Sir, you have set long time delay timing in 2 s , it means if the current in breaker raise above 1280 amp it should have to trip immediately in 2 secs right?
Dear Hi, 1.In this video, you can see many settings under long delay protections like 0.4,0.5,0.6,0.7,0.8,0.9,0.95,1.0 2. we select 0.4 you can also notice in our video 3. Our breaker current rating is 3200 Ampere, now you have to multiply 0.4 *3200 = 1280 4. Under Long delay time setting you can notice we select 2, selection of 2 means it should trip in 2 seconds 5. Also you can notice, long delay time @6xIr, this means rated current multiply with 6 times. 6 here denotes for starting current which takes 6 times 6. Now our selection is for long delay trip current is 0.4 & trip time is 2, you can notice these two selections in our video also 7. Now we have to calculate 0.4 *3200=1280. Then 1280*6=7680 we will get. At this setting if i inject 7680 ampere means breaker will trip exactly at 2 seconds as we set 8. But i don't have 7680 amper, so i inject 3 times current 3840 that means 1280*3=3840 9. So for 3840 amperes according to trip curve, trip time is 5.5 to 8.0 seconds you can notice in our video also this 10. This clarifies, when fault current more trip time reduces, if fault current is less trip time is more 11. If i inject 7680 amperes CB will trip in 2 seconds according to settings, but i injecting 3840 amperes only so trip time is between 5.5 to 8.0 seconds 12. All these things i have told in in the beginning of this video by 00:51 seconds 13. I hope you understand this clarification 14.If you have any doubt's, comment me as i finds time i will reply your questions Thank You, AK ELECTRIC
Teach Each Other, lift up Each other. Our main aim is, for testing professionals & beginners there should not have any problems in their job for learning. In all our video's, I have explained in very detail about Test Concept, Test procedures, Test Result, Formula and many more. If you like this video, please subscribe, like and share with your friends. I hope you will encourage our efforts. Thank You
Keep doing the great work, this world needs more of it. Everything about this video is simply perfect. Keep posting. Learning so much from your channel. Thank you.
Good morning brother, unga video yellam nalla puriyuthu,but ACB TESTING puriyala, need full explanation about all type testing in the ACB like instantaneous test etc... thank you
Super video sir, also please explain about long time,short time, instantaneous, groind fault purpose in beaker.Primary injection trip test i never seen my life, 6000 amper injection is very much interest ing
Dear Hi, It will be in Manufacturer manual. You can download in internet directly by searching with ACB Model name. In any of our next videos i will upload the graph in detail with test report analyze. Thanks.
Dear Abdul, 1. Normally for Breaker (MCB, MCCB, ACB, VCB) Trip test only possible 2. That is Suppose, For a 100 Ampere Breaker we can inject 2 times or 3 time of that 100 Ampere and test the trip time. 2 times means 200 Ampere and 3 times means 300 Ampere 3. Imagine for Contactor you can check pick up voltage & drop off voltage. That is contactor rated voltage is 120 V DC or AC. For this we can give voltage from zero, once it reaches around 60 to 80 V , Contactor wil pick up, note down that voltage and mention it as pick up voltage. Now for finding drop off voltage, reduce voltage from 80 V to decreasing order, once it reach 30 to 40 V, Contactor will drop off, now note down the voltage and mention it as drop off voltage 4. In contactor, once we start reducing voltage from pick up stage, contactor will reset automatically. This reset concept will be applicable for all relays also. But this auto reset option not available in Breaker whereas only manual reset possible 5. So now come to Breaker, Imagine 100 Amper Breaker. For this you have to find pickup current, so now you have to inject 50 Ampere initially & from that slowly increase current like 60, 70, 80, 90, 100, 110 like that, at certain stage breaker will trip. Note down that time for pick up current. 6. Now if you start decreasing current, breaker will not reset automatically, because breakers were manual reset only. Respective persons have to come and reset it 7. Therefore, For Breaker Only Pickup current possible to check not Drop off current. 8. Most of the clients will not require pickup current. They need only Trip time. In rare case some clients will ask pickup current Thanks, AK ELECTRIC
Sir, you have set long time delay timing in 2 s , it means if the current in breaker raise above 1280 amp it should have to trip immediately in 2 secs right?
