357 SHUNT Resistance, Uses and Working Principle, How to Measure Current using Shunt Resistor
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- Опубликовано: 13 сен 2024
- in this video i discussed SHUNT Resistance, Uses and Working Principle, How to Measure Current using Shunt Resistor, why it is used in any circuit,
CORRECTION AT TIME 03:49 The shunt resistance value is 50 milli ohm but in the video i narrated 5 milli ohm.
A very low value Resistor called shunt resistance.it is made of the special material having the low-temperature coefficient of resistance. It is connected in parallel with the ammeter whose range is to be extended. It is connected in series with the load to measure that circuit's current
Nice video 👍👍👍👍
Ramadan mubarik to all your family friends allah give big rewards inshallah very good sharing 👍👍
Same to you
best regards
Wonderful video dear friend!!!
Many thanks and best regards
AwEsOmE 🌹
Super 🌹💫
Great work 👏
8 lk MashaAllah nyc sharing so informative video ☝🏽☝🏽☝🏽 stay blessed always
Very thanful for video. It's very informative ❤️🔥🙂
31 great sharing 👍🙏
nice work dear friend , i like , nice share , stay connected
best regards and special thanks
nice job dear bro thanks for sharing
stay blessed
thanks dear brother
Ramadan Mubarak Haseeb Bhai, very informative and technical vlog as always, thanks for sharing, stay blessed, Imran from KAUP STUDIO
So nice of you
as always, another very informative video.
That's a great explanation , I was luckily ready to take it in, otherwise like most things you don't study they go over your head . Thank you for the simplification.
Always informative videos thanks. A viewer from Morocco
salam and shukria sir,now i know how current sensor works by utilizing shunt resister.
You are welcome
شكرا أستاذ حسيب
great working Dear brother
thanks for sharing
Many many thanks dear sister
Clear and simple as always
Thank u
You are welcome
Lk 86 good job 👍👍👍
thanks a lot. best regards
Useful vedio👌
Thanks for sharing👌👌
Thanks for sharing good knowledge my brother
So nice of you
very good explanation. Thank you very much.
best regards
Nice sharing
Thanks for visiting
very informitive video thanks
Please do a video on how to use micro controllers
your way is very usefull
For the sake of clarity, although it is immaterial to your calculations, the resistance at @3:41(0.05ohms) is 50m ohms and not 5m ohms. Ramadan Mubarak!
thanks a lot for correction.
best regards and special thanks for your valuable feedback
stay blessed
exactly right. it is 50 m Ohm but in saying it was a mistake. i used it 50 m Ohm but now i watched the video again and notice my mistake.
please accept my best regards and humble thanks
Yes. I noticed it as well.
Sir apse bahot sikhne Mila sirf thanks bahot kam hai
Best regards 💞
Salam brother good work my brother thanks for the sharing 🇺🇸🙋🏻♀️
thanks dear sister
Hi, very good explain thank you sir! after this i know how processor, shunt resistor work thank you very much.
Nicely explained... God bless you sir🙌🙌
Thanks and welcome
Very useful information Sir Thanks
thanks a lot. stay blessed
Assalamualaikum Ustad. As with all your presentations, this presentation is great too. I am grateful to you. Allah bless you...
Many many thanks
please accept my best regard
As usual best 👍💯 explanation with full details, thank you for sharing such knowledgeable videos
Masha Allah , well explained !
Thanks a bunch
As always very good explanation. Thank you for sharing your knowledge.
best regards
Thank you so much sir for this knowledgeable video
Most welcome
@@HaseebElectronics sir please ek video inverter airconditioner ki p.c.b me d.c link voltage detection circuit pr bna dijiye details me .
MashAllah bhai
thanks a lot, stay blessed
Nice work
Jazaak Allah khair
🌹👍Maasha’allaah tabaarakallah
Jazaak Allah khair
very informative video.
thanks a lot
Simply excellent! Many thanks for great video. 👍
Many thanks!
As Salam o alaikum sir.good video
Many many thanks
Thanks sir ji.....very useful...
Most welcome
v.v effective video. so nice explain.......
thanks a lot. best regards
Great explained like always.
best regards
Thanks nice explanation sir asalam Aliekum
Most welcome
Your welcome sir
Assalamualaikum dear brother... Ramadan Mubarak. MashaAllah wonderful upload and one of the best tutorial on this topic on youtube. Thanks for sharing your valuable work.... Allah bless you
Wa Alaikum salaam dear sister
Allah bless you and your family
Ramadan Mubaarak
very useful video
thanks a lot. best wishes
It's very nice explained
Best regards
Walikum Salaam Janab Bhai Saab
Thanks a lot bhai
Ma Sha Allah
thanks a lot
I liked the video very much
thanks a lot. best regards
Thank you
Great teacher
best regards and special thanks
جن کو غربت کی وجہ سے ہم شادیوں پر نہیں بلاتے وہ سب سے پہلے ہمارے جنازے میں شریک ہوتے ھیں۔۔
exactly perfect words
Awesome information ❤️
thanks a lot
Lk 35
w salam
bhai
best regards
Thank you so much
You're most welcome
As always I am showing my humble regards to You , waiting for new useful informative technical video, 👍 👌
best regards
Good tiching karte hai 👌👍👍👍👌👌👌
thanks a lot
Thank you sir! Well done! Off subject, what do you do for a career? Or is this just a hobby. Being both is best! I would like to see a video about your shop and yourself. Have a great day! I appreciate all your videos!
