Introduction to Current Transformers Part 2: CT Polarity

🚀𝐀𝐋𝐋 𝐈𝐍 𝐎𝐍𝐄: 𝐏𝐨𝐰𝐞𝐫 𝐒𝐲𝐬𝐭𝐞𝐦 𝐁𝐮𝐧𝐝𝐥𝐞!🚀

In this series, we will introduce the current transformer and will give an example where we would want to use a CT. We'll also look at polarity marks for CTs and talk about the current transformer ratio and how to relate primary current to secondary current. Then we will take three CTs and connect them to the WYE and delta connection. In the last, we will draw the current transformer model and show the voltage currents and impedance's that are associated with the CT model.

#GeneralPAC #CurrentTransformer #CT

𝐖𝐞 𝐧𝐞𝐞𝐝 𝐲𝐨𝐮𝐫 𝐬𝐮𝐩𝐩𝐨𝐫𝐭...𝐖𝐡𝐲?

𝐅𝐨𝐥𝐥𝐨𝐰 𝐆𝐞𝐧𝐞𝐫𝐚𝐥𝐏𝐀𝐂 𝐨𝐧:

AllumiaX exclusively works with Electrical Contractors, Distributors, and other Engineering Companies. 𝐊𝐧𝐨𝐰 𝐦𝐨𝐫𝐞 𝐚𝐛𝐨𝐮𝐭 𝐨𝐮𝐫 𝐜𝐨𝐫𝐩𝐨𝐫𝐚𝐭𝐞 𝐬𝐩𝐨𝐧𝐬𝐨𝐫:

𝐆𝐞𝐧𝐞𝐫𝐚𝐥𝐏𝐀𝐂 𝐛𝐲 𝐀𝐥𝐥𝐮𝐦𝐢𝐚𝐗 - 𝐌𝐚𝐤𝐢𝐧𝐠 𝐏𝐨𝐰𝐞𝐫 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐈𝐧𝐭𝐮𝐢𝐭𝐢𝐯𝐞, 𝐎𝐩𝐞𝐧 𝐚𝐧𝐝 𝐅𝐫𝐞𝐞 𝐭𝐨 𝐄𝐯𝐞𝐫𝐲𝐨𝐧𝐞, 𝐄𝐯𝐞𝐫𝐲𝐰𝐡𝐞𝐫𝐞!

[Generalpac]

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

[Generalpac]

🎁 Enter the Thanksgiving Power System Pack Giveaway with your email! 🍀 One lucky winner will receive the Power System Fundamental Pack on November 23rd, and ALL participants get a FREE top-selling course. 📚

[Generalpac]

As 2023 comes to an end, it's time to take a breather and reflect on your journey this year. This isn't just about recognizing your wins and bumps in the road—it's also an opportunity to identify areas for growth, particularly in your learning goals. Lucky for you, our BIG END-OF-YEAR SALE is here to support you in achieving Your goals!

[Generalpac]

AllumiaX is Wishing you a joyful Independence Day!”. On this special day we are offering an amazing discount on our top-notch POWER SYSTEM COURSES, available for just $9.99 each. Valid until July 15, 2023. So, hurry and make the most of it before it's gone!

[fioricoziuc]

I knew it that in the primary the current should " goes in" where the primary dot is. But I was not aware that the secondary current has to " goes out" in the secondary dot... Thank you again!

[raja-righteousrhetorics]

Plz continue ur work... much handy and informative for people... thanks

[amyxie]

Thanks for the explanation it’s really good! What software are you using to write?

[acoustic]

Does anyone know why it is an issue since alternating current goes both ways?

[ganeshk]

Is any possibility to physically check type of Dot used in CT ? And the grounding of secondary terminal make any change on polarity?

[marcusrose]

So in your 4th drawing, 5:22, wouldn't this cause a malfunction of your relay? Due to your polarity being incorrect as current should flow into it? This also relates to faults within the transformer, wouldn't this cause an issue as the direction of current travelling to switch due to the fault?

[fransjack]

hi sir ...can i use three CT in wye to connect them to my automatic meter reading..? thanks

[mohamednasr]

isn't the connection of the c.t s at star side should be collected as delta connection to remove the
phase shift in the main transformer between delta and star windings or

[norhafizie]

Hi. I found during installation that CT's are marked P1-P2 and S1-S2. Could you explain according to this symbol, as I am always confused which one should be grounded/connect to relay whether S1 or S2.

[basyoni]

I have a problem with the dot convention. "out of the dot" could be in any direction right ?

[jimshenry]

I need help. I am confused with the dot convention. Out of the dot could be in either direction isn't it? please help me out.

[JSunday]

I came to understand why is there a polarity in an AC system. Still can't. If anyone can help me understand will be grateful.

[ahtishampervez]

This background music is very disturbing

[satyanarayanamurthy]

background ground music is very harassment to viewers.please switch off back ground mudic

[MegaRonin]

Absolutely wrong. I install and test ct's for a living.