Interview Question On VFD| What is Variable Frequency Drive | Variable Frequency Drive Working

Queries solved:
1. What is Variable Frequency drive.
2. Variable Frequency drive working.
3. Interview question on VFD.
4. Advantage of Variable frequency drive.
5. VFD working Principle.
6. Speed variation of induction motor.
7. Starting method of induction motor.

[@akshaypawar9218]

Hi Abhishek thanks ...apke vajah se Electrical related concepts jaldi clear hota h...👌🙏

[@electricalwithabhishekjoshi]

Thank you so much Akshay for appreciation..🙏

[@electricalwithabhishekjoshi]

Also watch playlist for videos related to Drawing, Calculation, Motor, Transformer, Power Factor Correction and many more..

[@aviray5877]

Moral of video, Depth technical 30% lengthy explanation 70%💐

[@AkbarAli-wy1ev]

@aviray5877 I'm agree with you

[@surajsutar2846]

This is called perfect explanation great sir. My main dout is why we convert ac to dc and now my dout is clear thank u sir.

[@shreyasshendage7295]

Can u make more question on vfd plz for interview.

[@ashoknaik9411]

Beautifully explained 🇮🇳✌🏻

[@shahlalkhan4402]

Very nice explanation.
Please explain differences between vfds and softstarters. Also explain reasons for selections of vfds and softstarters.

[@sanjeevupadhyay2585]

Very nice explanation

[@bch2780]

If you process need to vary speed of motor, use VFD.

[@harshalbarve9091]

The way you explain things is just brilliant.

[@samvedna22]

Very informative...🙏🙏🙏

[@electricalwithabhishekjoshi]

Thank you..

[@manjujoshi6735]

Well explained..

[@electricalwithabhishekjoshi]

Thank you..

[@chaudharyghulamdastgir3284]

Superb bro

[@surajsutar2846]

Great my important dout is clear thank u so much.

[@brijeshrajbhar8503]

Jo aapne bataya why we change to dc
Wah Maja aa Gaya

[@hamidhussain9306]

Excellent and keep it up bro

[@rishikeshkumar9312]

Thanks sir interview question ka lea

[@electricalwithabhishekjoshi]

Most welcome Rishikesh.

[@anmol_ashu1822]

Superb , point to point answer 🔥🔥🔥🔥

[@gaurav.yadav.97]

Superb senior 👌

[@electricalwithabhishekjoshi]

Thank you Gaurav...

[@alimehboob9387]

Good work bro vfd pr ek full explain with conection video banao

[@electricalwithabhishekjoshi]

Okay Ali..

[@sudhakarrao1523]

Thanks bro, very good explanation

[@vidhyasagarpal6531]

बहुत ही अच्छा सर ।

[@aanandchawhan5100]

Good information

[@anandkariya4132]

Kya VFD ko electric bike me controller ki jagah pe use kar sakte Hai?

[@aniketmore7935]

good and excelllent video but sir vfd industrial use is multiple vfds what reasons

[@tajindersingh4200]

❤..very well explsined

[@naveensingh2519]

Bro we can also change sine wave to desired frequency ..by using cycloconverter as cycloconverter is AC to AC converter at different output frequency....now so why we can't use cycloconverter instead of rectifier and inverter in a drive ?

[@naikyudhi9198]

Wao...nice explain ,thank u sir

[@praful_pawar]

Great sir... make video on PLC automation also

[@RanjeetKumar-zb8yw]

Sir aapne bilkul sahi kaha per me bol Raha hu ki vfd se kitne kw ki motor run kir sakte he

[@ELShahbaazHussain]

Excellent explanation sir 👍

[@vsab786]

Beautiful explanation.

[@sarfarazahmadramdani6216]

Sir kia hum rpm 1500 say ziada bhe kar sakta han ? Thanks

[@electricalwithabhishekjoshi]

Sarfraz, hum motor ka RPM, rated RPM se jyada nahi kar sakte.

[@sarfarazahmadramdani6216]

@@electricalwithabhishekjoshi Thank you sir, from PK

[@electricalwithabhishekjoshi]

Most welcome Sarfraz.

[@romitshirguppi3964]

Yes karsakte h lekin motor na generator ki taraha Kam krne pages with negative slip

[@pranay4216]

AC drive ke I/p per single phase supply dene pr Kitna DC Bus voltage banta hai?

