

    This is one of the best video posted on this channel. Very well explained.

  • @Z901Z
    @Z901Z Před 2 lety +12

    Your definition of a CT alone at the beginning is worthy of millions! No one has been able to explain to me what a CT is properly until now...

  • @michealeniguse4862
    @michealeniguse4862 Před 2 lety +3

    This is the best and detail presentation! Please keep up on uploading more videos. Thank you!

  • @TradingEquipmentSolution
    @TradingEquipmentSolution Před 2 lety +1

    This is one of the most videos that was shared a good information about CTs, Thanks so much.

  • @abdeldjalilselama2490
    @abdeldjalilselama2490 Před 2 lety

    The Best Video Explaining a CT on youtube to this date

  • @chudoe3459
    @chudoe3459 Před 3 lety +2

    Great video. I appreciate the thoroughness.

  • @closetcleaner
    @closetcleaner Před 4 lety +40

    It was about time someone posted a good video on CTs. Thank you.

    • @westongenesis7007
      @westongenesis7007 Před 2 lety

      i guess im asking the wrong place but does anybody know of a tool to get back into an instagram account??
      I somehow forgot my login password. I would love any tips you can offer me!

    • @conradomar3455
      @conradomar3455 Před 2 lety

      @Weston Genesis instablaster :)

    • @westongenesis7007
      @westongenesis7007 Před 2 lety

      @Conrad Omar thanks so much for your reply. I got to the site on google and im trying it out now.
      I see it takes a while so I will get back to you later with my results.

    • @westongenesis7007
      @westongenesis7007 Před 2 lety

      @Conrad Omar it worked and I now got access to my account again. Im so happy!
      Thank you so much, you saved my ass :D

    • @conradomar3455
      @conradomar3455 Před 2 lety

      @Weston Genesis No problem :)

  • @AsanMasraf
    @AsanMasraf Před rokem +1

    This is how presentation and explanation should be, many thanks.

  • @kankoeadamahhemazroyao.9485

    Indeed simple explanation of current transformer
    Great video.
    Thanks

  • @azeemahammed8646
    @azeemahammed8646 Před 3 lety +1

    thanks a lot,this is the video that i was looking for

  • @SuperIndianmuslim786
    @SuperIndianmuslim786 Před rokem +2

    Great low cost technique for measuring low frequency, high current but for higher frequencies and lower current measurements Hall effect sensors are used but those are pretty much expensive.

  • @josediaz2643
    @josediaz2643 Před 3 lety

    Excellent video!!!!! Great Work!!!!!

  • @brianthecryinlion
    @brianthecryinlion Před rokem

    This was a great video. Thanks!

  • @danmac6552
    @danmac6552 Před 3 lety +12

    Loved the acting! What a great video packed with useful information. It would be nice to have more information on the test procedure that produces the excitation curves.

  • @SB-dc9qb
    @SB-dc9qb Před 2 lety

    This is great knowledge. Thank you.

  • @Croatien007
    @Croatien007 Před rokem

    Great video, wish I could find a video about CVTs that is good like yours

  • @ian6083
    @ian6083 Před 2 lety

    Thank you for the lesson!

  • @Vigneshvicky-sn1qy
    @Vigneshvicky-sn1qy Před 3 lety +2

    Amazing explain. Thank you sir

  • @EngineeringApi
    @EngineeringApi Před 3 lety +1

    Great Video and nice explanation

  • @NachshoN55555
    @NachshoN55555 Před 2 lety

    Very informative. Thank you.

  • @sirousmohseni4
    @sirousmohseni4 Před 3 lety

    Excellent video.
    Thanks

  • @lalmohanjena4524
    @lalmohanjena4524 Před 2 lety

    Nice demonstration.

  • @pradeepkumar5205
    @pradeepkumar5205 Před rokem +1

    Very good information. Can you explain, how to choose the resistance value that can be connected across the CT output?

  • @rich5034
    @rich5034 Před rokem

    Makes me want to apply at Eaton!

  • @ronaldosilva330
    @ronaldosilva330 Před 28 dny

    Congratulations 👏!

