Why CT secondary can’t be kept open circuited | Explained | TheElectricalGuy

Why CT secondary is always short circuited? Why we can't keep CT secondary open circuited? By the end of this video you will have a clear idea about why CT secondary shorted always? Current transformers cts video.
➜ Working principle of Current Transformer : • Working Principle of C...
➜ Impact of Secondary load on primary of Transformer : • Transformer Insights: ...
➜ Full Current Transformer Playlist : • Current Transformer
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[@123kalaiselvan]

Thanks 🙏 Gaurav day by day my knowledge in electrical is increasing because of watching your videos❤

[@GauravJ]

Happy to know that! Keep watching keep learning 😇

[@danoilca]

Hi! In my point of view you have made a mistake: Vp is not 36 kV. The value of Vp is equal to the voltage drop produced by the CT in the series circuit, with Vp max at1000 A (and much more in short circuit situation).
The main difference between a conventional transformer and a CT is that in the former, the primary current depends on the secondary current and the magnetizing flux is the subtraction of the flux produced by the primary current and the flux produced by the secondary current.
In the CT, the secondary current depends on the primary current and within certain limits given by the load characteristics, the resulting magnetic flux will also be as in the conventional transformer, the flux produced by the primary current minus that produced by the secondary current.
If for some reason the load on the secondary winding decreases, to maintain the balance of currents and flux, the secondary voltage must increase, for example, if Ra is 20 Ohm instead of 2 Ohm, the voltage at the CT terminals will be 20 V instead of 2V for the same current of 1A . In the hypothetical case that the secondary load is an infinite impedance Ra=∞ (open circuit), the secondary voltage would increase for keep the balance current in circulation until it reaches its dielectric strenght limit.

[@subhampoddar3932]

I also agree with @danolica ... Please give the clarification on that @Gaurav J

[@kamakaziozzie3038]

Transformer theory is arguably one of the most complex disciplines of overall electrical theory.
It’s nice to see someone break it down into smaller easier to understand videos. You could spend a year making videos on transformers and their different variants.

[@ragunathansrinivasan6324]

It i😂s explained in elaborate way.Thank you.

[@RabinMalimbo-wu2xm]

Thanks For being my Role Model and Teacher as Well
I appreciate you

[@GauravJ]

I appreciate that!

[@ManiKandan-kf6qe]

Very well explained brother.

[@tapananilsamant2283]

Nice video... Making complex things simple... God bless u....

[@GauravJ]

Thanks a lot 😊

[@nishant1088]

Thanks Gaurav J, always a great refresher for professionals like me.

[@GauravJ]

Good to know that!!

[@taninswgnamwong496]

Many thanks for the video, this is recall my memory from my institute of technology I have learned, it was taken a few days to gain understood but with your video it take only a few minutes to understand everything behind it.

[@GauravJ]

Glad it helped 😇

[@akbanchhor1499]

Excellent explanation with calculation 🙌💯

[@GauravJ]

Glad it was helpful!

[@francisjeremybennie5029]

Very helpful. Thank you.

[@GauravJ]

Thanks for the feedback

[@KollysmanElectric]

Thank you for this amazing explanation on why CT should not be open circuited. ❤

[@GauravJ]

Glad it was helpful!

[@ratilalpatil995]

Very Helpful

[@GauravJ]

Glad it helped

[@taher10111]

well well...nicely explained.Thanks a lot sir..

[@GauravJ]

You are most welcome

[@alanwhite4003]

Brilliant, very well done 👏

[@GauravJ]

Thank you so much 😀

[@KibetKelvin-zr5un]

Things I was getting complex now am getting it easy ,thanks

[@GauravJ]

Good to know that!! Do share!!

[@alhajiabubakarrkargbo769]

It’s very helpful and simple to understand. Thanks for the effort and will be grateful if you can make video lecture on CT sizing

[@GauravJ]

Thanks !!

[@leonidesbayson-img1172]

Helpful. Thanks

[@GauravJ]

Glad it was helpful!

[@listen2gether538]

Perfect ❣️

[@manusibs]

please a video on auto transformer construction and testing

[@Sudharshan9834]

Exllent explanation sir,❤

[@GauravJ]

Thanks and welcome 😇

[@mayurvaghela185]

A huge thank you sir .....