[@user-ke6em6vf5x]

Bhai kia Vfd invetar lagany sy ham ect bill kame kar sakty h.yane bajle ke saving ho sakte h plz

[@divya4418]

Nicely explained.. Thanks 👍😊

[@muzafferali7252]

Sir please V/f in inverter ? Explain

[@muhammadshakeel2399]

Good

[@Ammadsaify1]

40 watt gear motor 60 rpm with brake
Aisi motor ko VFD lagaya ja sakta hai ?

[@vijayshankar3456]

Thanks so much for valuable information

[@phoolsingh3658]

Impressive video.

[@sagarlamba6753]

Nice explanation😊

[@user-fj4vl8wp9p]

Due to high harmonics in our plant VFD and Motor got damage can you suggest any equipment to reduce the harmonic

[@mopasand3980]

Vfd check kaise karenge usske upar ek video banaiye please..

[@anaglokesh7511]

Sir , while stopping IM , we know three breaking methods and as I have a doubt in some applications we use DBR and in some we don't ? and breaking methods changes as per application in drives ?

[@praveenkumar-uu6ht]

Great video sir

[@archive9994]

You’re video is very helpful

[@electricalwithabhishekjoshi]

Thank you Nikola.

[@ajayshippawar277]

@@electricalwithabhishekjoshi sir what is difference between sensitive earth fault and earth fault

[@dileepmore7290]

Very nice explain

[@25-ankushrajbhar7]

kon si waveform ko modify karte hai current,voltage,frequency

[@prashantshinde6827]

Sir please explain about IGBT and test

[@pranavsamant1715]

Thanks sir very helpful

[@nagireddisivaganesh4784]

Thank you Sir
VVVFD ka upar complete video banaye sir please

[@muhammadshehbaz7765]

amazing explanation

[@travelwithsaikumar]

Why motor produces humming sound while using VFD
And
If possible please explain about
Internal parts of a VFD like dc choke and filter etc etc

[@electricalwithabhishekjoshi]

Okay Saikumar..

[@romitshirguppi3964]

Single phasing hua hoga

[@bch2780]

High switching frequency trig IGBT is the cause of sound

[@RajKumar-oq6so]

Sir ji Motor , Generator & Transformer ke Name plate ke upar video banaiye na please 🙏🙏🙏🙏🙏🙏🙏

[@arpitdhiman4021]

Sir , soft starrer & vfd ki comparison per video bneye

[@electricalwithabhishekjoshi]

Okay Arpit..

[@shortlife7562]

Nice bro 👌

[@umargul5644]

Well done sir

[@JojiBIJI]

but i have a question.sir told that,what all changes required that can be done in DC waveform.How this changes are done in DC waveform in order to change the RPM?

[@pullastiswain7286]

Sir my question is VFD ka input and output current same kyun nahin hota he or kya reason he

[@rajibmaji5613]

❤❤❤❤

[@amedhossain6032]

very nice...

[@endlessLove591]

sir vfd kaise select karte hai iska rating kya hai kitne amper leta hai

[@SahajaRythuWoodpressOils]

You explained why VFD , where VFD but you forgot to explain How actually VFD works ?

[@kartarchand9432]

Sher vfd per motor car driving sad wala bearing garm Kyon Hota Hai

[@kranthikumar9685]

Bro, please make a video on power saving in industries .

[@electricalwithabhishekjoshi]

Kranthi, for power consumption one need to do analysis of running load and the requirements of plant. There are not much things to say without doing analysis of System.

[@vasudevpatel4017]

Excellent

[@shamsheralam9572]

VFD me fault kon kon sa hota, reverse speed motor kiun sirf chalta hai

[@saleemkhan-mx9jw]

Thanks for useful and knowgable video sharing.

[@ramkrishnabal1098]

THANKS! Very Good lecture! 🙏

[@hasanarif370]

Sir, make a video on REACTOR.

[@riteshpatil1264]

Why the motor not get burn in case of VFD as frequency is zero at starting? Induction motor is acts as a transformer and if frequency is zero at starting.