Dear Hi,
1.In this video, you can see many settings under long delay protections like 0.4,0.5,0.6,0.7,0.8,0.9,0.95,1.0
2. we select 0.4 you can also notice in our video
3. Our breaker current rating is 3200 Ampere, now you have to multiply 0.4 *3200 = 1280
4. Under Long delay time setting you can notice we select 2, selection of 2 means it should trip in 2 seconds
5. Also you can notice, long delay time @6xIr, this means rated current multiply with 6 times. 6 here denotes for starting current which takes 6 times
6. Now our selection is for long delay trip current is 0.4 & trip time is 2, you can notice these two selections in our video also
7. Now we have to calculate 0.4 *3200=1280. Then 1280*6=7680 we will get. At this setting if i inject 7680 ampere means breaker will trip exactly at 2 seconds as we set
8. But i don't have 7680 amper, so i inject 3 times current 3840 that means 1280*3=3840
9. So for 3840 amperes according to trip curve, trip time is 5.5 to 8.0 seconds you can notice in our video also this
10. This clarifies, when fault current more trip time reduces, if fault current is less trip time is more
11. If i inject 7680 amperes CB will trip in 2 seconds according to settings, but i injecting 3840 amperes only so trip time is between 5.5 to 8.0 seconds
12. All these things i have told in in the beginning of this video by 00:51 seconds
13. I hope you understand this clarification
14.If you have any doubt's, comment me as i finds time i will reply your questions
Thank You,
AK ELECTRIC
@@AKELECTRICPOWER Thank you so much for detailed explanation sir. Really you are very good person.
Thanks, Keep Supporting Our Channel
Teach Each Other, lift up Each other.
Our main aim is, for testing professionals & beginners there should not have any problems in their job for learning.
In all our video's, I have explained in very detail about Test Concept, Test procedures, Test Result, Formula and many more. If you like this video, please subscribe, like and share with your friends.
I hope you will encourage our efforts.
Thank You
Always my support will be there for your channel
Thanks!
Thanks for your contributions!!
Good explosion useful information
Very much useful video, clear explanation, really worth for watching
Glad it was helpful!
Keep doing the great work, this world needs more of it. Everything about this video is simply perfect. Keep posting. Learning so much from your channel. Thank you.
Thanks, Keep Supporting Our Channel
Very much useful video with lot of information
Glad you liked it
Excellent video, your videos were very much useful to me. I really enjoyed all your videos. Very much helpfull for me in my professional works
Great to hear!
Super sir clear explanation and also I saw your reply for viewers questions. Really it is appreciated one Continue your good work
Thanks and welcome
I got recommend from my friend about your channel, really it's worth for me. Thank you Boss your video sharing. Continue your great job
Thanks and welcome
Excellent presentation
Glad you liked it
Good explanation thank you
Thanks
Good morning brother, unga video yellam nalla puriyuthu,but ACB TESTING puriyala, need full explanation about all type testing in the ACB like instantaneous test etc... thank you
Sure, I will Upload more video's about ACB Testings
Super video sir, also please explain about long time,short time, instantaneous, groind fault purpose in beaker.Primary injection trip test i never seen my life, 6000 amper injection is very much interest ing
Sure, Keep Supporting Our Channel
Thanks
Thanks for your contributions!!
Very good video sir, also in english upload the video, also secondary injection trip test video upload
Thanks, Keep supporting our channel!
thank you useful video how to calculate operating time 5.5 sec up to 8 sec
Dear Hi,
It will be in Manufacturer manual. You can download in internet directly by searching with ACB Model name. In any of our next videos i will upload the graph in detail with test report analyze.
Thanks.
ODEN kit setup kaatuna more clear ah irukkum for beginners also
Sure, i will upload soon
Super sir, all test clearly understood, if possible upload trip curve also
Will upload soon
Sir i understand the test. How to do trip test by secondary injection and also how it works. Can you explain it
Sure
Why jumper 6,6,8,9 and can you show the test set connection diagram
Dear Hi,
Its according to Manufacturer recommendations for accurate readings. You can also download manual in internet and verify.
Thanks
What is cost of this ACB testing kit and where to purchase
no idea, its vendor supply to us
Oden kit setup kaatuna ❤❤❤
Sure
Arun anna pick up current how to check it??
Dear Abdul,
1. Normally for Breaker (MCB, MCCB, ACB, VCB) Trip test only possible
2. That is Suppose, For a 100 Ampere Breaker we can inject 2 times or 3 time of that 100 Ampere and test the trip time. 2 times means 200 Ampere and 3 times means 300 Ampere
3. Imagine for Contactor you can check pick up voltage & drop off voltage. That is contactor rated voltage is 120 V DC or AC. For this we can give voltage from zero, once it reaches around 60 to 80 V , Contactor wil pick up, note down that voltage and mention it as pick up voltage. Now for finding drop off voltage, reduce voltage from 80 V to decreasing order, once it reach 30 to 40 V, Contactor will drop off, now note down the voltage and mention it as drop off voltage
4. In contactor, once we start reducing voltage from pick up stage, contactor will reset automatically. This reset concept will be applicable for all relays also. But this auto reset option not available in Breaker whereas only manual reset possible
5. So now come to Breaker, Imagine 100 Amper Breaker. For this you have to find pickup current, so now you have to inject 50 Ampere initially & from that slowly increase current like 60, 70, 80, 90, 100, 110 like that, at certain stage breaker will trip. Note down that time for pick up current.
6. Now if you start decreasing current, breaker will not reset automatically, because breakers were manual reset only. Respective persons have to come and reset it
7. Therefore, For Breaker Only Pickup current possible to check not Drop off current.
8. Most of the clients will not require pickup current. They need only Trip time. In rare case some clients will ask pickup current
Thanks,
AK ELECTRIC