Awesome explanation! One of the best I've seen yet. Maybe you can do a video on overload relay, explanation and how to connect to contactor and start stop station. 👍👍👍
how does the coil stay energized after releasing the green button, i understand that you use a parallel no contact but i don't get how it stays active after a single press, i mean how the current continuous to pass through the contanct mechanically. In my mind releasing the button even with the no contact shouldn't it stop the whole thing?
This is very basic usage of contactor. It energizes as soon as you press the push button. And when it energizes completely and plunger pulls the contacts, then it's auxiliary contacts also change their state. When no is used it change to nc and continue power across coil. This is called holding
can I use contactor to switch 24VDC 100aMP (source 1) OR 24VDC 100aMP (source 2) to a single load which need 24VDC 80AMP. When my source 1 fail to generate 24VDC, the load should automatically switch to source2.
What is the voltage applied for coil to make it electro magnet. 12volts, 24volts? How can we know the same. Is this voltage given saperate from addaptar?
Its mentioned on each contactor. You can have different coil voltages ranges from 24v to 230v ac or dc. Its important you must apply voltage equal to rated coil voltage to make it electromagnet. High voltage will make it burn
24v dc 2no 2nc - 230v ac contactor will work on solar panel dc volt 0to30v. I am taking solar volt as reference to connect 230v ac line 1 and 2 switching function. When solar available line 1 to be connected . If solar not available then line 2 to be connected. My doubt is will this contactor work on solar dc volt.
@@electricallectures okay , few days back , one of the auxiliary contactor coil got burnt, how to avoid these issues of coil burn outs ? is there any predictive method for these kind of problems ?
Not at such. Main source is voltage spikes which damage the coil. Normally in general maintenance of contactor we dont consider the coil . Only overhaul the contacts
Good evening mahra sheikha dubai so i know you when last seven years so i work more years so i ask friendship but you not only not accept me but also you lives dealing with your saudi business man who guy work with bangaladesh guys india govt officers drivers group of india so ifeel more sick of pain of chest and always sick so i say good bye some time you cry few minutes and prayer so that time so its may be come soon i feell. Two sparrows flying on the way one crosses over the sparrows beautiful lady sparrows fly away with new gentle sparrow so real loving first sprrow down from sky so its counting the days of be go down a man sing loudly on the way if the loving animals pets deer couples live live with any one goes death
Wonderful tutorial on contactors. Keep it up
Love it, that’s what I was looking for… JazakAllah khair
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Excellent explanation & demonstration technique.Thanks dear.
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Perfect explaination. Thank you !
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Very well explained sir. Keep the good work going👏💯
Thanks
Great explanation. Keep it up 👍
Perfect explanations
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Really good and easy way of explanation .... Even a lame man can understand.. thanks for the information!
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Very good explanation
Thanks
Well explained video! 👍👍👌👌👏👏
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Nice informative Video 👌👌
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Good video #Power_learning_channel
Perfect explanation Thankyou.
thanks for the content.it so helpfull for me
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thank you for the explanation
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Thank you for a perfect explanation
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Very clear explanation thank you so much
Thanks a lot. Stay tuned and don't forget to subscribe plz
Well explanations thanks alot
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Great explanation!
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Nice explanation sir 👍
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Awesome explanation! One of the best I've seen yet. Maybe you can do a video on overload relay, explanation and how to connect to contactor and start stop station. 👍👍👍
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Well done
Thanks for sharing
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Good explanation👍👍👍
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Aasome sir. Great animation
Excellent video
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good one
MA SHA ALLAH IT IS GROWING DAY BY DAY ... CONGRATULATIONS. 1000 +
Wow ❤ thanks alot sir .
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Thanks for the video =)
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Thanks for sharing it with us
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Good explanation
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Nice to see this
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Thank you so much.
This is great,tell me how many amperes are your contactors,,,
It comes in different current rating ranging up to 2000A
Do you have a video on same topic contactors but with a timer connected with nc and no and maybe a second contactor in the same diagram?
No . R u referring to some sort of starter diagram
I also want an explanation vidio for connections of a timer with a contactor .please
how does the coil stay energized after releasing the green button, i understand that you use a parallel no contact but i don't get how it stays active after a single press, i mean how the current continuous to pass through the contanct mechanically. In my mind releasing the button even with the no contact shouldn't it stop the whole thing?
This is very basic usage of contactor. It energizes as soon as you press the push button. And when it energizes completely and plunger pulls the contacts, then it's auxiliary contacts also change their state. When no is used it change to nc and continue power across coil. This is called holding
Can we connect load carrying circuit to the aux terminals??
Not at all . Check the electrical rating of aux contact. If the load is within current rating of contact then you can do
Well explained
Thanks alot
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What is the purpose of L4 and T4 contacts that are placed instead of contacts 13 and 14?
