Thank you very much this video is very helpful for motor drives
@KEBAmerica3 жыл бұрын
You are welcome
@bishantkumar125895 жыл бұрын
Thank you so much. So useful video and precise
@filippetkovic97433 жыл бұрын
the best explanation ever crazy good thanks sir!
@ManojKumar-jw5ys2 жыл бұрын
thank you sir
@Sarcastix73 жыл бұрын
Super helpful explanation. Thank you
@KEBAmerica3 жыл бұрын
You are welcome!
@midkort3 жыл бұрын
Great job, sir. Thank you.
@Olavotemrazaodenovo4 жыл бұрын
Thank you.
@KEBAmerica4 жыл бұрын
You're welcome!
@Clay3005 жыл бұрын
Makes me want to learn sonar and transmit more data through echos like a transponder frequency
@ovais.akhter4 жыл бұрын
Wow. Amazing skills
@Elecnova2 жыл бұрын
Thanks for the information. Did you face the problem for the resonance ? how to fix this problem?
@rafaelc23674 жыл бұрын
Came for the class, stayed for the teacher
@bishantkumar125895 жыл бұрын
Please make a video on use of Choke in drive ? How it reduces harmonics !!
@KEBAmerica5 жыл бұрын
Good idea, Bishant. We will consider doing a video on this topic in the future. Thanks for the comment!
@GN_lab3 жыл бұрын
Tank you, nice work. But some peapole advise, don't go above 4khz carrier frequency, to avoid damage of motor winding insulation. What do you think about this effect?
@Hambxne5 жыл бұрын
nice background music choice
@manojkale92124 жыл бұрын
Just want to know that is there is disadvantages by using IGBT VFD drive , or any damage to 3 phase as borewell pump.
@prashantpant85015 жыл бұрын
Thanks for the information. I have a question, If we are increasing the switching frequency will it not effect the output voltage ? Since output voltage is rms of the pulses that we get from the switching of IGBTs.
@KEBAmerica5 жыл бұрын
Thanks for your question, As the switching frequency increases, in order to maintain the same RMS output voltage, the pulse width is reduced. This is the function of the pulse width modulation. The amplitude of the voltage pulse, when the output transistor switches on, is the DC bus value of the drive. So this does not change with increased switching frequency. By reducing the pulse width (or on time of the transistor) the RMS voltage can be controlled by the VFD. I hope this helps.
@prashantpant85015 жыл бұрын
@@KEBAmerica Thanks for the reply, yes it helped me understand.
@hamidou51263 жыл бұрын
Hello bro amazing work please I have a problem in my work In the induction machine i did give him a pwm when i implemented the machine didn’t work I give him fm (50*50) carrier and dspace work te 0.001
@KEBAmerica3 жыл бұрын
For technical issues like this it is best to talk to a local KEB representative to troubleshoot. Thanks for using KEB products. Have a good day! www.keb.co.uk/company/company-group
@tomernawan733911 ай бұрын
Hello sir..N is represented what sir?
@SureshBabu-iu8mm3 жыл бұрын
V/f theory is application is there here?
@ramsanjeevanverma5235 Жыл бұрын
How to reduce Harmonics
@doanster5 жыл бұрын
Most impressive backward writing skills!
@georgH5 жыл бұрын
It's mirrored. 1. His watch appears on his "right" arm in the video. Most people wear it on the left. 2. The brand on the shirt is almost always on the left side, yet it appears on his right in the video
@georgH5 жыл бұрын
For some reason it's quite uncanny to watch
@KEBAmerica5 жыл бұрын
Yes, it is mirrored. :)
@AliRaza-tw3re6 жыл бұрын
Can you make the video about the error trouble shooting . error no(E.SEE) keb 6
@KEBAmerica6 жыл бұрын
Hi Ali Raza, can you tell us specifically what is your application? We are in a continual process of making helpful videos for people using KEB products. If you need a specific answer more quickly then please contact us or a KEB location near you. kebblog.com/about/
@qzorn44404 жыл бұрын
Gee, is the vfd tech headed towards a vfd RF-generator-transmitter, radio-motor-receiver, or Tesla-motor-theory?
@raghavendaranj38385 жыл бұрын
why are we multiplying the input voltage with root 2 value
@KEBAmerica5 жыл бұрын
Thanks for your question, @Raghavendaran J Short answer: It's just the relationship between the AC input and DC bus voltage because of the six pulse bridge rectifier used in VFDs. The long answer gets into more electrical engineering/physics theory. You can read our article on our blog for a little more information on the subject: kebblog.com/vfd-switching-frequency/
@bishantkumar125895 жыл бұрын
RAGHAVENDARAN J that's general concept. In ABB, DC vtg is 1.35 times of I/p AC
@Dc_tech3862 жыл бұрын
Ok I see
@deejayobenn1603 ай бұрын
I prefer 196khz switching frequency much better
@yuechen24212 жыл бұрын
what is n?
@KEBAmerica2 жыл бұрын
Mike explains it right in the video here: kzbin.info/www/bejne/Y56QZpVsn7SAidE Also, if you want to know more about PWM you can read the full blog post here: www.kebamerica.com/blog/vfd-switching-frequency/
@shubh70154 жыл бұрын
sorry for the silly question, may i know what 'n' denotes in the harmonics formula?
@KEBAmerica4 жыл бұрын
The "n" in the formula is just a simple way to represent a variable in the equation. We could, theoretically, use any letter, but when actually calculating the harmonics the letter would be replaced by the integers from one to infinity.