REF (Restricted Earth Fault) PROTECTION of Transformer Explained in Details (हिंदी Hindi)

Рет қаралды 192,277

Nitesh Kumar

5 жыл бұрын

To watch same video in English click on below Link.
• REF (Restricted Earth ...

Пікірлер: 331

@NiteshKumarElectrical 5 жыл бұрын

Video of Difference between High Impedance & Low Impedance REF. kzfaq.info/get/bejne/l9aEY9CHqK-1l58.html हिंदी में😊

@chithiram8113 4 жыл бұрын

Sir tell me how to calculate stabilizing register value

@anmolmaharana5770 3 жыл бұрын

Sir in my gss 132/33kv trf 40mva is tripped on ref when heavy wind and rain occurs. I want to know the reason

@NiteshKumarElectrical 3 жыл бұрын

Hi Anmol, Please check the REF CT wiring from Transformer Marshalling Box to Relay end. If rain start and REF operated means ..There might be some moisture issue or loose connection of CT wiring. You may take shutdown of transformer and check Turret CT secondary box of transformer from where CF wiring is taken up to marshalling box for CT ckt paralling. Note:-But before doing anything, discuss with your senior and then take any action. This is my personal opinion and suggestions based upon my experiences.

@anmolmaharana5770 3 жыл бұрын

@@NiteshKumarElectrical ok sir.. during rain condition other feeders tripped on O/C E/F. Is there any relation between these trips and ref?

@NiteshKumarElectrical 3 жыл бұрын

@@anmolmaharana5770 No ! If other feeder is tripping due to rain means, there might be fault due to trees, punctured insulators and transient faults. But there is no relation between feeder tripping and REF. Concept & circuit is completely different. Yeah ! REF may trip due to inrush current during charging of transformer on no load.

@rajuperumandla6781 3 жыл бұрын

Nithish kumar jee you explained regarding REF protection superbly,and i hope everyone can under stood very easyly. Thank you for in-depth explanation sir jee

@amitprasad2588 2 жыл бұрын

Sir aapke jitna deeply or itne sahi dhang se kisi ko samjhate nahi dekha

@ManojKumar-rm7bn 5 жыл бұрын

Ab tak hajaaro bndo ki vedios dekhi meine but you have a great quality of explain a subject

@NiteshKumarElectrical 5 жыл бұрын

Thanks !!👍😊

@Vicky_paakad 2 ай бұрын

Thanks sir, for explaining the REF protection, specially thanks for Rs, VDR calculations.

@rajuperumandla6781 3 жыл бұрын

Nithesh kumar jee you are explained very clearly where the REF Relay will tripped ,wether restricted zone or out of the zone . Thank you a lot.

@rajuperumandla6781 3 жыл бұрын

Nithesh sir jee mera ku to bahut acha laga apka lecture. I understood very clearly. I think this vedio can understood every technician below the engineer level also. Thank you sir jee.

@wasimsharif8242 3 жыл бұрын

Bahut kuch sikha hai bhai very nice explanation

@sreeramne 5 жыл бұрын

VIDEO EXPLANATION WAS very good thanks please do continue to make more such kind of videos on different topics

@memanaspak2113 5 жыл бұрын

Keep it up...sir....clearly understand sir....with good graph and depth of knowledge...hats off....sir...

@ganeshsamal2906 Жыл бұрын

Sir transformer ki differential protection scheme pura ref wesa banaye sir please. Jitna protection hai sab banaiye. Ref pura samjh gaya sir 🙏thank you

@patelchirag9530 4 жыл бұрын

Keep it sir..it very detailed video that I only found nd superb explanation. Very detailed and in depth. We are respectful for your hardwork😊.

@patakotisrinivas1918 5 жыл бұрын

Superb explaination bro...U r efforts are really appreciable and commendable..thanks a lot for uploading this video..

@Alpha19103 3 жыл бұрын

Fan ho gaya bhai aapke explanation bka

@babjibabuseelam5218 4 жыл бұрын

Thank you very much sir, this video any one can understand ........like that u clearly explained.

@mythbuster1993 5 жыл бұрын

Very well explained... please upload more such practical videos

@muthuraman6093 Жыл бұрын

Excellent 👌 best wishes🎉 From Sweden

@petpujo2220 3 жыл бұрын

Very well discussion. I have to know much more things to know from you

@rakeshkumarrajan4549 3 жыл бұрын

Sir your explanation very simple & good. We learnt easy way of REF protection in power transformer. *Thanks a lot* 🙏🙏

@NiteshKumarElectrical 3 жыл бұрын

Welcome Ji

@anilkumarshah4523 Жыл бұрын

you are great sir i watch your every video i have learned a lot thanks sir

@amrinkagzi9207 5 жыл бұрын

Very nice explaination..easily understood...Thank you sir..

@komalyadu7794 3 жыл бұрын

Very sharply explained sir I am understood so easily...thanks

@ramkharasane6219 4 жыл бұрын

Thank you so much sir for knowledge full video.....