[@hitendrakumar8965]

Nice videos

[@muhammadhanif1673]

very good

[@rinkumondal2788]

Metal detector ka video banaye

[@archive9994]

Thank you alot Sir

[@rajuvasava1736]

Sir imcc pe video banaye

[@jnjntynayak1712]

Tq 🙏sir

[@adnanali6020]

Hello sir inverter vfd Kya hai is k bare me please kuch batain

[@tharunjangam8228]

Please explain more briefly regarding why we have to convert ac to dc other than waveform

[@bch2780]

There are many power electronics topology for VFD, Voltage source apply ac to dc store to dc capacitors then inverter to motor

[@naveensingh2519]

Bro we convert in dc only because we have to change the frequency and for changing the frequency we require inverter and inverter requires dc input that's why we change ac to dc first then if feed to inverter and by varing firing angle we change output voltage and frequency to control speed

[@bch2780]

The topology circuit that use mostly nowadays is voltage source that convert AC to DC capacitors then use inverter firing PWM patterns to vary u/f

[@brijeshrajbhar8503]

Good explanation

[@paramount8421]

But sir DC ka frequency zero hota hai to usme ham frequency ko kaise change karte hai, ye nahi samajh me aaya

[@alamsarfaraz2361]

Thank you sir

[@ranjanpal7217]

Good explanation..
Does V/f also remains constant in vector controlled VFD ?
i.e. if a motor which is rated as 460V/60Hz is made to run at 30 Hz, does the voltage still remain 460V ?

[@bch2780]

No, otherwise the motor will have saturated magnetic flux

[@hitendrakumar8965]

Sir aap kon se plant me hai abhi job aap ki

[@AbhishekSharma-hr2wh]

Thank you sir🙏

[@rameshmourya1411]

ब, vfd केवल कितने तक मे आ जाता है ईसके लिए कितने वाट का पैनल लगेगा

[@growelectrical2900]

Can Dc motor not run with help of vfd?

[@electricalwithabhishekjoshi]

VFD is only for AC motors.

[@aswinisahu3848]

Sir vfd me parameter kese set karenge.

[@durveshdichwalkar603]

Lekin dc mei frequency nhe hoti h na then VFD mei dc karne ka concept kya h.

[@sahilkhan-hf1um]

Sir Lekin DC wave from ka frequency to zero hota hai to change kaise krte hain???

[@muzafferali7252]

Good sir sir G main aap ki all videos watch kar na chahta hoin

[@muzafferali7252]

V/f in inverter ? Explain sir G

[@narayanyadav2240]

sir vfd me HD & ND kya hota hai

[@nikhilsreekumar5744]

Sir here we vary the frequency but in DC frequency is zero how we change the frequency in 1500 to 1200 in dc

[@rashikatirpude1928]

Sir vfd with star delta starter explain kariye na

[@harishrawat3557]

Thanks sir mai elevator lain mai hu

[@uzairali6875]

please make a video on "why braking resistor is used in vfd?"

[@bch2780]

Some application, need to reduce speed motor more faster than natural mechanic inertia, during reducing motor action like generator convert mechanic energy back to the heat at braking resistor

[@bhupeshkirve1216]

Advanced level interview video shear sir plz

[@rambaburambabu1466]

Sir DC ki frequency to zero hoti fir kaise frequency Change hoga

[@gunwantkuchewar9763]

Sir VFD OUT PUT NAHI AA RAHA

[@Scheme_Match]

Sir what is difference between u/f and vvc Motor Control principle ..please make video on this

[@bch2780]

U/f only control and keep ratio u/f, vvc have to control flux component and torque component separately

[@aswingopal8617]

Can you please make a video explaining the parameters of a circuit breaker(breaking and making capacity, max fault kA rating) for a ABB or Schneider breaker and how it is calculated.

[@electricalwithabhishekjoshi]

Okay Aswin..

[@sumandhua1871]

Sir make a video ELECTROSTATIC PRECITATOR (E.S.P) WORKING?

[@electricalwithabhishekjoshi]

Okay Suman..

[@sumandhua1871]

@@electricalwithabhishekjoshi thank you sir..

[@electricalwithabhishekjoshi]

Most welcome Suman.

[@akshayeee1]

If frequency is one hz then output voltage in VFD is 16volt why not 415/50=8.3 volt..
Plz explain

[@naveensingh2519]

Bcz frequency and voltage is not linearly related

[@bch2780]

At low frequency the u/f is higher , because the function VFD need to compensate voltage drop at stator resistance of motor