Why have the B coil in series with A coil for pre close supervision? Can the B coil be wired with its own positive instead of wiring in series with A coil? What advantage does the wiring in the former way gives us?
The reason for wiring the Pre Close supervision through the A and B coil, is interesting. It is just to have the functionality of checking the A’s coil healthiness while checking for Pre Close Supervision, so that we know even before closing the CB that whether or not the Post close supervision of the TC is going to work or not. (Collected)
Sir ek question h 11kv vcb me CT 2 phase me current same show kr rhi h jabki 3 no. Phase me 10 ghuna Current kam show kr rhi h feeder pr balance current h what is reason?
Nicely described
Thank you
Sir video bhot hi accha tha ,mai kaafi dino say atka hua tha ,es topic pe aaj clear ho gya aapko bhot bhot dhnywaad
Thanku
Fantastic video 👌
Thanku
Great sir
Very good explanation sir.
Thanku
Nice sir please aur video
Thanku
Nice useful video thanks
Sir abhi Jo new SS bante hai to usme bhi yahi technique use hoti hai ya electronic system hota hai?
थैंक यू सर
Best explaination bro . Part 1 and part 2.... hats off.. I have subscribed and liked it...
Thank u bro 😀
@@sarojgarhwal23 do u give training for protection testing?
I will up load somy viedo reagarding the same
Why have the B coil in series with A coil for pre close supervision? Can the B coil be wired with its own positive instead of wiring in series with A coil? What advantage does the wiring in the former way gives us?
The reason for wiring the Pre Close supervision through the A and B coil, is interesting. It is just to have the functionality of checking the A’s coil healthiness while checking for Pre Close Supervision, so that we know even before closing the CB that whether or not the Post close supervision of the TC is going to work or not. (Collected)
@@sujamahmudasad8548 Yes, that was my answer itself. Happy that came back to me :)
Very nice sir... But still confusion the case of brk aux are in NO .. how is the state
ua-cam.com/video/LzozbOYVB18/v-deo.html
First watch this video
Thanks
Sir please make video on logic used in control circuit for Relay
Ok soon I will upload
11 kv semense tch volt drop so trip coil burn problem dc volt drop without squada
Sir SCAD system se past Reding kese nikalte hai tg2 past Reding kese nikalte system se
Archive folder ko run karna parega
Logset kholne ke lye sir
@@a.kkumar8029 achive floder hoga aap k desktop me usme date daal select karna parega
Archive crawler hai sir desktop pe
Good
Sir why do we need two coils if the purpose is to flag? as both coils are connected to the aux, why can't we use only one coil?
I will make one video for answer ur questions.
Drop dc volt in tch circuit
Sir ek question h
11kv vcb me CT 2 phase me current same show kr rhi h jabki 3 no. Phase me 10 ghuna Current kam show kr rhi h feeder pr balance current h what is reason?
CT ka rating check karo wo same hai ki ni 3no phase kaa
Ager same hai to uska core apne glat le liya hai please check core also,😀
@@sarojgarhwal23 sir pahle sab Thik tha hame koe b changing nahi ki h na he mane CT ko touch kiya h CT ratio 300/5 h
Current settings in meter or relay pls chek
Please send ur ct detail
And connection detail and meter detail/relay detail
@@sarojgarhwal23 sir meter or rely ki Kya detail send krni h
Why A & B two relays used in case of preclosing time where as one relay used in case postclosing time.
Both the coil in service one bye one
Please also watch this video
ua-cam.com/video/4xJyve10xbE/v-deo.html
At the time preclose Relay B pick up
At the time postclose Relay A pick up
Am I right?
Yes
In video I have explained
Please explain 11 kv semence tch Circuit wiring diagram
Ok