Restricted Earth Fault Protection | Restricted Earth Fault Relay | Hindi

[@electricalwithabhishekjoshi]

Video Dikhne mein agar problem ho rai ho to comment karke bataye.. Kya Video wapas banana chahiye??

[@hirennavadiya147]

No problem.. Ok hey.

[@sudhirskamble]

please make on insta. overcurrent, tcs, lbb and autoreclouser

[@helpelectricals9410]

Sir jee Industries me cable Selection ke bare ma dijhaye..with current Dansity and sqmm and Amp. Or Cable try type and Selection

[@rahulyadav-du9po]

Sir no problem in video. I want to know smthg more..... How is the connection of relay when we use REF for a line? and What is REF non directional stage 1 start or stage 2 start and stage 3 start

[@kaifsaif184]

No sir. Great. Your explanation is awesome

[@QammarabbasKhan-fe3kz]

Your are great sir i am from Pakistan .Even difficult things become easy with your way explaining.

[@niteshchourasia500]

It's is very good Subject sir that you clearlified in very easy way.It support us for in troubleshooting in problem

[@harpreetsinghgrewal643]

Great upload. You explained really well. Next topic: How to choose the CT ratio and C value (C100, C200 etc) so the CT doesn’t saturate during a fault?

[@electricalwithabhishekjoshi]

Video banate hai..

[@badgujarminesh6776]

Ye video dekhkar aaj muze lag raha hai interview me agar muze pucha jaye aur me definitely iska ans kar pauga and mera impression bhi positive rahega..

[@sayonarasheikh6974]

Sir apane bahot achha bataya hai.....I m also electrical engineer....but college me jitana nahi samjha usase kahi jyada ap ne achha smjhaya hai....thank you very much sir🙏🙏🙏 for your efforts....

[@electricalwithabhishekjoshi]

Most welcome..

[@muhammadalimughal3488]

Bilkul samajh agayi bohat shukria .

[@debdutmajumder9939]

Today I read this scheme from the book of JB Gupta, I hardly understood the working principle, but after watching this video, it's crystal clear. Thank you

[@electricalwithabhishekjoshi]

Most welcome...

[@सिर्फसत्य]

Bahut badhiya bhaai..mai b bahut pareshan tha..Books me thoda sa topic de rakha tha but ye to bahut bada aur important topic ha...

[@NarayanVyasElectrical]

Very well explained. Clearly understood function of stabilising resistance. Thanks!

[@MuhammedIrfanMuhammedRamzan]

Well done, bro. I like your presentation very much.

[@karanshah471]

Very important for field engineers! Very well explained. One more point can be added like why in CT secondary current flows opposite concept of P1-P2 ~ S1-S2..so that if it gets reversed in wiring that fault can also be found.

[@sitarampanda5040]

reverse the polarity then will be a fault creat automatically

[@karansbhagat]

You are amazing tutor such a nicely explained. Thank you so much.

[@avantikav13]

Very clera and sound as well as informative, Thanks . Please make a detailed video on transform oil testing and action incase of oil contain danger gas, furan test analysis and action.

[@banajkumarsahu6676]

Sir,You are explained very well

[@muhammadkashif2356]

bohat he Alaaa! Allah pak apko mazeed kameabi dy ameen

[@electricalwithabhishekjoshi]

Shukriya..

[@ANILKUMAR-gu4yc]

Gr8 sir 👍👍🙏, aaj clear ho gaya REF, differential protection ka bi video bunaya

[@MuhammadIsmail-t7q]

Good Explanation and I understand it very well. Good way of teaching. Love from Pakistan.

[@Crickettherepy]

Awasome brother I learnt clearly from this video video is very helpfull thanks for your video

[@gaurav_14329]

kya gazab explain kiya hai🙌🙌🙌

[@jotyrmoychakraborty2284]

Thank you so much. Your explanation is so much great.

[@electricalwithabhishekjoshi]

Most welcome...

[@shailshanshah]

Sir you have explained beautifully. Thanks for sparing time & making such informative video . I have few queries, request to address them . 1. Why this REF protection only use in transformer having capacity equivalent or more than 2.5 MVA? 2. REF protection Relay will be installed in primary side of transformer or secondary side ? Once again thank you very much for this video . 🙏🙏

[@sitarampanda5040]

Ref is primary side also primery and secondary side

[@sivatejakulukuri9612]

Super sir excellent concept given very understandable thanks for making this video sir🙏

[@ajitchauhan5753]

One of the best vedio Abhishek Ji.

[@aydanahir9360]

Thank you Sir I understand all your explanation. Very nice video Sir

[@Adarshvrm23]

in such busy schedule sir you have attented my doubt after cmnt love u sirrrrrrr

[@electricalwithabhishekjoshi]

🙏🙏

[@wajahatsohail2435]

Thanks for such an amazing explanation Sir

[@prakhar5star]

Great explanation sir...thank you so much

[@deepakghorpade8896]

Perfectly getting clear concept sir.....

[@electricaljagat7159]

Mere solar plant me 5mva TRAFO ka REF tripping relay operate hota hai jab outside area (substation) me earth fault hota hai.. restricted area k bahar k faul pe operate nahi hona chahiye na... Stabilizing resister work nahi kar raha kya? Please suggest more....

