DIFFERENTIAL PROTECTION OF TRANSFORMERS || PERCENTAGE BIASED DIFFERENTIAL PROTECTION || DUAL SLOPE
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- Опубликовано: 31 июл 2024
- Speaker information: Pankaj Kumar Jha
Manager, Power Grid Corporation of India Ltd.
(Power System Engineer with more than Ten (10) years of industrial experiences.)
The concepts of differential protection of transformers, percentage biased differential relays, dual slope selections, harmonic restraints and harmonic blockings, effect of tap changers on performance of differential protection relays are explained in detail in this video.
00:00 - Intro and Recap
00:46 - Basic Concepts of Differential Protection.
07:21 - Basic Concepts of Percentage Biased Differential Relay.
12:02 - Considerations for applying Differential Protection.
12:38 - CT Ratio Selection for Differential Protection.
19:40 - Effect of Transformer Connection on Differential Protection.
27-15 - Vectorial and Ratio Correction in Numerical Relays.
29:05 - Effect of Transformer Tap Changer on Differential Protection.
42:25 - Effect of Transformer Magnetizing Current on Differential Protection.
49:34 - Harmonic Blocking in Differential Protection.
56:24 - Harmonic Restraint in Differential Protection.
57:12 - Cross Blocking in Differential Protection.
58:12 - Biased Differential Relay Characteristics.
1:03:24 - Saturation Detection in Differential Relay.
1:07:56 - Steps in Differential Relay Processing.
1:09:09 - Concluding Remarks
Please click on the following link for watching the same video in English:
• DIFFERENTIAL PROTECTIO...
To fully understand the concepts of differential protection of transformers, kindly refer following sessions:
1. WHY CT STAR POINT IS ALWAYS FORMED TOWARDS PROTECTED OBJECT SIDE || PART-2
• CT POLARITY || WHY CT ...
2. Lecture-1: Three Phase Transformer Connection || Phase Shift in Star-Delta Transformer
• Lecture-1: Three Phase...
3. LEC-2: Fault Current Distribution in Delta-Star Transformer | 2-1-1 Current Distribution
• LEC-2: Fault Current D...
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The best lecture on differential protection I have taken so far. Thanks for uploading
Excellent lecture Sir. Thanks 🙏🙏🙏🙏
Excellent video..!!
Very detailed explanation..
Excellent explained.
Very informative❤
Excellent explanation 👌👌👍
Bohot bariya sir
very nice explain and very informative video's keep it up and make videos on RUclips .
Thank you very much
what an easy way to teach
Thank you very much sir
Excellent 👍
Too much helpful sir 🙏🙏
Thank you for watching. If you like the contents then please share the video with your friends.
Thanks sir ji
Legends in your vídeo. Please!
Very Good
Very good sir
Thank you🙏
Thanks for watching
Can you simulate the difference with braking protection of the transformer on matlab/simulink? I need it. including 2 harmonic lock
Are any effect of matching factor in slope of differential relay.
Sir thank you.
Can u make video on relay calibration
amazing explaination
Sir what's highset differential?
There's a term im micom p643 relay- Is-HS1 & Is- HS2
Very nicely explained sir, Can You Pl make Video for Configuration of Micom P643 Differntial relay for 80MVA 220/22KV Power transformer
Thank you Sir.
sir please upload next lecture of this transfromer protection series
I will upload the next session on this series shortly.
What is Is1 and Is2 in differential graph.
Thank you Sir 🙏 Excellent work... please make video on PSD and it's DR Analysis
Sure. I will definitely upload video on this topic.
Plz make one video regarding high impedance and low impedance differential protection.
Great work sir keep it up 👍👍
Thank you for your appreciation... Please keep watching and If you like the contents then do share the video with your friends.
Sir REF relay par ek video
Sir practical sessions of diff protection didn't upload yet
Great sir 👍🏻👍🏻👍🏻👍🏻 please suggest me best book name for primary protection.
👍👍👍
🙏
Thank you
👍🙏
Thank you Ravi
Why we use slop1&2 in Generator and Motor differential sir
Sir how to decide 20,30 per cent of slop
Alstom differential relay video
Great sir. I hv one doubt sir. In differential relay we use slope1 and slope 2 . but in alstom relay we also use high set one and high set 2 though we use slope1 and slope 2. What does it require( high set 1 and high set2)
Whatever I knows,....
generally differential highset setting is 8pu, hence when differential operate current value will be 8pu or more than that, differential relay will trip instantly without waiting to see what is the value of restrain current(Ires).
Sir plz explain IS1 and IS2
Sir ek doubt clear kar dijiye plz. Protection ke case me ct ka star point towards equipment rakhte hai but metering ke case me star point kaise aur kis direction me banate hai plz sir reply jarur dijiyega
Sir kindly provide this PDF . It is very useful for me .
Share your E-mail address.