CORRECT Relay Setting & Fuse Rating In STAR DELTA STARTER - [Electrical Interview]

Setting of overload relay & also rating of fuse used in star delta starter has been explained through this video in Hindi.
Overload relay is set on basis of PHASE CURRECT & Fuse are used on the basis of LINE CURRENT in STAR DELTA STARTER.
CORRECT Relay Setting & Fuse Rating In STAR DELTA STARTER - [Electrical Interview]
This is a popular electrical interview question. Understanding star delta starter is very important for electrical candidates for job interview.
Concept discussed in this video:
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1. Relay Setting in Star Delta Starter
2. Star Delta Starter relay rating
3. Star Delta Starter Relay Setting - Guide
4. How to do Relay setting
5. Overload relay setting for star delta starter
6. Relay setting in star delta starter
7. Star delta starter overload relay setting
8. Fuse rating in star delta starter
9. Star delta OLR setting
THIS VIDEO IS FOCUSED ON:
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1. STAR DELTA STARTER - interview questions and answers in hindi
2. Electrical engineering interview questions and answers.
3. Electrical PSU interview questions.
4. Industrial electrician interview question.
Welcome to my RUclips channel - " ElectricalTalks". You will be familiarized with conceptual electrical interview questions and answers for jobs and admissions for higher studies in an easy way.
Thank You
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#ElectricalTalks
#StarDeltaStarter

[@AkashMandal-or1jj]

Sir har ak video very informative hota hea ..dusra kiseka video se satisfied nahi milta hea...❤

[@ElectricalTalks]

Ha ha 🤣🤣🤣.
By the way thanks 👍

[@pujade8257]

Nice video. Optain a is correct.

[@user-yn2jm1ce2x]

Line current is the correct option

[@subhransupradhan2153]

It's time to make a video on contactor rating selection for DOL and Star Delta starter

[@ElectricalTalks]

Ok. I will take up this topic.

[@shankarbk7792]

Thank sir

[@ElectricalTalks]

Welcome 😊

[@jibanshome7934]

When OLR is placed before Line Contactor, whole line current passes through its contacts and then enters delta circuit. So its setting is 1.5*line current(6Amp)= 9 amp ie 10amp

[@ElectricalTalks]

This are normally used in industry for practical purpose. You can consider these as thumb rule. But these factors may vary a bit according to application.
Aur dekho aye bhi logical hai... fuse blow out karne se pehle overload relay operate karna chahiye na.
Isliye relay 90% & fuse 150%. Got it???

[@kanakkumardixit1066]

Sir agr star dalta m currents ki setting (phase current × FLC) h
To DOL starter m delta connection m bhi (phase current× FLC) hoga kya

[@ashishswain3567]

sir how to relay selection and range for slip ring induction motor..

[@kamalkumar1888]

Line current ke hisab se setting hoga

[@dharmendrapratap5243]

Line current

[@finder6385]

in star-delta connection when motor run in star, phase current will flow & when motor run in delta, line current will flow.
Please correct if I am wrong.

[@ElectricalTalks]

You are absolutely correct

[@kishoretigga5335]

Star cotional starting current

[@AkashMandal-or1jj]

Sir ..fuse or relay me ..jo 0.9 or 1.5 multiple kar rahe... Yea 0.9 1.5 hea oo kesea aya..?

[@ElectricalTalks]

This is like thumb rule... Normally this multiplying factors are used for practical purpose. But this factors may vary a bit according to application.

[@ZYXYZLF]

PLEASE CLEAR MY QUERY
As You explained the OLR current setting shoul be as per WYE connection. But Motor is going to run on DELTA connection. During the running condition Because of LOW setting range between 3.1 - 3.2 A.
Will it not trip early 🤔?

[@ZYXYZLF]

I mean if motor is continuously running on WYE connection, setting is OK.
But if it is going to RUN on DELTA connection why setting accordingly WYE.

[@ElectricalTalks]

Good question. It will be explained

[@priyaranjanmallick8695]

As usual , you always use the key concept to demonstrate anything , so that answer to your question is line current since the OLR is no more part of the delta loop this way .
My understanding may please be reviewed & acknowledged Sir .

[@ElectricalTalks]

Correct buddy 👍.

[@rajatakumarkabi9314]

Sir Mera opinion he line current but star delta starter me line current me olr setting nahi Kiya jata he

[@ElectricalTalks]

Please share your observation...
then how olr is set?

[@rajatakumarkabi9314]

No idea sir

[@priyaranjanmallick8362]

Sir , One thing is only Pending from Star-Delta Series of Starter which ""Current Rating of all the 3 Contactors" & this may please of course be taken for a dedicated video .
But DG AVR & kilowatts , Amperes drawn by induction motor while being operated at a frequency lower than the rated though VFD : These 2 you had committed a long back to take up which are also pending .

[@ElectricalTalks]

Sorry for the delay brother. It will take little more time. But when this topics will be picked up, you will surely enjoy those.
For now, enjoy & learn these topics. Upcoming topic is DC machines. Regarding this if you have any questions, you may ask.

[@PopTop-ii4ew]

Line current

[@RakeshKumar-mb8iq]

Line current

[@srijapulu]

Line current