Disculpen. En un interruptor ABB T7 con relé SACE PR231/P las bobinas de cierre y apertura pueden conectarse indistintamente en la posicición C1-C2 o tambien puede ser en la posición C11-C12. Gracias
@@michalb1984 so, you ask for the details. Most important: the "cleaning" of the contacts makes them worse. Discolorisation is quite normal. Contact surfaces can be checked with carbon paper imprint. Brushing them makes it shiny to the eye, but on molecular level just removes the plating: silver, nickel, chromium & others alloy that is high temperature, electric arc and oxidizing resistant. It also scratches the surface, reducing contact area. If I remember correct (need to review the vid) they also opened the mechanism cover with the springs charged, which is a hazard due to high stored energy and clearly against the instructions given on paper with each breaker. They also didn't do the most important of all: correctly lubricate the operating mechanism. Omitted operational tests and conductivity measurements before returning to service, nor did they perform a trip unit or at minimum tripping coil test. So that's at least 3 wrong activities, 1 hazardous practice and 4 or 5 omitted diagnostic tests. That's without refreshing my memory, more to follow.
@@michalb1984 absolute minimum is using TT trip test to check that the trip unit's tripping coil & mechanism is functional. Better even to have Ekip T&P and run a full breaker test report with Ekip Connect software. Before servicing, run a breaker lig report, and see if any anomalies are stored in memory. The breaker keeps a log of openings and closings and the currents on which these occur, thus also calculating contact wear. The scratching of the contacts induces a terrible lot of wear that the trip unit can't know, resulting in a loss of credibility for preventive maintenance data. Not doing a trip unit and trip coil test means there's no way to know the breaker will actually work. What if you made a mistake? What if there's a screw loose? Or a forgotten tool? Stuck hairs from your grease brush on a critical place? All possible.
CRC makes about 100 different chemicals. Don't use it. Use what the manufacturer prescribes. And don't do all three stupid mistakes done here: 1. Racking out and later in with open door. Dangerous due to arc risc. Rack until in isolated with door closed. 2. Opening cover with charged spring. Risk of breaking fingers. After Rack out, close & open as prescribed in manufacturer instruction to allow safe working by removing stored energy. He even puts his fingers between main contacts while his master is fiddling at the front, where he might push the close button! 3. Brushing main contacts. This removes alloy coating and ages the contacts. Scratches reduce contact surfaces area. The breaker is worse now than before. 4. Doing any service without first running a health report with ekip t/p and ekip connect 5. Doing service on the breaker with obviously! no level 2 or 3 training as required. 6. Wrong method of lubrication 7. Wrong material for lubrication 8. Putting back into service without trip test And more 😓
@@KARMMAROC Obviously not. They have drawn up their own action plan that looks nice to lay people on video. But in fact, they make about 20 dangerous mistakes and worsen the condition of the breaker, omitting the THREE most important things that should have been done.
@@KARMMAROC found my detailed list of a year ago: It still misses a few points, e.g. Level 2 or L3 maintenance training is obviously not received. These guys shouldn't be working on this breaker at all! Clearly NOT according to good ABB standards and practices: 😢 Let me spell it out: Fault #1: Not using protective clothing (hard-nosed shoes, arc protection, gloves etc) Fault #2: Breaker has been racked-in with excessive force Fault #3: Disconnecting breaker with open door. 😡 This shall be done with closed door, since the door is supposed to contain any arcs. Fault #4: Servicing the breaker with spring charged. Shall ALWAYS be discharged before any service or installation. EVERY mounting instruction starts with: OPEN and DISCHARGED. Danger for hands! Especcialy when 8:40 they remove the cover of the charged spring & trip mechanisms!! This makes me 😡 as well. #5 WD-40 is NOT an approved cleaning agent. Instructions 1SDH000460R0002 chapter 8 mention using dry and clean cloth and only for EXCESSIVE deposits Henkel 273471 or equivalent. #5a Sand paper 😱! Who came up with that idea? #6 7:35 is there debris on the bottom of the arc chamber? No cleaning performed. All WD40 and copper residue increase the risk of arc flash. Fault #7 8:55 - 9:28 and 21:34 Excessive forces used again. 😢 Supposed to be only 3Nm on the coil assembly according to mounting instruction 1SDH000579R0001, and 9Nm on the motor acc to 1SDH000460R0605, read up. Mind you, just last week had to visit a client whose molded case breaker disfunctioned only due to excessive torque on a cover. #8 12:17 I'm quite sure WD-40 not allowed or suggested in there as well! Fault #9 Puts his fingers into the mechanism area while the spring is still charged!!! 