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

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

Рет қаралды 13,381

6 ай бұрын

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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Пікірлер: 88

@123kalaiselvan 6 ай бұрын

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

@GauravJ 6 ай бұрын

Happy to know that! Keep watching keep learning 😇

@danoilca Ай бұрын

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.

@kamakaziozzie3038 6 ай бұрын

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 6 ай бұрын

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

@RabinMalimbo-wu2xm 6 ай бұрын

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

@GauravJ 6 ай бұрын

I appreciate that!

@nishant1088 6 ай бұрын

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

@GauravJ 6 ай бұрын

Good to know that!!

@tapananilsamant2283 6 ай бұрын

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

@GauravJ 6 ай бұрын

Thanks a lot 😊

@taninswgnamwong496 6 ай бұрын

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 6 ай бұрын

Glad it helped 😇

@akbanchhor1499 2 ай бұрын

Excellent explanation with calculation 🙌💯

@GauravJ 2 ай бұрын

Glad it was helpful!

@KollysmanElectric 3 ай бұрын

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

@GauravJ 3 ай бұрын

Glad it was helpful!

@francisjeremybennie5029 5 ай бұрын

Very helpful. Thank you.

@GauravJ 5 ай бұрын

Thanks for the feedback

@ManiKandan-kf6qe Ай бұрын

Very well explained brother.

@alanwhite4003 2 ай бұрын

Brilliant, very well done 👏

@GauravJ 2 ай бұрын

Thank you so much 😀

@taher10111 2 ай бұрын

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

@GauravJ Ай бұрын

You are most welcome

@KibetKelvin-zr5un 3 ай бұрын

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

@GauravJ 3 ай бұрын

Good to know that!! Do share!!

@alhajiabubakarrkargbo769 6 ай бұрын

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 6 ай бұрын

Thanks !!

@leonidesbayson-img1172 5 ай бұрын

Helpful. Thanks

@GauravJ 5 ай бұрын

Glad it was helpful!

@Sudharshan9834 6 ай бұрын

Exllent explanation sir,❤

@GauravJ 6 ай бұрын

Thanks and welcome 😇

@mayurvaghela185 2 ай бұрын

A huge thank you sir .....

@GauravJ 2 ай бұрын

Most welcome

@MrAngkorborey 6 ай бұрын

Great content bro

@GauravJ 6 ай бұрын

Glad you think so!

@ratilalpatil995 Ай бұрын

Very Helpful

@GauravJ Ай бұрын

Glad it helped

@BattlegroundsMobile-fb9pi 6 ай бұрын

Very helpful boss

@GauravJ 6 ай бұрын

Glad to hear that

@norankunda3993 6 ай бұрын

You are the best ❤

@GauravJ 6 ай бұрын

Thanks!!

@listen2gether538 6 ай бұрын

Perfect ❣️

@mayurvaghela185 2 ай бұрын

Helpful....

@GauravJ 2 ай бұрын

Thanks for the feedback

@abdoomara4892 3 ай бұрын

❤Very helpful

@GauravJ 3 ай бұрын

Glad you think so!

@wlz70try Ай бұрын

Thank you Sir ❤❤❤❤❤

@GauravJ Ай бұрын

Most welcome

@badshahengineeringvlogs9718 6 ай бұрын

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

@GauravJ 6 ай бұрын

Thanks for the feedback

@gerardogamez6905 6 ай бұрын

Helpful

@GauravJ 6 ай бұрын

Thanks for the feedback!

@bhaskararao4319 6 ай бұрын

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 6 ай бұрын

Thank you! Sure. I will try that 👍🏻

@brightsonamos9506 2 ай бұрын

HELPFUL

@GauravJ 2 ай бұрын

Glad it was helpful!!

@manusibs 6 ай бұрын

please a video on auto transformer construction and testing

@josephwodi3820 Ай бұрын

helpful 🙃

@abdullaeyad4188 Ай бұрын

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 24 күн бұрын

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.

@zainrana6924 21 күн бұрын

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

@honomegegnet7306 2 ай бұрын

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

@san002100 6 ай бұрын

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

@Sudharshan9834 6 ай бұрын

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

@cherediribe9281 6 ай бұрын

please do us a video on PID Controller

@Sudharshan9834 6 ай бұрын

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

@trader573 6 ай бұрын

❤

@mohsenbahoosh2109 6 ай бұрын

prfect.. just pls add Persian subtitle

@vickytwentythree 6 ай бұрын

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

@Sudharshan9834 6 ай бұрын

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 24 күн бұрын

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.

@JokerJoker-tm8rh Ай бұрын

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 24 күн бұрын

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

@abhinavthodupunuri2464 Ай бұрын

helpinggg

@Sudharshan9834 6 ай бұрын

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

@GauravJ 6 ай бұрын

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

@Sudharshan9834 6 ай бұрын

If I open neutral point of PT what happen sir

@Sudharshan9834 6 ай бұрын

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