Good information
thanks a lot dear
Sir I experienced that with temprature the resistance decrease and the voltage across the shunt resistor also decrease as the current increases. And we can,t accurately measure the current so what is the procedure to accurately measure about 50 amps of current @ 300 voltage.
bravo bella spiegazione good
best regards and special thanks
Thank you sir
thanks a lot
Thank you Sir.
Very very good sir
I want to learn this theory.
thanks a lot
yes brother i am always trying to share theory with practical so that we can build a strong idea by watching theory with practical
Masha allah brother good work
thanks a lot. stay blessed
good explanation
thanks a lot
Too good 👍 bro👌
thanks a lot. best regards
Sir, does lowering the value of shunt resistance increase sensitivity of any measurement?
it is always selected in milli-ohms, if it is selected higher value, it will consume a large amount of supply voltage, so it is always selected as low as possible ohmic value.
for example, at 200 ampere current a 0.01 ohm or 10 milli ohm resistance will drop 2 volt (200 x 0.01= 2 volt) which is enough for a operational amplifier input,
if at same current a 1 ohm resistance so it will (200x 1= 200 volt) so 1 ohm shunt will drop 200 volt, which is a huge amount of voltage, which cannot be used for any control purpose.
so the shunt resistance value is always selected as low as possible to make the circuit stable sensitive
Excelente
Sir inverter AC k circuit k shunt se 4 connection q ja rhe hote hen?? Normally 2 connection chahye hote hen resistance malom karne k liye
Ramadan Mubarak !
Jazaak Allah bhai
Very nice sir
thanks a lot. best regards
Hi , I have battery discharge machine and charge 30A , so +I , -I is connected to head and end of resistor shunt and multimeter is connected parallel ? Because my equipment power main supply is 380 vac and output is going out based on my programming, so how can I determine the voltage from my wires +I and -I ?
How to fine the shunt resistor in a gree inverter main pcb....is it close to the imp?
Thank you l like this presentation,but my question is that.,what is about if motor is an ac motor
in that case we have to use current transducer or current transformer CT
How to calculate shunt resistance from the specification, like 50A/75mV. Thankyou
Excellent
Thank you so much 😀
Sir daikin ke inverter ac me 7D0 code ki smd shunt resistance lagi hai sir is code se resistance ki value kiya hogi
Sir please make video on how to design a programmable rms amp meter using MCU.
Assalamualikum. pls discuss when RL is not possible to determine what will be to do?
Good
best regards
Hello, thankyou for great video. But I want to ask how about if the load is inverter, I mean shunt resistor is between Battery and inverter so it use to meassurement the current of battery. Thankyou so much.
I mean inverter as a load too, sorry for confusing question. Thankyou
nice
it is my pleasure
So XL is not resistance as we know it. it is inductive reactance and is also measured in ohms. When the motor cannot move or difficult to move it is this inductive reactive that reduces. And this inductive reactance is also measured as resistance. My mind sees that if something is not moving or fights to move it means it has more resistance compare the something that can move easily. Experimentally if a motor doesn't move or resist to move, has more load on it etc. it gets hot. It is hard to picture it in my mind.
Then we have impedance, I assume that is different than inductive reactance. And reluctance etc.
So when the error code (over current) comes up on a diagnostic screen, it means the motor is having a hard time moving due to load or internal stress or whatever, or could it be anything?
When I took the bldc motor out of the washing machine along with all the computer and everything. On the user inerface I put it on drain and spin. Since I had no water hooked up to it of course, no drum to spin etc, I figured what is important is that I had the door as closed. The motor ran. I said to myself alright it works. Well, it worked again the next around when I wanted to show off. But then after that it didn't. Error code over current came up. And it never came out of it again. I gave up. I still have the control panel sitting on the shelf and wondering what happened. I don't know if the motor needs to actually turn something, have something to do or the computer will show as if it is not moving or resisting to move which doesn't make sense.
you are absolutely right
actually i try to explain in very simple and lowest level to make it some understandable for a layman technical staff. so explanation of a function in very easy and understandable ways, gives good approach to understand the concept for those people who have poor knowledge
as it is a very deep theory of magnetism in rotary induction devices, provided a summarized view to understand the function of a shunt resistance
when a rotor stuck or faces high friction of any other obstruction, it will cause to increase excessive current flow, so its magnetic filed cancels the input magnetic filed,
because the counter emf causes cancellation of primary flux, it causes to reduce inductive reactance, which causes to draw more current
in very simple words, "excessive resistance in mechanical movement of any rotary motor cause to reduce input resistance, which causes to draw more current than the rated drive parameters"
*please accept my best regards and special thanks for watching my video in detail and a valuable discussion*
@@HaseebElectronics Are you saying that no load on that washing machine motor caused overcurrent error message because that couldn't be the case as all that would mean is the motor easily moves, if anything it would be I guess undercurrent (if it exists). So I am assuming the issue maybe other than that. I should mention that when I turn that round magnetic drum (LG washing machine) by hand the center shaft/bearing has enough wear to cause the magnetic outer drum to be wobbly enough perhaps. Someone gave me the washing machine to play around with and said it wasn't working right.