  • @barzantawfeeq4124
    @barzantawfeeq4124 Před 2 lety

    thnx a lot for your clear explaination👍👍👍👍👍👍👍👍👍

  • @runbou3485
    @runbou3485 Před 2 lety

    thanks ticher 👏អគុណ

  • @Kheljagat536
    @Kheljagat536 Před 3 lety

    Great explanation

  • @runbou3019
    @runbou3019 Před 2 lety

    Thanksអគុណបង👍👏

  • @oscarmwandu8802
    @oscarmwandu8802 Před rokem

    Thank you for the information

  • @franciscoorlandomacuacua1864

    very interesting learning.

  • @malaygopani1894
    @malaygopani1894 Před 3 lety

    Great video

  • @pujagautam6853
    @pujagautam6853 Před 4 lety

    Realy interesting 👌

  • @ilawagbonaustin2013
    @ilawagbonaustin2013 Před 5 měsíci

    simple and understandable presentation

  • @maqsoodahmed8043
    @maqsoodahmed8043 Před 2 lety

    Very nice way to explain

  • @gauthamkrishnan3487
    @gauthamkrishnan3487 Před 4 lety +1

    excellent.

  • @iraqresitance9663
    @iraqresitance9663 Před 3 lety

    Hello from iraq well done

  • @initiallearnwithme
    @initiallearnwithme Před měsícem

    great topic

  • @fa6151
    @fa6151 Před 2 lety

    Thank you so much 👌

  • @rumeshrenuka2513
    @rumeshrenuka2513 Před 3 lety

    Brilliant explanation about CT

  • @meptvshow6699
    @meptvshow6699 Před rokem +1

    thanks for share

  • @noelfaithfulkari2857
    @noelfaithfulkari2857 Před 9 měsíci

    Amazing knowledge. Please 🙏 could you do video for VT and differential relay for transformer.

  • @arunprasaath8290
    @arunprasaath8290 Před 3 lety

    nice and useful video

  • @dhananjay4525
    @dhananjay4525 Před 2 lety +1

    You da best

  • @dowbatw
    @dowbatw Před 4 měsíci

    I think 2:11-2:20 may be wrong? When primary winding has 200 turns and secondary winding has 1 turn, 1000 amps on primary side would produce 1000×200 = 200000 amps on secondary side.

  • @jeffb.6470
    @jeffb.6470 Před 2 lety +4

    Great presentation!
    Anyone know the software used to show the vector and sinwave illustration at 10m46s?

  • @akhil__dev
    @akhil__dev Před 2 lety

    Great video. But the background music sounds like it's a survival video or an explanation of a space mission.

  • @mallikarjunaraosutraye1076

    Sir here 1000/5 A, output is 5A is independent on the burden Impedance.?

  • @loginavoidence12
    @loginavoidence12 Před rokem

    6:18 never leave CT unshorted or unburdened when energized. i had a trouble call from an engineer who burned down a brand new 5k volt breaker because he energized it with the CTs open. what happens is they run away. all the terminal blocks, which are rated to take 30a continuously, all burned into a single smelly glob of plastic

  • @jahidmrida64
    @jahidmrida64 Před 8 měsíci

    Thank You

  • @sohailjanjua123
    @sohailjanjua123 Před 2 lety

    Hi, I like your video. Thanks

  • @paulinusike954
    @paulinusike954 Před 2 lety +1

    Good lecture thank you very much. please can anyone help me on how to connect a motor protection relay with an external CT. I have an adjustable motor protection relay with internal CT the range is from 10 - 999A, the space for primary main conductor cannot contain my cable size based on the motor capacity, so i want to make use of external CT to achieve same result.

  • @bobcocampo
    @bobcocampo Před 2 lety

    Do you have any guide for paralleling of Current transformers?

  • @biaelectric9066
    @biaelectric9066 Před rokem

    The diagram shows DC current. How is the load being measured on an AC system? I.e. why does the CT direction matter?

  • @seablue1085
    @seablue1085 Před 2 lety

    azaming! thanks

  • @electromagneticworld
    @electromagneticworld Před rokem

    👍🏻👍🏻

  • @MasonAmadeus
    @MasonAmadeus Před 3 lety +3

    Great, well presented video. Thank you! Although I won't lie, the acting at the very beginning isn't going to win any BAFTAs, haha.