😧😧 13:17 and onwards! My stomach turns. Fault #10 Re-greasing with springs charged, not using a brush (can't reach where you have to), the WD-40 removed grease between hinges and other bearing surfaces, since the springs are charged, the forces on these surfaces are active and no grease will replace the washed away... Result: You SEE grease, but the necessary functional mechanisms are NOT LUBRICATED 🥺😢 17:33 FINALLY he discharges the springs, only to test the charging immediately afterwards... Fault #11 Small, non-dangerous mistake: They didn't timely realise the UVR / YU should be removed to allow testing. 😅 Fault #12 20:47 The carbon paper test is OK, but do you see the contacts aren't clean even with WD-40 and cloth? All over the paper there are black marks. Cleaning not succesful? Fault #13 23:42 Put the breaker back in fixed part with the relay cover reversed. It might easily get damaged. Fault #14 23:54 Racking in with OPEN DOOR. This is the most common situation to achieve arc flash. Fault #15 Doesn't check auxiliairy wiring 0,7Nm tightness as per manual. Fault #16 24:13 Closes door and ends work with still a reversed relay cover, and is proud of it! 😅 Fault #17 Ends project without doing a trip test using the PR030/B, Ekip T&P, PR010/T or other trip test equipment. Without a trip test, you can't call the breaker "serviced". Fault #18 Ends project without performing functional tests acc. to 1SDH000460R0002 chapter 8.3.9. Fault #19 Don't see a sticker with service date & signature. Fault #20 Ends project without the motor recharging the breaker (probably aux voltage not switched back on). Falut #21 Video ends with 4 minutes of empty black. Well, that last comment: I'n not a video editor, how would I know`? I'm only a ABB Technical Support Specialist.
Not supposed to be a gap at all, and how do you plan to reach the bottom part of the terminals? This is about the only commendable thing in the whole video.
![NoCap - Maliboo [Official Music Video]](http://i.ytimg.com/vi/FUV7E0QyniU/mqdefault.jpg)
Great job and useful video Bro
Good job
Nice video
nice video, very helpfull to bigneer, post regular like this video
Just read my comments on all the mistakes and dangerous actions done in this video, and think again.
Really suberb brother ✨
Sir, your videos are so helpful...!!!
Read my comments of March 11, 2021 (above)
Greetings from ABB Technical Sales Support Specialist.
Very good..sir ji
Super sir please aur banaiye video
Pls read my comments.
Tnx very useful... One request ess video ko voice bhi dedo information ke sath please
Impressive vedeo, it would be very much better if you could explain for breaker settings, resistance testing also... Thank u very much...
That's where you have your ABB technical support for, can be contacted through (product) websites.
Also kindly make a vedeo for spares fixing in breakers, it will be very ysefull... Thanks.
Good Job!
Thank you brother
Useful for me thanks bro
Read my comments of March 11, 2021 (above)
Greetings from ABB Technical Sales Support Specialist.
Most Welcome 🙂...
Disculpen. En un interruptor ABB T7 con relé SACE PR231/P las bobinas de cierre y apertura pueden conectarse indistintamente en la posicición C1-C2 o tambien puede ser en la posición C11-C12. Gracias
Faltou descarregar a mola de abertura e fechamento no início da manutenção, evite colocar a mão dentro do mecanismo.
Usefull for me.... Thanks sir
Most welcome
Thank you sir
GOOD JOB. THANK YOU
Very good job
Acb mein on button press karne se contact attach hota he or separate?
Experienced ABB engineer estimates, that the breaker actually aged some 3 years by this so-called service.
Will spare you all the rest of the details.
What they did wrong???
@@michalb1984 so, you ask for the details.
Most important: the "cleaning" of the contacts makes them worse. Discolorisation is quite normal. Contact surfaces can be checked with carbon paper imprint. Brushing them makes it shiny to the eye, but on molecular level just removes the plating: silver, nickel, chromium & others alloy that is high temperature, electric arc and oxidizing resistant.
It also scratches the surface, reducing contact area.
If I remember correct (need to review the vid) they also opened the mechanism cover with the springs charged, which is a hazard due to high stored energy and clearly against the instructions given on paper with each breaker. They also didn't do the most important of all: correctly lubricate the operating mechanism. Omitted operational tests and conductivity measurements before returning to service, nor did they perform a trip unit or at minimum tripping coil test.
So that's at least 3 wrong activities, 1 hazardous practice and 4 or 5 omitted diagnostic tests.
That's without refreshing my memory, more to follow.
@@ambassadorkees
Thank You, what do You mean by perform tripping test, how to make this in proper way
@@michalb1984 absolute minimum is using TT trip test to check that the trip unit's tripping coil & mechanism is functional.
