How starting torque increase by increasing rotor resistance?

How starting torque increase by increasing rotor resistance? | Electrical Interview question

Рет қаралды 65,387

Жыл бұрын

In this video "How does starting torque increase by increasing rotor resistance?" we have discussed Induction motors, their types (squirrel cage and slip-ring ) torque speed characteristics of induction motor, how torque developed in motor, the effect of rotor resistance on torque.
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#induction #motor #torque #electrical

Пікірлер: 84

@jatinsolanki1130 Жыл бұрын

Thanks sir for clearing my doubt. From many days I was having this doubt and no one was able clear my doubt in a easy way but you made it so easy to understand that I will never forget it 🙂

@Mumtazhussain-tt7qw Жыл бұрын

Thank you sir, Aapka video bahut hi usefull hota hai ham jaise electrical engineering students k liye Sir please continue video dalte rahe 😊

@sabahathussain1320 Жыл бұрын

Very good explain .. Very simple... Now no confused... 👍

@hanglajunior07 Жыл бұрын

Thank you Sir.... Valuable for EE students...

@Satendra.maurya 25 күн бұрын

Fantastic sir, by adding external resistance in the slip ring type induction motor can increase the power factor. 😊

@ADARSHSINGH-iq3lu Жыл бұрын

sable alag explanation bhai, or sabse logical but ye bataiye mera doubt ye haiki, hum jab rortor me resistance lagate hai to, rotor me current ko aane se rokte hai, matlab current kum aa raha hai, par torqe ko drive karne k liye current chahiye n???, agar toque badh raha hai matlab load badh raha hai, or agar load badhega tab current apne aap badhega. pr hum resistance laga k current ko rok de rahe hain. or baki jitne youtubers ka video dekh raha hon, wo log keh rahe hai, resistance jyada hone se current kum hoga jisse torque badhega jispe mujhe thoda v vishwas nhi ho raha

@Satendra.maurya 25 күн бұрын

Bro, Actually adding external resistance to increase the torque in the starting condition only not always. So, when motor will run as it's full speed the external resistance will be terminated.😊

@Satendra.maurya 25 күн бұрын

Bro, Actually adding external resistance to increase the torque in the starting condition only not always. So, when motor will run as it's full speed the external resistance will be terminated.😊

@Niteshkumar-wo1jc Жыл бұрын

sir i watching all your video very valuable video , and learn many more Thanks for your efforts.. 🙏🙏😀

@prasanta1997 Жыл бұрын

appreciate your work bro.., keep it up, your explanation is unique

@rahulrojasara6449 6 ай бұрын

Very very nice video. your video helps a lot me and my friends. thank you so much keep it up.👌🏻🤗

@Bhartisen5 Жыл бұрын

Gjbbb sir thankyou so much sir very important information 👈👈❣

@mohammadpathan4668 Жыл бұрын

Very nice and well explained !

@YogendraSingh-dw8mv Жыл бұрын

Very very thank you sir to explain this topic 🙏🙏

@prateeksharma5335 Жыл бұрын

Thank you very much sir . Ek video transducer pe bhi banaye sir. Sir apke wajah se mujhe bahut kuch sikne ko mila . Aap mere liye Great teacher ho.

@maroofalikhan6210 Жыл бұрын

Great....Technical Answer............

@YuvisTechPoint Жыл бұрын

Thanks for sharing such valuable content ☺️

@NOMORErattamaar Жыл бұрын

❤️❤️

@theengineeringmindset0 4 ай бұрын

What a great explanation 😮

@ronitroy8333 Жыл бұрын

Super sir 🙏, thanks for it

@sajidd7222 Жыл бұрын

Knowledge 👍

@ashishvitekar3474 Жыл бұрын

How much power factor increases, that means higher limit. Also only p.f. is sufficient to increase the torque or any other parameter variations required. Thank you very much

@rajkishorepradhan463 Жыл бұрын

Agar hum log external resistance ki nikal de aur uss jaga pe ek drive install karke let ek Crane ki chalaye toh starting torque kaise improve hoga can u explain.

@prakashd8226 Жыл бұрын

Very good tech

@yagnikpansuriya1267 Жыл бұрын

Torque k equation me inversely proportion me R^2 hai uska kya?

@ermohdrizwan423 Жыл бұрын

Very good sir

@nageshji8771 11 ай бұрын

nice explanation cos0==1 multiplying factor!. voltage current in phase or current following closely with voltage will absorb energy faster hence produce more torque, also lesser heating due to copper losses in winding.Heat always weakens magnetic field!. Divert heat to resistance than copper winding!.

@bandiarun8662 8 ай бұрын

Heat always weakens magnetic field??

@MindTreeNexus Жыл бұрын

Tysm ❤️

@WNAZ-WALA 3 ай бұрын

Thanks

@RJ-42 Жыл бұрын

Nice video🥰

@eduall321 Жыл бұрын

Bohot achcha

@realdraxx2142 Жыл бұрын

I have a doubt, If we apply external resistance then it will limit the rotor's current (by ohms law) which will further reduce the torque.🤔

@hamzashaikh7815 9 ай бұрын

Same question?

@bikashchandrabehera182 9 ай бұрын

ohms law work in some condition..

@bandiarun8662 8 ай бұрын

You are right. When we add external resistance rotor current will decrease and power factor will increase till some value of resistance i.e., r2=x2. Untill r2=x2 the decrement of cirrent is less than increase in power factor so total power will increase. But when r2 is increased more than x2 the total power will decrease.