So I just took it apart and decided to see if that motor will turn on the bench just for fun.
So I guess my question is, would a worn bearing which I assume would cause the field between the rotor and the stator to not be even (the little wobble) would cause overcurrent?
Thanks for all your videos. I watch them over and over and over.
In your case if the control card is applying power to the bldc motor and it is not spinning up, that means that there is some sort of mechanical obstruction in rotation (bearing or misalignment Corrosion etc)
Of there is drive failure
Might be some ipm or igbt may be facing issue or in drive circuit
Over current problem is most of the time from electronics circuitry
@@HaseebElectronics Thank you Haseeb for everything.
Shunt resistance ki value change kar sakte hai tu hor kya change karna padega
Sir please make some Op-amp working related videos
@Haseeb Electronics sir my atx power supply work without pc but when I connect with pc it restarts reputedly. Plz help. Which part would be faulty?
Welcome dear
First verify that the problem is in ATX by installing another power supply to the computer (if pc works good with other power supply)
Then power on defective power supply by connecting green wire with black wire
If it starts normally
Or not
Please reply
If it starts for a while
Then goes off
Check output filter circuit (capacitors and rectifiers and 3.3 regulator)
@@HaseebElectronics yes. I've already done these by watching your videos. My pc is running now by another psu. But my faulty psu works fine without pc. But if connect with mother board pc restart repeatedly. Monitor display goes on and off repeatedly.
In practice shunt resistors for high current requirements have very low values, usually a milliOhm or less. The traditional use of a shunt with a given microammeter needle movement is well understood but not very useful for today's trend toward data acquisition and system electronic monitoring and control. Meaning, the shunt signal will have to be amplified in order to provide an input to instrumentation, and this is where the difficulties begin because of the high gain required, cancellation of common mode noise and influence of thermal emfs.
Great
thanks a lot. best regards
would that work for AC current measurement ?
for ac current measurement, the CT current Transformer is the best solution
@@HaseebElectronics even for high frequency like 300kHz ? can you recommand one to use with my scope please
@@EnergySeeker there are many CT current transformers
or Current probes can be used. it depends on your requirement. please check digikey
www.digikey.com/en/products/filter/current-sense-transformers/163
@@HaseebElectronics am using this one Micsig CP2100A what do you think of that ? at 300kHz would it be accurate ?
Is it the same when an inverter ac error said ac current detect malfunction?
yes
it is exactly the same
there are 2 methods to detect the current in inverter ac
1. resistance in IGBT emitter pin and sensing the voltage using opamp
2. using CT current Transformer in AC input line or in dc rail
Mig Welding Machine Reapair control card ki video banao sir please volt kitni kitni kaha asati hai
okay dear i will try to share soon
good
thanks a lot.
💜💙💚
Thank u for this administration .but electronics move from negative to positive side and the current move from positive side to negative side .
welcome dear
you are right.
in conventional current flow concept, the current flows from +ve to -ve terminal.
but in electronic current flow theory, the flow of current is considered from -ve to +ve. so i discuss electronic current flow. as i spent my life in electronics engineering field and my concept is always from -ve to +ve.
both theories are same, just the arrow direction differs only
please accept my best regards
@@HaseebElectronics I respect u and I'm a good flowering to you thank you for your tremendous work. u will still one of the best teacher for us. Please keep on doing good job. Allah ples u.
@@mamoonalabed8205 الله يسلمك و يسعدك . الله يبارك في عمرك
Aslamo alikum ramzan kareem MN. kareem
wa alaikum salaam
best regards
@ 3:49 it's 0.005 ohms
i am sorry for that, it was mistake. but the concept and method is same
or we can say it is 50 milli Ohm
if you will consider it then i will thankful
best regards
@@HaseebElectronics yes
Hum logon ne F.Sc mein shunt resistance k bary mein prha tha
yes dear
electronics is physics
Jyada video hindi banao sir jaldi samaj mai aa jata hai
meri sabhi videos merey doosrey channel (haseeb electronics urdu) per upload hoti hein
Milliohm is 0.005 when converted to ohm.
I selected 50 milli ohm but while narrating it was mistake
I said 5 milli ohm instead of 50 milli ohm
50 milli ohm is 0.05 ohm
I m sorry for inconvenience
Please accept my best regards
@@HaseebElectronics it’s ok. Beginners would find it confusing. I would suggest you do ‘How to determine a shunt resistor for a load?’.
@@gtag174 I am thankful for your valuable guideline.
I will do it
Stay blessed