Sumpners test

[@brightlord3923]

You're a life saver, sir.

[@Tron1467]

the secondary winding of both transformers are connected in such away that both the wires coming out of them is of same polarity the how does current flows in secondary even when switch is closed??

[@خالدهشام-ع9ش]

When applying voltage by auto transformer, why do not instruments read the local or circulating current in the another side??!! I mean why does not the current flow through the ammeter & wattmeter W1?? Another question plz, Why does a small current require by auto transformer? Why is it small?

[@nagaraju-pq6nv]

Sir, here u didn't explain how to find the temperature rise

[@kapstar346]

Sir I plzz tell me calculations for efficiency and voltage regulation on sumpners test

[@diamondsaleh2903]

plz write what you say especially the laws and calculations.....

[@sonakshi.3542]

The main thing is that u r explaining the diagram too sir ... excellent 👌 sir

[@rishigautam9295]

Sir if voltage is zero then how it is open circuit..in open circuit we get rated voltage

[@user-iy1oh6ut1z]

bcz of in this point same potential so no more current will be flow. i hope got it

[@swaroop.parmar26]

sir you exaplin this topic really easy way. Easy to understand

[@k.sravankumark.sravankumar6203]

Thanks.

[@PradeepKumar-dt3so]

Good explanation

[@tarayadav4818]

Thank u sir ...... it is very helpful for me

[@anoopr470]

Thank u sir ,,,,very easy to understand

[@jpkumarsaria]

I need this sumpners test in telugu

[@neerajkumartadepalli2001]

Excellent explanation 🔥

[@vikasp788]

Good explanation!!!!!

[@ShivaKumar-xq8yk]

Sir ,the two secondaries of of two trfs are connected in series opposition when the test is conducted for SC the rated current is applied but how currents flowing in secondary when it is connected in series opposition...?

[@Tron1467]

That is what i am asking him

[@gangadharsaragadam6562]

Here phase opposition is in secondary not in Primary in secondary hence secondaries cancelled

[@varshamishra4327]

Hlo sir ...I want to know the exact answer that why we do series opposition in back to back test ?..... What is the need of doing series opposition?

[@shiromanipandey7558]

Varsha Mishra bcz in first condition as described induced EMF in both the secondaries will cancel each other and these secondaries will act like open circuit.. to measure the shunt line parameters.

[@alfinashaik7931]

This video made my day

[@subbuguptha5924]

Nice explanation brother

[@podilashashi4974]

Saaru naa ringu naaku isthe nen vellipotha nuv vesukunna gold ring naadhe saarruu

[@ahmedelshobakey498]

Thanks

[@shashanksahu2326]

nice

[@The_BalckHole]

But, what about the switch....?

[@gangadharsaragadam6562]

If two voltages are in phase apposition then only switch will be closed otherwise voltages are add up hence more stress on windings since winding resistance is small they may get short circuit in order to avoid short circuit condition switch is used

[@dulcetmusic3071]

Sir .me to need sumpners test in telugu sir

[@anjanboorugu1678]

Thanks a lot sir🙂

[@ajaykumarbairwa5859]

wrong connection on secondary winding of transformer

[@jpkumarsaria]

Explian in telugu sir.

[@anindyabiswas3803]

Your concept is wrong...how can voltage zero give open circuit...rather current should be zero..

[@songscollections2034]

Open delta connections in transformer

[@പച്ചമനുഷ്യൻ-ഞ3ഘ]

Very useful broiii 💗💗💗

[@akhil_panjala]

Thanku sir

[@gullkhan6523]

Thank you Sir

[@veersingh-hv6zm]

Very good.

[@srikantakumargouda9561]

Sometime Your concept is wrong

[@suryakiranvishnumulkala3110]

Thanks very much sir🧡😍

[@gangadharsaragadam6562]

Thanks sir

[@lakhichanroy1808]

Bhai bhai bhai.... 😃

[@mohdafzal2573]

Thank you sir..

[@ishushukla9618]

means alot to me.. thank u so much

[@GauravGupta-pb8mk]

Thank you sir

[@rahulmeena3845]

Very very thanku sir .

[@manojkumarsinha1239]

Good vdo

[@ritwikmishra1606]

Well explained

[@tammarajesh228]

Sir thank u

[@revolution3818]

👎

[@pradeepverma5464]

nice