Difference between High Impedance & Low Impedance REF Protection(Restricted Earth Fault)हिंदी में।

Video in English language Link
• Difference between Hig...
High Impedance REF Protection explained in Details
• REF (Restricted Earth ...

[@umeshbhagat1625]

Sirji apke videos Hindi mein kafi acche aur jaldi samajh mein ajate hain. Pls keep making such nice knowledgeable videos.

[@NiteshKumarElectrical]

जी जरूर ! धन्यबाद !

[@rakeshkumarrajan4549]

Niteshji आपके समझाने का तरीका बहुत अच्छा है |
*सर आपसे एक बात जाननी है कि R. E. F. Protection, transformer के HV side के Relay panel मे ही क्यो इंस्टॉल किया जाता है |*

[@NiteshKumarElectrical]

HV side ya LV side dono taraf laga sakte hai. Lekin uske liye jaruri hai ki HV & LV dono winding star honi chahiye. Bina neutral ka REF relay sense nahi karega.

[@imadullah3619]

Perfect Mr. Nitesh Kumar

[@niteshkumarniteshkumar7401]

Super hai bhai

[@shazrizvi4343]

Once again awesome 👍 it's engineer Shaz from Pakistan

[@electricaljagat7159]

One of best teaching👍

[@UmarFarooq-kz4ze]

Thank you for uploading such staff
Regards from Pakistan

[@sarmadsaleem5621]

Thank you Nitesh. I really watch your videos regularly and your content is very helpful to understand these complex protection studies. I would like to request to please make videos on Bus Bar protection relays, as very few are experts in this field.

[@debduttbhattachargee1814]

Excellent explanation! Thanks 🙏

[@gopalpillai9190]

Nice information collected and shared. Case Study: In case of large motor 11kv ,star connected , 1.8 mw , while replacing the faulty relay one of the line CT wiring got interchanged. Motor started tripping immediately on over current and unbalance. ABB Rem 620 doesn't have any clue for ct polarity check. can you pl share any details for the same.

[@followurhobby5321]

Sir please ek detailed video zero negative positive phase sequence ka bhi daliye

[@electricaljagat7159]

Thank you very much for this knowledge....

[@dineshmehta3688]

Thanku

[@siddharthalakkakula9475]

Dear Nitesh ji, please make a video on high impedance and low impedance bus bar protection.

[@AnimeArtSpectrum]

Excellent video.......

[@deivaraj7261]

Superb video, thankyou

[@vijaybhagat4245]

Very informative video Sirji

[@rakeshnanda9506]

Thank u sir....nyc explanation

[@surendrakverma555]

Very good. Thanks

[@cookwithkhushboosingh9466]

Wonderful explanation !👍

[@surendrakverma555]

Very good 🙏🙏🙏🙏🙏🙏. Thanks

[@ranjeetratre7076]

Sir ge
220 kv s/s me..
132 kv 160 mva x-mer ya 220kv 160 mva x-mer tripp aa jane ke baad ke process ko bataiye please

[@shazrizvi4343]

Awesome 👍

[@aslamhirehal8315]

Plz make video on Busbar protection.

[@aryastudio28]

Thanks sir ji very nice video

[@deepakrajeghorpade2964]

Best explanation sir...🙏🏻👌

[@ajaykarne5648]

Nice explained nilesh sir, many basic ideas get cleared but request u please make video on high and low impedance differential protection

[@jppatnaik2240]

Wonderful explanation

[@aftabraj1865]

Very helpful...nice explanation

[@mcmeddmc4152]

Hello Mr. Nitesh. Question: how will the currents behave in the healthy phases during earth faults?

[@patakotisrinivas1918]

Nice explanation brother...thanks for such a valuable information...

[@amitpansuriya1453]

Awesome explanation

[@pankajkumarbehera7023]

Good explanation, thank u sir... Y we r using impedance in neutral grounding. Bcz minimize the fault current or any other reason

[@NiteshKumarElectrical]

Yes !

[@electricaltechnologyandind5335]

Yes to limit the fault current. In generally 415 V is solidly earthed. 3.3, 6.6, 11 kv is earthed with NGR or neutral grounding resistor with earth fault current limited to 200 to 400A. This is the general Practice used in industry. EHV like 132, 220 or 400 kV are solidly earthed
#ElectricalTechnologyAndIndustrialPractice

[@satyendrakumargautam1821]

Nice explanation sir. Pls make video on 3phase star Delta realy setting of any motor

[@panditvishal5451]

If In current only going more then phase current then neutral will show minus reading in more then 1 value at this time relay will operate or not

[@Arijit_VU3ICT]

Plz explain Neutral Displacement Relay working ..

