MCB breaker - short circuit current & Let through energy class
ฝัง
- เผยแพร่เมื่อ 3 ม.ค. 2019
- The Let through energy class of the MCB circuit breaker capacity is explained in this video. I will also explain the electrical rated short-circuit breaking current capacity ( Icn ) and let-through energy of the MCB (miniature circuit breaker) working in the AC circuit with an example. Prospective short circuit fault current, energy class 3, energy class 2 for C32 MCB, and its thermal energy is also explained.
Then I will explain the current limiting during a short circuit in AC is also explained.
I will further explain what is the short circuit current? and Its mechanical force due to electromagnetic force.
Educational video tutorial on electricity, electrical circuit breaker & electrical engineering 319 by G K Agrawal (Gopal Krishna Agrawal) (person with industrial experience).
• Payback period calcula...
• MCB breaker, Ultimate ...
• Which MCB to buy - Wha...
• MCB - Ultimate & Servi...
• MCB breaker nameplate,...
• High voltage in AC sup...
• Math Puzzles, match st...
• Use of Multimeter - hi...
LinkedIn / g-k-agrawal-09a5743b
Twitter / gkagrawal1955
Blog g-k-agrawal-electrical.blogsp...
WordPress letusshareknowledge.wordpress...
MCB let through energy class and rated short-circuit breaking current capacity explained in the electrical video in English. #GKAgrawal #ElectEnggByDesigner #MCB #ShortCircuit #current #GopalKrishnaAgrawal
www.gkagrawal.com/zener-diode...
Sir ..hope u can uplode more class in english ..i really need ur knowledge..from malaysia..TQ so much
Have you watched my all English version { more than 100 } video?
@@GKAgrawal2 sory sir..my bad..i write without check properly u already make a lot of video..hope u pray for me I can be good wireman..thanks again sir..& pls forgive me
As you are very much interested to learn, so your knowledge will certainly improve day by day.
@@GKAgrawal2 my story is like this..I have diploma in electrical..after i finish my study..i cant find any job with my qualification and work as clerk..after 4 years..this new year i got luck to get back into industries as site supervisor (electrical) in construction industrie..now i need to study again sir..im so desperate how i can start again because i already forgot what i learn but my bos expect me more..even to install mcb i failed (ur first video i watch is difference betwen mcb & rcb) ..u video actually help me alot right now in my situation..i tell u my story to show u im really thanks to u sir..from bottom of my heart..
You can learn even now. Just start reading and learning. After coming back from the office, you should give some time daily to learn (read books and watch electrical videos specially prepared by some experience persons). 40 years back after completing my electrical engineering, I wanted to learn finance. I started reading finance related books and magazines every weak. This I did for 40 years continuously. Now I feel like making videos on finance now. So if you want to learn, nobody can stop you.
Gurudev... Mast explaination hai sir
useful lecture thanks
Comments welcome
Wonderful and easy to understand tutorial. Thanks
Wonderful video! Thank you!
Thank you for thorough explanation of let through energy.
Comment welcome
बहुत अच्छी वीडियो
Very good explanation
many thanks
Thank you 😊 sir
Thank very much Sir
Nice sir
happy new year sir
Thankyou for sharing the knowledge. Which one would you suggest for SSR short circuit protection, FRC fuse or MCB?
Please upload one video related to fuse including physics of fuse interruption.
Can you make a video for utilisation categories
For what kind of applications do we have to install category 3 breaker instead of a category 2 breaker
Sir ocb ACB breaker ki wirring connection batao or load Amps
In my book it says I_cn is rated for fuses with no training of personell, can be used universally. However I_Cu fuses are for instructed personell, industrial or energy installations. *I didnt quite understand how you obtained the numbers I^2 *t from 10kA class 3 = 110 000 . And how come that on Class 3 the I^2C should be as much as possible, but a 2 class fuse should be have I^2t as low as possible. ..... ? the point of the fuse is to break open at the Lowest short or fail to ground with I2 thermal, within 1 hour. And momentary opening 0.1sec of electromagnetic release on I5. the fuse rating is chosen onto the installation. fuse whould open on Lowest and Largest fail currents. within time specs witout destroying the fuse .
Value of I^2*t is not calculated, but it is as per Data sheet and Standards of MCB
Sir
2 MCB WITH SPECIFICATIONS OF
C16 MCB
CLASS 3
BREAKING CAPACITY 10000
&
C16 MCB
CLASS 3
BREAKING CAPACITY 6000
in the above 2 MCB which will trip first?
Pls help me sir...
Watch my video again. Breaking capacity 6000 or 10000 is contact rating. It is not rating of the current sensors, watch video again
@@GKAgrawal2 thank u
Brother, both trip at same time
Sir, how did you get 110000 and 80000 i2t values ?
This is written in IS standard document of MCB. It is same all over world. IS standard document has to be purchased from BIS Bureau of Indian standard.
This data may also rarely available in detail specification of the MCB.
@@GKAgrawal2 Thankyou sir.. i am waiting for your new video...
Sir. I beg to disagree with your initial presentation. 10000 is the maximum ampere rating the breaker can withstand during short circuit without damaging to the CB.
Hindi me bola kry
Thank you sir