@arvindkaushik5081 4 жыл бұрын

Really good #Nitesh ji

@MdArif-dk4ms 2 жыл бұрын

sir really aap bahot achchhe se expalne karte hai chuki mai bahot logo ka video dekhta hu lekin kisi ko comment nahi karta pahli bar mai aap ko kar raha hu q ki aap bahot achchhe se samjhate hai

@NiteshKumarElectrical 2 жыл бұрын

धन्यबाद भाई

@gaur2050 5 жыл бұрын

Sir, This type of practical course will help all Electrical Engineers. I am really keen to meet you personally as today your way of explanation has remembered me about my great college teacher also. Hats off to you sir.....

@NiteshKumarElectrical 5 жыл бұрын

Thanks Gaurav !! For understanding well through my way of explanation. Mee too want to explain Practically with core theory and many electrical engineers are getting benefits. Such comments motivate me to find time out of my busy schedule to make & deliver great content to all.

@SumitKumar-pf9gr 3 жыл бұрын

U really doing a good job... appreciated

@charinath5445 5 жыл бұрын

How the positions (primary) of the CTs to be arranged (P1 & P2) for both the line and neutral CTs?

@MRASIFRAZA1 5 жыл бұрын

Nitesh bhai आपने बहुत अच्छे से बताया है calculation... Keep it up..

@NiteshKumarElectrical 5 жыл бұрын

धन्यवाद आसिफ भाई !!👍😊

@pjosephkumar 5 жыл бұрын

Excellent Bro.. well explained.

@shivamtripathi2210 4 жыл бұрын

Excellent video on REF..Please also make a video on Transformer impedance, its importance and beneficial.

@panchalruchit6741 3 жыл бұрын

Really Help Full for me your teaching skill very Great... Thank you

@NiteshKumarElectrical 3 жыл бұрын

Thanks. !👍

@Alwayslovingdude 2 жыл бұрын

Very well explained..superb 👏

@rameshtripathy5978 5 жыл бұрын

Very good description !

@jhum954 3 жыл бұрын

Sir Mera job jbsepl me lga hai as a testing engineer transmission substation me kya testing hota hai my frasher huu

@sohailjanjua123 2 жыл бұрын

Hi, I like your lecture. Thanks

@Ashokkumar-je7kn 2 жыл бұрын

Good afternoon sir well stitching

@devendraladava793 Жыл бұрын

Nice video..after so many year you cleared my concept about REF.. request to make video for differential protection same also.

@imadullah3619 4 жыл бұрын

Perfect Mr. Nitesh

@deepak1529 5 жыл бұрын

Brilliant sir ji...

@khanindrkaaushik6742 9 ай бұрын

Really good explanation 👍

@rambhoolsingh2754 4 жыл бұрын

Thanks for best knowledge .

@patelsatyam6649 4 жыл бұрын

Great video sir....Thanks for your knowledge sharing

@ZahidHussain-wk1zl 5 жыл бұрын

Well explained... Keep sharing your experiences

@NiteshKumarElectrical 5 жыл бұрын

Thanks !👍

@pitamber8879 5 жыл бұрын

👌👌sir make video on every equipments installed in 400kv substation.

@ambikaraja9656 Жыл бұрын

Superb explanation.

@vijaybhagat4245 4 жыл бұрын

Really very very informative and well explained video Sirji

@NiteshKumarElectrical 4 жыл бұрын

Thank You..!👍💐

@ashishdixit7050 4 жыл бұрын

Nice explanation

@Sarojsandarbh 5 жыл бұрын

Well done Very nice sir....

@akashsenta3601 Жыл бұрын

Respected Sir My trasformer REF protection Neutral CT 5P15 and phase CT PS class At a time near fault REF protection is operated. Can different class CT use for fault feeding operated.

@tufailalam6438 5 жыл бұрын

Sir. If Vsp>2kv..what should be the value of VDR.

@ASHISHSHARMA-gz7yp 2 жыл бұрын

What are the repurcusions of not grounding neutral of Hv side of PTR in star star configuration ptr. As it is tripping line with neutral grounding .

@maroofchoudhary2296 3 жыл бұрын

Very very good explanation

@alhaseef8268 9 ай бұрын

Hi nithish your video is very useful, please advise me as we have stabilising resistor in series with relay and the settings we kept in very low value. When the fault happens how the resistor will allow small current to pass through to the relay. Actually the resistor would have its own resistance to restrict the current. Please advise

@RK20505 5 жыл бұрын

what is the your software used for explanation

@ramrah4734 4 жыл бұрын

Superb explanation sir

@neerajpiplani185 4 жыл бұрын

In one of our substation whenever the 66 kv voltage is on higher side may be greater than 70 kv and if power transformer after maintenance is switched On it trips with REF indication .Could you please explain the reason for same

@ASIFKHAN-ui7jp 3 жыл бұрын

GREAT EXPLANATION THANKS A LOT

@ManojkumarSahoo_electrical 3 жыл бұрын

Sir, How to calculate the power rating (Wattage) of stabilizing Resistor for REF relay.