[@vikashvishvakarma465]

नमस्कार सर् आप बहुत अच्छा से समझाते हैं और समझ में भी आता है सर् एक request थी आप से ड्राइंग कैसे read किया जाता है ओ भी एक part by part सर् समझाए आप की बहुत कृपा होगी हम सब पर

[@electricalwithabhishekjoshi]

Vikash, Drawing wali Playlist dekho.

[@AlishaKhan-ld2qt]

Bahut ache se samjhaya sir

[@SatishYadav-pk5eh]

Dear sir , I'm a big fan of your teaching style ....

[@electricalwithabhishekjoshi]

Thank you Satish..

[@theworldbysinu]

Full package for electrical.,. excellent sir

[@electricalwithabhishekjoshi]

Thank you...

[@abhishekroy1846]

1)Why nct is not getting saturated but phase CTs are getting saturated due to high fault current? 2) What is the zone of protection of lvref and hvref in a 33/11kv substation?

[@MuhammadWaqas-nb6pe]

Due to NGR

[@mohdmustafa82]

Sir.. Kya Restricted earth fault relay ko transformer ke delta connection ke liye use nhi kar sakte...

[@maheshchinvagol7299]

Sir. I would like to know the ceiling fan rotates in anticlock wise direction. And blades are skewed in such a way that air comes downward. If it make direction clockwise blade will be made skewed opposite of anticlockwise . Is it work. Why you make direction only in anticlock why not clockwise. But tables fans were in clock wise. Please explain sir. I am awaiting

[@abinashsahu2192]

Very important information sir Thank you

[@mkmkm4408]

Abhishekji, beautifully explained. Can you just add, what will be the scenario if the transformer winding is delta connected?How the CTs will be connected?

[@pankajsinghbora880]

Sirji.....Earthing and neutral ka RYB k sath sequence kya hota h.... Transmission nd distribution line m

[@viewjankari]

Jab resistriced zone ke andar fault hota hai, tab bhi current I2 lowest resistance path kyun nahi karta? Kya tab stabilizing resistance series mein nahi hota hai?

[@rahamgul1702]

yes same question arised in my mind

[@khankakar0121]

Thankx buht kuch sekha ap say sir

[@electricalwithabhishekjoshi]

Most welcome.. 👍

[@subhashelect]

Very Good Explain..very nicely ..I have one queation Line CT and Neutral CT SHOULD BE ONE POINT EARTH OR SEPERATE EARTH..

[@sanandachhatria6465]

so simple teaching sir I could easily understand

[@souvikduttaroy2241]

Best explanation ever ❤🎉

[@NandlalSingh-l4z]

Sir aapki samjhane ka yahi tarika chahta tha ❤🙏

[@Sailor1864]

Very Nice Explain And More Knowledgebal vedio Sir 👍👍

[@सिर्फसत्य]

Mera ek question hai ki Books me likha ki differential relay ko jab transformer (delta star) k protection me lagate h to CT delta side star me aur star side delta me connect hota h..but actually Maine power transformer (delta star) me dekha h ki star side CT ko bhi star connected kar rakha h...aisa kyun karte h? Aur kon sahi h books ya practically.

[@RohitKumar-kr3du]

Without any fault occurence, what is the direction of secondary current in the line CT

[@pankajvaja1299]

Very helpful for understanding sir

[@pratishpatil1218]

Great knowledge sir really apriciate

[@sajidmahmood7351]

Very Nice, and Breif explanation..Thanks

[@electricalwithabhishekjoshi]

Most welcome Sajid..

[@jagdeepsingh-kf5qp]

Sir please yeh baat clear krna k CT k secondary me current direction opposite kyo hota hai kis law k according. Aur ye sarbhi secondary core me hota hai??

[@bhuwneshwarsahu2390]

Bahut achhe se samajh me aaya sir 🙏🙏

[@electricalwithabhishekjoshi]

Thank you Bhuwneshwar..

[@praveenulloju9662]

Really Explained very well Thankyou

[@prasun_mandal97]

Explained very well sir. 😊

[@ajitroy1990]

Beautiful explained.mai Aaj tak samajh nahi pay tha ye concept but now I feel confident.lekin sir ek question puchhna Chahta hu .apne kaha jab fault hota hai to fault current k opposite CT ka secondary current flow karta hai. Kya normal condition me jab sab kuchh sahi chal raha ho to CT k secondary ka current flow kiss direction me rehta hai.pls sir ye bataiye.kyunki Maine book me padha tha normal condition me CT k secondary aur primary me 90 degree ka difference hota hai thora confused hu.pls clear kar dijiye sir

[@chapsytapsy]

in normal condition also CT secondary current is 180 degree to primary current. Lenz law

[@sureshkarunakaran8500]

Excellent explanation sir.thank you

[@manubtek]

Well explained. Thank you

[@faridkhan-mf5xg]

minimum kitna load ho phr hamy cT lagani hoge.kia hm single phase meter per CT laga sakty hai?sir plz guide kare

[@subhashelect]

Very Good Explanation ..pls let us know the CT Sceondary Grounding will se sepearately line ct secondary and neutral CTSeconday seperate Grounding..