  • @farukahmed7263
    @farukahmed7263 Před 2 lety

    Nice

  • @surendrakverma555
    @surendrakverma555 Před 4 lety +1

    Very Good 👍👍👍

  • @alexnoggle1874
    @alexnoggle1874 Před 3 dny

    INFORMATION OVERLOAD AHHHHHHHHH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    (thank you)

  • @shubhammunde2331
    @shubhammunde2331 Před 2 lety

    Can i use 6 CT a one meter for different one more cable?

  • @Artistic_S0ul_
    @Artistic_S0ul_ Před 2 lety +1

    I have a question. Please could you tell me what would happen if the primary flow current is 300A permanently and the CT protection ratio is only 200/5 A 10 VA? Is there a possibility of damage to the CT?

    • @kalininyuri
      @kalininyuri Před 2 lety +1

      It will burn

    • @DizzyD4212
      @DizzyD4212 Před 9 měsíci

      Depends on the thermal rating factor (TRF) of the CT, and the input ratings of the protection/measuring device. If the TRF=2.0 (very common), the CT will be fine, but will output a continuous 7.5 amps on the secondary. If the protection device can handle that 7.5 amps indefinitely, all will be good. This is routinely done in metering applications in substations.

  • @StephenAkins
    @StephenAkins Před 2 lety +3

    Am I correct in assuming CTs can only work with AC?

  • @robertb2444
    @robertb2444 Před 3 lety +1

    Opening ct circuit on 600 volt rated or less is not as dangerous as the higher voltage rated. The older metering handbook stated this. But once an opinion becomes excepted as fact, reality is lost! We have be changing 3s meters for years without a bypass or shunt. Which opens the current circuit!

  • @kythuatientranthanhtien8135

    Help me. What mean rated current 10/min. 0,08A? Thanks

  • @chungdutshering2611
    @chungdutshering2611 Před 3 lety

    Can you make about potential transformer

  • @boguslawasihorova
    @boguslawasihorova Před 3 lety

    Can somebody explain. How is possible 0 vector summary in CT between N neutral and L phase.

  • @rosarioparlatore7020
    @rosarioparlatore7020 Před 3 lety

    Hi, i would like to understand better the concept opening circuit can be dangerus. The voltage step up to 1000Volts. So better to keep always the circuit close or shunt in place

    • @robertb2444
      @robertb2444 Před 2 lety

      On the 600 volt rated cts the open circuit voltage will only rise a few hundred volts and not thousands., but the higher voltage rated ones will.

  • @johnjacobjinglehimerschmid3555

    So how would you choose a CT for residential power monitering?
    Say a 20a line and I'd like to reliably know if there is 0.5a to 16a being used? Is there an equation that helps to select appropriate CT?

    • @mikeiver
      @mikeiver Před 9 měsíci

      They are all over ebay for cheap. They need a burden resistor to convert the current to voltage.

  • @crimznn17
    @crimznn17 Před 3 lety

    Cold sequence next

  • @soundslight7754
    @soundslight7754 Před rokem

    CT is a sensor, it's true that it works on electromagnetism principles and to pick up current passing without interrupting it, it has to rely on induction, so it works like a transformer, but it remains a sensor. CT stands for current transducer (= sensor).
    If we call this device a transformer, then perhaps we can call all radio devices including all mobile phones transformers because they all work on electromagnetism and induction principles, no?

    • @loftycloud5404
      @loftycloud5404 Před 9 měsíci

      Everyone I know, including myself, and every book and manual I read called it a current transformer. And VT or PT as voltage or potential transformers and both are grouped under instrumental transformers as opposed from a power transformer like a distribution transformer. I get that instrumental transformers are essentially sensors, but everybody and everything calls them transformers because they are in essence that, and are tested and treated as such. Ex: Radio device don't spit out high voltages when back feed, and in fact can't really be backfeed effectively at all, they don't have voltage or turn ratios, are not tied to specific electric grids, no magnetic saturations points, no primary-to-secondary insulations values, etc etc. As far as I found, they are originally called transformers from the beginning.

  • @shubhammunde2331
    @shubhammunde2331 Před 2 lety

    How to connect CT meter with 3 different cables...

