Hi Berani Tech, thank you for your contribution. May I highlight that the impedance ratio should be VTratio/CTratio = (220k/110 )/(1000/1)=2 not 0.45 in this case. As for the calculated zone impedance unit, they should be in Ω not Ω/km. Hope this can be helpful.
sir,how to do the Alstom P442 relay settings calaculations for radial feeder having length and trf percentage impeadence.then how we need to do the settings...pls guide me..thanks
Thank you so much sir.....for sharing your knowledge it's very helpful for those who are starting there career in protection field like me. Sir, small one doubt, Z=CT/VT *100%. So, 1000/220×100% =4.5/100 =0.045 But in video it's 0.45 you taken. Please explain sir??
Hi sir. Have you had any experience in putting wrong impedance value when setting relay protection? In my country don’t have impedance measurement device, so I only get the impedance value from the Digsilent program. Can you explain the best way to me?
Very good explanation sir... But I can't understand how the ct/vt ratios become.. 0.45... it's 1000/220kv/110... It's 0.5 na.. Why -ve sequence is not considered.. plz sir explain
P442 Relay, calculation same for all zone sir, In this relay line impedance given and not mentioned +ve sequence impedance or zero sequence impedance ? Please solve the problem sir.
please see fully without skipping- i have calculated for 100 kM it will be useful for zone2, zone3.. if you see after for zone 1 i have convert to 80 km . so please see step by step
Really, your contribution is matchless. A big salute to you. 🙏
thank you
Thank you sir to contribute towards electrical engineering community
👌👍 more information & case studies required, testing information required
Thanks for the video
Hi Berani Tech, thank you for your contribution. May I highlight that the impedance ratio should be VTratio/CTratio = (220k/110 )/(1000/1)=2 not 0.45 in this case. As for the calculated zone impedance unit, they should be in Ω not Ω/km. Hope this can be helpful.
what you said for ohm is correct. but for impedance ration on this calculation it will CTR/VTR. Thank you for your commands
Awsome well explained sir🤩
Thank you for sharing 🌹
You are so welcome
Super 👍👏
Thank you for the information sir 👍 Very useful 💜💜
Always welcome
Sir it's great 😊
Thanks a lot 😊
Thanks bro always waiting for your video
Hi, thanks for share your knowledge.
pd, there's a mistake in the Z2 (Ph-Ph) R1 calculation: It is 3.62 Ohms, not 3.14 Ohms
welcome
sir plz guide how to draw quadratic curve in omicron using the calculated setting
?????
th-cam.com/video/On5Hm3JkUdQ/w-d-xo.html
Thank you sir , execellent informatiom
You are most welcome
Very good 🙏🙏🙏🙏🙏. Thanks
welcome
Hi dear
How the setting is used for quadralatic characristic relay ??
th-cam.com/video/On5Hm3JkUdQ/w-d-xo.html
th-cam.com/video/585TDCgAki4/w-d-xo.html
Please do make Video for differential & EF protection also.
th-cam.com/video/ZxRpyZqx8Z8/w-d-xo.html
sir,how to do the Alstom P442 relay settings calaculations for radial feeder having length and trf percentage impeadence.then how we need to do the settings...pls guide me..thanks
sorry for relay setting calculation we need to considered more so please get help form consultant
what we will do if there is a transformer between the bus.. and busses have different voltage level
From one transformer end to other transformer we will have same voltage so We can have line differential and for distance we can have zone1 and zone2
awesome... kindly make videos on Micom and Siemens relays setting calculations
okay :)
Bro nice video do send this as a pdf
Thank you very much sir!
Welcome
Thank you sir
Thank you so much sir.....for sharing your knowledge it's very helpful for those who are starting there career in protection field like me.
Sir, small one doubt, Z=CT/VT *100%.
So, 1000/220×100%
=4.5/100
=0.045
But in video it's 0.45 you taken. Please explain sir??
Dear it is actually CT ratio/ VT ratio, CT ratio=1000/1 & VT ratio=220k/100, ok
thanks sir...very nice
Hi sir. Have you had any experience in putting wrong impedance value when setting relay protection? In my country don’t have impedance measurement device, so I only get the impedance value from the Digsilent program. Can you explain the best way to me?
no bro
sir one doubt this calculation is common for all relays
yes common but for relay setting they add more
THANKS THALA
welcome
ye calculation kis relay ke liye h..????
it is common
Very good explanation sir... But I can't understand how the ct/vt ratios become.. 0.45... it's 1000/220kv/110... It's 0.5 na..
Why -ve sequence is not considered.. plz sir explain
this impedance is reffering to secondary , that is mean Zsec=Vsec/Isec = (Vpr/Vt)/(Ip/CTR)= Zprimary* (CTR/Vt)
@@ابواحمد-ت8ع3س Dont clear
@@ابواحمد-ت8ع3س please
micom , siemenc..or any othet
for all to find zone value you can use this method
Good work but you are covering the board.
i will reduce
Hello sir.
May know how to test distance protection by omicron without occ ..
Please share note. Thanks 🙏
soon i will post
Thank you 😊
P442 Relay, calculation same for all zone sir, In this relay line impedance given and not mentioned +ve sequence impedance or zero sequence impedance ? Please solve the problem sir.
dist - 80 km..for zone 1 ..why u take 100 km.length
please see fully without skipping- i have calculated for 100 kM it will be useful for zone2, zone3.. if you see after for zone 1 i have convert to 80 km . so please see step by step
🙄🌏🌎🐸🤔😲
Thank you sir
welcome