Nice job
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Wow thanks sir
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Super 💝
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HOW TO SELECT THE SIZING OF CONTACTOR TO DIFFERENT TYPES OF STARTERS &HP OF MOTORS . PLEASE EXPLAIN MODEL CALCUTIONS. ALSO REFERENCE BOOK DETAIL.
Excellent. When we have to use auxiliary contacts?
Thanks.
These contacts are used in control logic . They give the status of contactor on off status.
@@electricallectures Thanks for your kind reply.
Thanks you sir 🙏
by over load u mean relay right?
Yes
Hey please make a reference of such software used to demonstrate the arranged cct. Autocad ......
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Brilliant thank you.
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Super sir
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can I use contactor to switch 24VDC 100aMP (source 1) OR 24VDC 100aMP (source 2) to a single load which need 24VDC 80AMP. When my source 1 fail to generate 24VDC, the load should automatically switch to source2.
Be very careful to switch 24vdc . Bcz contactor rating are for switching AC. There are special DC coils to switch 100Amps
how much the load or amp will be use by the coil?
Very less usually 25w to 100w coil. For 11kv contactor coil is around 220W. So it means less than 1A @220vac
When using 3phase contactor, do I still need a separate 120v circuit to energize the coil ?
Contactor comes in different coil voltage range that depends on control voltage. If it is 120v then u connect phase to neutral across the coil.
❤thanks boss❤
How are they different from Relays?
Watch this
ruclips.net/video/xadtX3rhpFs/видео.html
Aapne jo thumbnail banaya hi
kaise banaye
1 video upload kariye
What is the voltage applied for coil to make it electro magnet. 12volts, 24volts? How can we know the same. Is this voltage given saperate from addaptar?
Its mentioned on each contactor. You can have different coil voltages ranges from 24v to 230v ac or dc. Its important you must apply voltage equal to rated coil voltage to make it electromagnet. High voltage will make it burn
@@electricallectures Thank you.
@@electricallectures I wanted to purchase 24 volts coil contactor. Can you send me a link where can I get one.
24v dc 2no 2nc - 230v ac contactor will work on solar panel dc volt 0to30v.
I am taking solar volt as reference to connect 230v ac line 1 and 2 switching function. When solar available line 1 to be connected . If solar not available then line 2 to be connected. My doubt is will this contactor work on solar dc volt.
Not at all. Solar voltage is higher than rated contactor voltage. And normally for dc voltage you need dc components
so basically is a relay for 3phase load
Yes but at higher ratings
how much the coil resistance sir ?
Normally in ohms. From 100 to 300 phms
@@electricallectures okay , few days back , one of the auxiliary contactor coil got burnt, how to avoid these issues of coil burn outs ? is there any predictive method for these kind of problems ?
Not at such. Main source is voltage spikes which damage the coil. Normally in general maintenance of contactor we dont consider the coil . Only overhaul the contacts
Why don't we give a direct 3 pole switch to the load??
Because the contactor is mainly used to remote switch on and off the load through push buttons. Load switch cannot have this provision
Awesome video.Well explained 👏 .Can you please do more videos on automatic change over switches using contactors and a relay ?
Yes in a very near future. Stay tuned and dont forget to subscribe to
Woow
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God
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Someone asked me why the contactor doesn't trip, when the sine wave is at its zero please answer I will subscribe.
Because of its duration. It's happens so fast that magnetism retain which attracts the plunger.
Can anyone explain how to recognize dc and ac contactor? Someone please help me thanks a lot! 🤝
Dc or ac coil or main terminal voltage
You forgot to add control switch to turn off and on the power
Thanks for the correction
@@electricallectures By the way I hit the like button, cause you are doing a great job anyway
Thanks so much for sharing this knowledge
Telugu lo explain cheyandi అన్న please
Please explain no.nc sir
I still not understand.
Can you tell me which part
Starch concio
Im too stupid even for this.
Why
Im
Good evening mahra sheikha dubai so i know you when last seven years so i work more years so i ask friendship but you not only not accept me but also you lives dealing with your saudi business man who guy work with bangaladesh guys india govt officers drivers group of india so ifeel more sick of pain of chest and always sick so i say good bye some time you cry few minutes and prayer so that time so its may be come soon i feell. Two sparrows flying on the way one crosses over the sparrows beautiful lady sparrows fly away with new gentle sparrow so real loving first sprrow down from sky so its counting the days of be go down a man sing loudly on the way if the loving animals pets deer couples live live with any one goes death
Do not understand the difference between AF09-40-00-13 and AF09-30-00-13. Both have 4 normally open contacts…
One has 3 NO power contacts other has 4 NO . 4NO is normally used for phase reversal purpose
Ur number