अगर 6.6kv brecker trip nahi hota to o fault current REF relay तक jayegahi .....to REF relay LVCB ko trip karega to SEF relay klnhi rahega to bhi calega?
In my power plant SEF protection operated in transformer and outgoing feeder of 11 kv relay not showing any fault only transformer relay show then how to identify from which feeder fault came sir please guide us
![[3D ANIMATION] How Transformers Work and What Parts are Used](http://i.ytimg.com/vi/QV7blq8AxIQ/mqdefault.jpg)
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Bahut badiya sir.. Now I'm completely understand
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Very Nice Explanation !!!
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Nice explanation
Very good, nice explanation, so that very easy to understand.
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Best explanation ever
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Very good Explanation 👍👍
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Very nice explanation. My doubts are cleared on types of EF and their schemes 👍🏻
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12 minities very well explain sir, thanky very help full vidoe
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Better explanation required
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SEF bus section will also trip . Otherwise the same feeder may be fed from other other bus
SEF and derive earth fault sath me le sakte hai?
Aapki videos bahut achi hoti h lekin voice bahut km hoti h
Sorry for that but ab hum ne improve kar diya he.. latest video apko achhi quality sound me sunai degi..
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Nice explanation sir 👍..please make video as to why PTR bushings are shorted with thin wire while doing tandelta test...
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अगर 6.6kv brecker trip nahi hota to o fault current REF relay तक jayegahi .....to REF relay LVCB ko trip karega to SEF relay klnhi rahega to bhi calega?
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HV Star to LV star transformer me REF kaise behave kregi
Please explain SEF relay operation in detail
Sir, you have said 6.6kv as incomer , it’s the outgoing side . Isn’t it?
CT choice kese hoga
10 % of rated means please explain
Please use mic..all video
Sr kindly make a video on difference High differential and low differential protection. How do i decide in protection
Sure
Differencencil ke parameters btaye ji
Agar Delta delta hai toh usme REF protection relay aayegi ki nahin @Gyaan electrical
No nahi ayegi, only star winding me hi aayegi
@@gyaanELECTRICAL ok thanks
SEF mal operated in our substation.what is it's reason
In my power plant SEF protection operated in transformer and outgoing feeder of 11 kv relay not showing any fault only transformer relay show then how to identify from which feeder fault came sir please guide us
Check evens of outgoing feeders relay may be event were trigger or recorded
Aap Gujarat se lag rahe ho...
YES
33/6.6 he to LV or HV kese huva ye to step up transformar he to do no said HV aya ga
We can use only ref, then why differential relay is used?
REF : protect only star winding
Diff: Protect both winding
So to cover delta winding in protection we use both.
Def. M aapne CT ka connection hi galat bataya hai
Explain good good good good good
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Differencencil ke perameter bataye please