  • @user-dr2pg8fk2i
    @user-dr2pg8fk2i Před 2 lety

    Where is the flash protection?

  • @TimmyBoja
    @TimmyBoja Před rokem

    1:42 - why are you showing current direction on an AC system? 😮

  • @jameszhao6628
    @jameszhao6628 Před 3 lety

    What do the letters 1H,2H mean at both side of CT?

    • @sang3Eta
      @sang3Eta Před rokem

      He explains this at 10:00 what are the odds I was reading your comment just as I reached this part of the video LOL.

  • @albertmatin6683
    @albertmatin6683 Před 7 měsíci

    bonjour, pourquoi mes ton le S2 a la terre sur un transformateur de courant en basse tension

  • @ericrioux6607
    @ericrioux6607 Před rokem

    If you need either a ego boost or a humility check , come to CZcams
    This has been my humility check , Jesus fuck y’all know a lot about electricity ⚡️

  • @TimmyBoja
    @TimmyBoja Před rokem

    3:57 - agh!!!! What are those arrows support to represent?! (Hint: it definitely isn’t current!)

    • @johnjacobjinglehimerschmid3555
      @johnjacobjinglehimerschmid3555 Před 10 měsíci

      I suppose that would be the direction of the current carrying HOLES as the electrons would be going the other direction NO?

    • @TimmyBoja
      @TimmyBoja Před 10 měsíci

      @@johnjacobjinglehimerschmid3555 no. DC current has direction but alternating current doesn't - it alternates. The whole point of RMS is to remove the sign (direction)

  • @anmolmaharana5770
    @anmolmaharana5770 Před 3 lety

    From 1:48 to 2:00 how did you make the animation

  • @anmolmaharana5770
    @anmolmaharana5770 Před 3 lety

    How you are making this animated video

  • @ENGMARWAN-og4rg
    @ENGMARWAN-og4rg Před 7 měsíci

    This is definitely is a little lecture

  • @lambadapuneethraj3846
    @lambadapuneethraj3846 Před 3 lety

    Why is CT not accurate for low currents?

    • @jyotielectrical7393
      @jyotielectrical7393 Před 3 lety

      If u measure low current using low ratio ct like 5/5, 10/5
      czcams.com/video/8qK5Fz1K0ZI/video.html

    • @robertb2444
      @robertb2444 Před 2 lety

      Some of the new cts have higher accuracy at measuring the lower currents in circuits. We use high accuracy, extended range cts on new installations.

    • @robertb2444
      @robertb2444 Před 2 lety

      The magnetic field in the primary will be to low if the primary current is low. The magnetic field must be strong enough to excite the secondary.
      You can loop the primary back through the ct to increase secondary.
      If primary only has 1/4 amp, looping through ct 4 times will produce 1 amp on primary, increasing the secondary current, but the ratio will be ÷ by 4.

  • @idaras2012
    @idaras2012 Před 3 lety

    These really addresses my problems on CTs but I'll like to have some personal discussions with you , please can you inbox to have your email ?

  • @melvinmprasad6117
    @melvinmprasad6117 Před rokem

    Road Ranger RTLO.....

  • @troy6882
    @troy6882 Před 3 lety

    😃😄😁😆😅5 Smiles

  • @frankovelazko9594
    @frankovelazko9594 Před 2 lety

    The sound of the videos is not good

  • @kaysonneilly2364
    @kaysonneilly2364 Před 3 lety

    I'm calculating the number of secondary turns on a transformer where the ratio is 8:3 with a voltage of 440V and 750 turns on the primary winding and a 40 ohms resistor on the secondary winding so my brain is dead

    • @510purple
      @510purple Před rokem

      buy a megger ttr. this will give you a better idea of turns ratio. for example if the transformers primary is 12470v and the secondary is 480/277Y. divide 12470 by 277. this will give you the exact turns ratio results.

  • @nitishguptshortvideos977

    Hindi me

  • @cutterz9145
    @cutterz9145 Před 3 lety

    fuck me im dropping out

  • @islandfuelservice8248
    @islandfuelservice8248 Před 2 lety

    Umm, I still don't understand lol can he explain like I'm five?

  • @hcjoyce
    @hcjoyce Před 8 měsíci

    The music is horrible in this video