[@FarhanKhan-cx4yg]

Thanks 😊 sir
Aj ham is hi par Kam Kar rahe he
Rely tiro Kar raha

[@FarhanKhan-cx4yg]

Ct se rely ki wairing disturb ho hi he
Or me Pakistan se hun
Or me sarkari HUB Dam pumping station men electrical shop me hun or hum bus bar me ct rely or pory switch bord wiring chek Kar rahe he plz sir is me folt k se tres kryn?

[@learnbyshiva725]

Thanks very much sir

[@narendersharma5523]

Plz tell about differential relay also

[@jamallapraveen8474]

Thanks sir but I need bus differential relay how to operated and why use resistance and metrocell

[@rahulbawangade7058]

great video

[@amitb149]

In the other lecture about REF you described that Metrosil (VDR) suppress High Voltage spike that is generated across the NCT during Heavy fault current, but the VDR is not connected in this low impedance scheme whereas during heavy fault current NCT will see high voltage across the sec terminal (same as in high impedance case) .... How is this taken care in Low impedance scheme ? Thanks :)

[@vinodbharti5505]

Sir LBB protection kyu di jati he or ye kese Kaam krti he iske upar ek video bnao sir

[@vikashsaini3195]

Sir please made a video of idmt satting calculation

[@aryastudio28]

Sir ji please relay me CT ration kaise set karte hai par video update karo

[@naveenchaddha2802]

सर जी
कृपया PLCC ETL41 ABB make
के कनेक्शन से संबंधित video बनाए
X301,X302,X303, X 304,X305

[@rakeshnanda9506]

Sir numerical relay...micom...spaj relay ke bare me vdo banaiye....

[@surajkumar-nq5ml]

good

[@sandeepkushwaha4863]

Great sir ji

[@NiteshKumarElectrical]

Thanks Kushwaha ji.👍

[@shazrizvi4343]

Dear can please upload a video on point of wave switching concept. please 🙏

[@harishawesome]

Sir please add working of cbct with detail explanation
Clear concept of cbct working
I.e it is for cable fault or both motor and cable faults

[@lovleshroy599]

Thanks sir 😁

[@kdalwadi]

How to calculate value of stabilizing resistance and metrosil?

[@Shivkumar-qp9wv]

Good sir

[@jagannathsahu6820]

If ngr is added,then is ref acted or not

[@shobhitpatel3864]

Sir ref me bhi 2 zone hote h kya

[@RaviSharma-xi4ly]

Please HT breaker ki control and protection scheme pr video banao 👍

[@mavanihardik441]

Thanks
Most helpful your videos

[@NiteshKumarElectrical]

Thanks Hardik !!

[@sumitmondal548]

Big power utility companies and big industries in developed countries always add stabilising resistor and metrosil varistor with numerical relays like RET 670, Micom 632, SEL 787. There is no example that a numerical REF scheme is excluded with these components.

[@rjshtk]

You need to have Stabilizing resistor in Low Impedance REF circuit too to handle through fault conditions!

[@parveensharma5778]

Sir
Nuetural kse bnta h ? Or star point hmesa zero q hota h..?

[@pankajkumarbehera7023]

Thank you sir appart from this happy new year

[@NiteshKumarElectrical]

Same to You Mr.Pankaj 👍 Thanks.

[@gilbertparas3278]

Oke,oke

[@juhaanable]

Thanks nitesh sir keep it up 👍happy new yr

[@NiteshKumarElectrical]

Same to you aryaan 👍👍

[@gowthama2549]

More useful
More videos uploaded

[@NiteshKumarElectrical]

Thanks !!👍😊

[@DURGESHKUMAR-gi9yv]

Thanks sir

[@NiteshKumarElectrical]

Welcome Durgesh !! 😊😊👍

[@subratdas8164]

happy new year 2019 sir ..

[@NiteshKumarElectrical]

Same to you. Subrat !!👍☺️

[@pikaykarong5620]

Can explain in English, tq

[@muhammadnoufal6121]

Where is the English video