Local Breaker Backup (LBB) | Breaker Failure Relay (50BF)

Local Breaker Backup (LBB) or Breaker Failure Relay (50BF)
Protection Operate for the fault clearance of a system by tripping other circuit breakers when the related circuit breaker fail to operate.

[@anbur9568]

❤extraordinary knowledge sharing..keep post videos busbar protection,differential,ref etc

[@petarsimic2303]

So far best relay protection channel on yt! Thank you for effort you put into videos Barani, We appreciate it!

[@simonbenjamin7917]

I have really enjoyed the video. Especially the LBBP for 1&1/2 Breaker Scheme. it was on point

[@jamieroberts8902]

Lots of examples, very helpful! Thank you 🙏

[@sivananthambalasubramanian1202]

Nice presentation Barani sir. Thanks

[@user-wm5ti1od6r]

Very good nice explanation

[@alishafi9272]

Appreciate your efforts sir. Learned alot.

[@sajivs486]

Thank you so much.

[@mohammednaveedhs4058]

Sir finally you made this video thank you sir another request 3- phase transformer stability and 1-phase transformer stability. In traction sites we are using 1-phase transformer.plz make a video on this

[@kannirajulu]

Thank u for sharing knowledge

[@sandeepramkumar7503]

Thanks sir

[@himanshu2232]

Nice vedio sir.👍👍👍👍👍

[@bikramdas9770]

Thanks

[@gharikrishna2280]

While doing protection checks on down stream relay it's breaker is in already tripped condition any fault operated in the same relay in this scenario is LBB operation will occur in the up stream breaker

[@pratibhaprajapati7984]

thanks

[@Yusup_oke]

Nice bro very clear, how about the sf6 2nd stage logic in GIS bro maybe you can create the video also.

[@sivananthambalasubramanian1202]

09.45 sir, why should the OG 1 send LBB initiation to remote end ss?

[@meghanasr3098]

Sir do the ABB relay protection testing videos

[@dittikatisatish4239]

Hi sir thak you for your valuable videos and im having one doubt in this video in 1and half breaker system you have explained if main breaker fais to trip but my doubt is what if a tie breaker fails to trip then what will be sequence of operation in lbb protection..?

[@SunilSingh-uy2re]

In your video with dual busbar single breaker scheme both of the bus sections are connected via bus coupler. Bus coupler is in ON state but you said breaker of the particular bus section will trip !! How ?