@patelbhavik4466 4 ай бұрын

Final conclusion is resistance increase then torque also increase with rotor sleepring

@Satendra.maurya 25 күн бұрын

Actually adding there external resistance to increase the torque in the starting condition only not always. So, when motor will run as it's full speed the external resistance will be terminated.

@electricaltechnical5961 Жыл бұрын

Nice brother 👍

@parth7450 2 ай бұрын

Hi sir, very nice explanation. I have 1 doubt , Tst ke formula me sX2 ka term to neglect ho jata h aur denominator m sirf R2 rhta h, to R2 to inversely proportional kyu nhi hua torque ko?

@sagaryaduwanshireporterbet2390 Жыл бұрын

Bahut badiya video banate ho janab aap aap printing press machine pr banaye ek video

@NOMORErattamaar Жыл бұрын

Sure, Noted! 😊

@saikatmondal9945 Жыл бұрын

finally I got the answer. thank you.

@NOMORErattamaar Жыл бұрын

😊❤️

@harmanpreet5298 Жыл бұрын

Sir sabhi videos par series wise 1, 2, 3 marking kar dijiye ta Jo step by step knowledge mil sake

@sattysinghsingh7586 Жыл бұрын

Motor ke stater ma iron ke pati keyou hoti hai

@himanshuchouhan7153 Жыл бұрын

Thanks 👍 sir Nich

@TEJASCLASHROYALE Жыл бұрын

Sir in some videos they are saying that as armature current decrease torque increase

@harshthacker8627 Жыл бұрын

Yesterday i was discuss this topic with my frnd... But i don’t understand whole concept and today i found your video... Thanks brother my all doubt are clear now regarding this... 🥸👍

@himanshuchouhan7153 Жыл бұрын

Ek question h sir LT motor me CT ratio se realy ki seeting kese kre

@afreenkhatoon3492 Жыл бұрын

👍👍👍

@gajananthakare9782 Жыл бұрын

Sir ji biot savart law ke upper ek details video banayie n

@adityashaw2228 4 ай бұрын

If we increase the active power total power bhi toh badhega to kaise pf improve hoga

@AmanDeep-ox4ds Жыл бұрын

❤

@jmelectrical13 Жыл бұрын

Neutral aur Earthing short hone pe RCCB trip q ho jati h detail me bataye ???

@soumyadippaul4599 Жыл бұрын

Sir mera ek question hai....rubber or koi v high resistance cheez .... maximum kitna amp current sahen kar sakta hai....

@nageshji8771 5 ай бұрын

galactic cosmic rays attracted to cooler stator windings. Cosmic rays help increase magnetic flux hence torque. Same galactic cosmic rays cool poles, solar cosmic rays heat equator. Both solar and galactic cosmic rays oppose eachother. same reason earth poles have high magnetic field.

@SurajKumar-qv6jf Жыл бұрын

Rotar ka winding wire ka guage kaise low torque or high rpm deti hai?

@neerajkanth173 Жыл бұрын

sir, rotor circuit me resistance add karne se power factor improve hoga but sath hi rotor current I2 decrease hoga. please explain.

@shashikant79 Жыл бұрын

Adding resistance is used only for starting. Later this additional resistance is not applied or removed during normal running.

@bandiarun8662 8 ай бұрын

Product of I2 and powerfactor will increase by adding resistance till r2=x2 because increase in power factor is more than decrease in current

@travelandsharevlogs9650 Жыл бұрын

Sir sm pump and bustor pump double motor k panel ki wiring diagram or connection ki video bna do please 🙏

@TEJASCLASHROYALE Жыл бұрын

Sir rotor current decrease hoga na to torque badhega kya

@mineshrathore1571 3 ай бұрын

But Resistance badhane se current bhi toh decrease hoga n Torque directly proportional current

@ankurpatel3439 Жыл бұрын

Sir, can we increase the power factor by connecting the capacitor instead of Resistance.

@faisalzaman1317 5 ай бұрын

Capacitor takes reactive power bro.... So power factor will be less if we add capacitor or inductor..

@anuragnayak324 Жыл бұрын

If we connect external resistance then are we not wasting electricity in the form of heat?

@bandiarun8662 8 ай бұрын

Yes we are wasting, thats why we have to cutoff the resistance after acceleration period

@nadeemkhan-qf3hu Жыл бұрын

Sir Star_delta starter pe 1 video banae full concept ke sath

@NOMORErattamaar Жыл бұрын

Okay, noted! 😊 Waise ishe video ko bhi check kr sakte hain Yahn bhi thora Start and delta starter par baat ki hai. Which motor draws more current start or delta : kzfaq.info/get/bejne/d7uDodd-0LObnX0.html

@bimalkachhap8824 Жыл бұрын

Sir rpm ke bare me bataiye

@akshaymane9054 Жыл бұрын

Sir आप three phase induction motor topic par pura vedio banao please.

@NOMORErattamaar Жыл бұрын

Ji aste aste har ek concept cover krne ke koshish kar rahe hain different different topic ke form mein, aap motor wali playlist jarur check kijiega already Kafi kuchh discuss kar Liya hai.

@AbhishekVerma-dj7vq Жыл бұрын

Sir question h sir ek baar ye clear ker dijiye ki transmission kitne voltages tak hota h or distribution kitne voltages tsk hota matlab sir hmey kese pta chlega voltage level dek ker ki ye transmission h ya distribution ek video m samja dijiye sir please 🙏🙏🙏🙏

@AbhishekVerma-dj7vq Жыл бұрын

Sir video bna dijiye please 🙏🙏🙏

@saikatmondal9945 Жыл бұрын

😍😍😍😍😘😘😘