[@GauravJ]

Most welcome

[@wlz70try]

Thank you Sir ❤❤❤❤❤

[@GauravJ]

Most welcome

[@zainrana6924]

Why we use CT shorting relay in the HV & LV side of auto-transformer in the substation?

[@BattlegroundsMobile-fb9pi]

Very helpful boss

[@GauravJ]

Glad to hear that

[@san002100]

Hi brother, if CT primary is no load condition only 36kV voltage present & CT secondary also open whether CT secondary terminal voltage will present.

[@mayurvaghela185]

Helpful....

[@GauravJ]

Thanks for the feedback

[@MrAngkorborey]

Great content bro

[@GauravJ]

Glad you think so!

[@norankunda3993]

You are the best ❤

[@GauravJ]

Thanks!!

[@Sudharshan9834]

Please make video on the C(capacitance) point why point sir i seen all equipments(Ct,Pt)

[@abdoomara4892]

❤Very helpful

[@GauravJ]

Glad you think so!

[@josephwodi3820]

helpful 🙃

[@honomegegnet7306]

👉👉👉 36000 KV a very dangerous one. I have not seen this phenomena until this time thank you.

[@badshahengineeringvlogs9718]

It's helpful thanks ... please make video on etap

[@GauravJ]

Thanks for the feedback

[@cherediribe9281]

please do us a video on PID Controller

[@bhaskararao4319]

Hi.. I have seen all videos.for equipments, it has very clearly explained of equipments. Request you to present for details power transformer with the parts and function wise.

[@GauravJ]

Thank you! Sure. I will try that 👍🏻

[@brightsonamos9506]

HELPFUL

[@GauravJ]

Glad it was helpful!!

[@poovarasang8476]

Hi I hope you are doing well..
Why the CT star point towards protection area (for example line protection means towards line or bus bar means towards bus) & how relay knows it ..?
Please create some about this topic

[@saretpreap4978]

Helpful

[@GauravJ]

Glad to hear that

[@abdullaeyad4188]

Thank you for your smooth and clear explaination !
How come an open circuit condition is dangerous for the CT but not for the transformer ?

[@stargazer7644]

Because there is still current in the primary of the CT with an open secondary, but in a regular transformer if there's no current in the open secondary, then there can be no current in the primary. This was the core takeaway from this video.

[@trader573]

❤

[@Sudharshan9834]

Sir how much voltage is induced in case of Secondary is short circuit,in the video only said the voltage drop V=IR=1*2=2 volts this only voltage drop, what about the induced voltage in secondary,i get confused sir

[@stargazer7644]

The voltage in the secondary depends on the load on the secondary. With 2 ohms, it is 2 volts. With an open circuit, it is megavolts.

[@Sudharshan9834]

Turns ratio a=primary turns/Secondary turns,N1/N2, where transformation ratio is K=secondary turns/primary turns,N2/N1

[@JokerJoker-tm8rh]

If the meter is connected to the secondary we are getting the voltage drop of 2V then , then 36000Kv- 2v will be resultant voltage even meter is connected, then how could be the safe.

[@stargazer7644]

When the meter is connected, the voltage is 2V. Not 36000kV-2V.

[@mohsenbahoosh2109]

prfect.. just pls add Persian subtitle

[@vickytwentythree]

He is from India how would he add a Persian subtitle?

[@Sudharshan9834]

If in case of potential transformer this not happened why sir,there also secondary having winding

[@GauravJ]

Potential transformers are connected in parallel so just like a regular transformer

[@Sudharshan9834]

If I open neutral point of PT what happen sir

[@abhinavthodupunuri2464]

helpinggg

[@Sudharshan9834]

In case transformer nothing when secondary is open circuit Why both same principles

[@stargazer7644]

Because there's no current in the primary of the conventional transformer, but there's current in the primary of the CT.

[@MultiGaneshbabu]

Helpful

[@GauravJ]

Glad it helped

[@LawrenceChipandu]

Helpful

[@GauravJ]

Glad you think so!

[@sharmitaoran1734]

Helpful

[@GauravJ]

Thanks for the feedback!!

[@gerardogamez6905]

Helpful

[@GauravJ]

Thanks for the feedback!