[@ElectricalEngineer106]

Amazing video, your videos are very helpful in my internship ❤️❤️❤️

[@electricalwithabhishekjoshi]

Thank you...

[@sitarampanda5040]

@@electricalwithabhishekjoshi sir please help .mere ko ek book chahiye jisme sab kuchh hoga please bataye

[@electricalwithabhishekjoshi]

Kaunse topic pe book chahiye?

[@sitarampanda5040]

@@electricalwithabhishekjoshi testing commissioning and relay

[@nabanitakundu8506]

Sir beautifully explained. Could u pls tell us about high impedance and low impedance REF

[@RajeshRaj-rp5ht]

Wonderful explanation good knowledge

[@rajeshjadhav00]

Very informative video ... 👌🙏

[@simplifyelectricity604]

Sir nice explanation. Dear sir i think stabilizing resistance will be in opposite side of the relay.

[@TheMasterShow-TMS]

Amazing Explanation 🎉

[@naushadmohammad2784]

Iske jagah pe efr use kr sakte hain kya with 4 ct

[@abdulroufashraf4065]

thanks dear , you have explained well

[@electricalwithabhishekjoshi]

Most welcome...

[@anupsingh8936]

Sir...you are doing very great job for us in simple language to make us understand.. I hav bit confusion if fault occur outside then current will also come through stabling resistor in relay or will follow other path to NCT...kindly clear my doubt..🙏

[@GhulamMurtaza-xg5hc]

Thanks sir from Pakistan

[@electricalwithabhishekjoshi]

Most welcome..

[@tanyadutta2871]

Sir when fault occur outside the restricted area, u said magnitude r same so resultant current is zero but stability resister affect one side of magnitude ,then might be chance of energies of ref. (Plz clear sir) Also make a video on when to use metrosil? And its calculation ?

[@sayantanpaul4766]

Precisely explained 👌👌

[@naushadmohammad2784]

Sir CT Ka p1 P2 direction kidhar hoga or CT agar 2500A Hain to CT ratio ,class,VA kon SA rakhna padega.

[@yagnikpansuriya1267]

Bahut badhiya!!!

[@spps1892]

Very nicely explained

[@roopeshyadavendra9993]

Sir synchronising pe bi video dalo with drawing ki kaise konsi pt use hoti hai or kaise bus ka selection hotha hai

[@007mohiuddin]

Verywell explained.....

[@ranjankumarmahala813]

Very good explanation, and one more request that pls classify internal and external faults and describe it's protections.

[@sivakrishna-rq8rq]

Good explanation, great bro

[@salimmalek9992]

Excellent lucture Sir very good

[@electricalwithabhishekjoshi]

Thank you...

[@amitprasad2588]

Superb sir... Ecxelent

[@tradersadda3345]

Sir ,in normal condition 3 phase ct seconary current also flow which can flow through the earth fault meater and trip the circuit

[@hpvide]

Very well explained

[@vikrambhuva2526]

Sir jub line ct saturate ho jata he tab current ct se hote huye resistance ke through relay me kyo nahi jata jab ki pehle case me neglect hote samay to vaha se flow ho rha tha ?

[@anshraj7862]

AMAZING.... PLEASE MAKE VIDEO ON CT SATURATION........

[@shafiullah8128]

Super video as usual

[@moridivyesh9444]

Extremely superb sir

[@anandbhoj4714]

Ye current ki direction CT ki secondary me opposite ku hoti hai.. primary ke direction ke comparison me

[@somikbandyopadhyay5920]

Greatly explained

[@sachchidanandpandey1881]

Very good explanation

[@Indiabhanu]

Great explanation

[@bharatbaldha1759]

Very good explain

[@किरणपवार-च9श]

Great explained sir...

[@yog6801]

Hi Abhishek Ji Plz make a video on Back Up Impedance protection of Alternator

[@electricalwithabhishekjoshi]

Okay Yogendra..

[@yog6801]

@@electricalwithabhishekjoshi Thanks for your quick response Sir Your explanation is very impressive Please make a video on Alternator testing like PD Test Elcid test Tan delta test And on Complete protection of Alternator...

[@DavidMARs16]

sir ap ki videos best hy.. but es video mai samaj ni araha k fault kesay ground say ho kar ja raha hy neutral mai. or CT mai secondary current kaha say araha hy

[@MrRaj-un3zy]

Sir TB ke bareme kuchh bataye aur, iske jyese aur device kebareme bhi bataye...

[@nachiketsuratia9179]

thanks sir very well explained.

[@viveksingh3989]

Sir ji In case of high currents of external faults, only phase CT is getting saturated, not Neutral CT. Why so? And in case of internal earth faults, why neutral ct is not getting saturated, tgough the cirrent intensity lies similar to case of external faults... Please help sir ji

[@electricalwithabhishekjoshi]

Saturation of CT is a rare event bcoz we use PS class CT.

[@snnmurtay7925]

In normal working condition what is the current flow direction in current transformer