@rakeshgehlot9590 5 жыл бұрын

Very nice explanation sir thank u

@kapilkanzariya3087 5 жыл бұрын

which class ct used in ref

@salimmalek9992 2 жыл бұрын

Very Good teaching sir

@kulkarnir93 4 жыл бұрын

Great sir.I like ur video.I want to know about Differential & bias current in differential protection. Thanks

@md.uzzalmiah644 4 жыл бұрын

Thank you very much for a good lecture. Please do u have any lecture about NGR in generator? How connected with parallel generator and how does calculated resistance valu? Please give me link about its.

@sunilkumarmishra332 3 жыл бұрын

Very informative video sir. Please make video on Insulation Monitering device & their setting.

@PANKAJKUMAR-kv2eh 5 жыл бұрын

The influence of good teacher can never be erased . Thanks a lot Sir. You are inspiration for many people..

@NiteshKumarElectrical 5 жыл бұрын

Thanks for your feedback ! Such comments really motivate me to make good things for all. I find very less time to make videos due to my job but even though I find time. If people's are getting benefits from my videos then I think so that my labour is successful.

@PANKAJKUMAR-kv2eh 5 жыл бұрын

You deserve it Sir. I am proud to be your youtuber student. Your video helps me to clear my concepts and to gain practical knowledge...You have a done great work for the nation and youths in improving their practical skills. You can easily achieve theoretical knowledge by books but for practical knowledge everyone needs a Tuitor like you...Jai Hind

@NiteshKumarElectrical 5 жыл бұрын

@@PANKAJKUMAR-kv2eh जय हिंद, जय भारत। !!👍

@ksroat6128 4 жыл бұрын

Very good sir

@wasimsharif8242 3 жыл бұрын

Best explanation bro

@yadavparvind6710 Жыл бұрын

Very good video sir..

@realityofworld1786 5 жыл бұрын

Bohot awla sir

@machhivivek4167 3 жыл бұрын

Excellent sir..

@RakeshKumar-bt3nr 4 жыл бұрын

Nice explained !!

@debduttbhattachargee1814 3 жыл бұрын

The current flows in secondary of CT Opposite to primary due to faradays law which will oppose the change in EMF. Please include. Nicely explained.

@sapannayak2368 5 жыл бұрын

Nice explanation brother

@roy6516 3 жыл бұрын

Why ct impedance become low after saturation.. even though current is also low

@sameermd9956 5 жыл бұрын

Excellent sir 👌👌👌

@cookwithkhushboosingh9466 5 жыл бұрын

Wonderful explanation 👍

@powercircuits4013 4 жыл бұрын

Nice

@drsimx3729 5 жыл бұрын

good territorial thanks a lot sir

@Manish-cs9tr 3 жыл бұрын

Super sir......

@subratlipun4083 5 жыл бұрын

Generator olta ghumega ta voltage produce hoga ki nehi.....aur kese

@mksingh0121 5 жыл бұрын

You are so good sir more video

@sandeeptiwari-ti8wt 4 жыл бұрын

good explanation sir make note on differential protection of single phase transformer.

@asheshchatterjee3394 5 жыл бұрын

Sir in case of through fault why not current in the phase CT be in the reverse direction. Because current will flow from supply direction...

@pradeepsingh350 4 жыл бұрын

Very good explanation Sir..kindly make a video on power transformer benifit of star to star windings and other combination...deta to star

@vijaymaurya9070 5 жыл бұрын

Very very nice sir keep it sir

@arabindabehura4181 5 жыл бұрын

Tremendious sir.

@Ajay_4488 5 жыл бұрын

very true and related to the real eg. nice keep it up sirji..can you have any idea of cbct protection with 3 wire inside cbct and N wire outside cbct..and another all 4 wire inside cbct..so how D2EFR1 relay will work..please share your valuable knowledge ..

@mohanguguloth9992 4 жыл бұрын

Bhai a topic kounsa book may study Kiya please suggest me

@souravbose8115 4 жыл бұрын

Sir, ek doubt hai. Why would I1 flow from the load to the fault? Shouldn't the current of B- phase flow directly to earth at the fault and come back through the neutral and not flow through the phase C.T at all ideally? Aur Normal condition me kya hoga? tab to B phase ka C.T full phase current sense karega aur neutral ka c.T ideally koi current sense nehi karega. Tab kyu trip nehi hoga? Please explain as early as possible. I will be grateful.

@tventertainment5827 9 ай бұрын

Drawing k liye kon s software use kiya h apne??

@gaurav1744 4 жыл бұрын

Sir I'm electrical engineering student and want to have internship in relay company like ashida , how do i apply . Please help me out I'm egar to know more about relays