Better even to have Ekip T&P and run a full breaker test report with Ekip Connect software.
Before servicing, run a breaker lig report, and see if any anomalies are stored in memory.
The breaker keeps a log of openings and closings and the currents on which these occur, thus also calculating contact wear.
The scratching of the contacts induces a terrible lot of wear that the trip unit can't know, resulting in a loss of credibility for preventive maintenance data.
Not doing a trip unit and trip coil test means there's no way to know the breaker will actually work. What if you made a mistake? What if there's a screw loose? Or a forgotten tool? Stuck hairs from your grease brush on a critical place? All possible.
@@ambassadorkees Thank You very much
What happens when we try to extinguish arc, without weakening the arc or when arc is strong In ckt breaker #ratnadipshinde
VERY GOOD. WHAT TYPE OF LIQUID SPRAY USED FOR CLEANING?
The wrong kind 😂
thanks ,please spare parts list and name of the spare
Don’t use wd40’ use crc that’s safety
CRC makes about 100 different chemicals.
Don't use it.
Use what the manufacturer prescribes.
And don't do all three stupid mistakes done here:
1. Racking out and later in with open door. Dangerous due to arc risc. Rack until in isolated with door closed.
2. Opening cover with charged spring. Risk of breaking fingers. After Rack out, close & open as prescribed in manufacturer instruction to allow safe working by removing stored energy.
He even puts his fingers between main contacts while his master is fiddling at the front, where he might push the close button!
3. Brushing main contacts. This removes alloy coating and ages the contacts. Scratches reduce contact surfaces area. The breaker is worse now than before.
4. Doing any service without first running a health report with ekip t/p and ekip connect
5. Doing service on the breaker with obviously! no level 2 or 3 training as required.
6. Wrong method of lubrication
7. Wrong material for lubrication
8. Putting back into service without trip test
And more 😓
Which type of lubricant Grease used in abb breaker
Thanks bro
Bai WD - 40 ke badle CRC SPRAY keegeya nahi to spark hone ka dar rahta hai.
Don't rubbing main contacts it's heating in full load time in future.
Could you please mention the type of grease?
Moli gress
@@dhanuprp6970 ABB specs: Mobilgrease 28 clay/soap based.
Would Moli work? Better than nothing.
Still can't fathom how total disregard of safety and maintenance instructions there's guys are showing!
indeed but they know what they are doing for real
@@KARMMAROC Obviously not. They have drawn up their own action plan that looks nice to lay people on video. But in fact, they make about 20 dangerous mistakes and worsen the condition of the breaker, omitting the THREE most important things that should have been done.
@@KARMMAROC found my detailed list of a year ago:
It still misses a few points, e.g. Level 2 or L3 maintenance training is obviously not received. These guys shouldn't be working on this breaker at all!
Clearly NOT according to good ABB standards and practices: 😢 Let me spell it out:
Fault #1: Not using protective clothing (hard-nosed shoes, arc protection, gloves etc)
Fault #2: Breaker has been racked-in with excessive force
Fault #3: Disconnecting breaker with open door. 😡 This shall be done with closed door, since the door is supposed to contain any arcs.
Fault #4: Servicing the breaker with spring charged. Shall ALWAYS be discharged before any service or installation.
EVERY mounting instruction starts with: OPEN and DISCHARGED. Danger for hands! Especcialy when 8:40 they remove the cover of the charged spring & trip mechanisms!! This makes me 😡 as well.
#5 WD-40 is NOT an approved cleaning agent. Instructions 1SDH000460R0002 chapter 8 mention using dry and clean cloth and only for EXCESSIVE deposits Henkel 273471 or equivalent.
#5a Sand paper 😱! Who came up with that idea?
#6 7:35 is there debris on the bottom of the arc chamber? No cleaning performed. All WD40 and copper residue increase the risk of arc flash.
Fault #7 8:55 - 9:28 and 21:34 Excessive forces used again. 😢 Supposed to be only 3Nm on the coil assembly according to mounting instruction 1SDH000579R0001, and 9Nm on the motor acc to 1SDH000460R0605, read up. Mind you, just last week had to visit a client whose molded case breaker disfunctioned only due to excessive torque on a cover.
#8 12:17 I'm quite sure WD-40 not allowed or suggested in there as well!
Fault #9 Puts his fingers into the mechanism area while the spring is still charged!!! 😧😧 13:17 and onwards! My stomach turns.
Fault #10 Re-greasing with springs charged, not using a brush (can't reach where you have to), the WD-40 removed grease between hinges and other bearing surfaces, since the springs are charged, the forces on these surfaces are active and no grease will replace the washed away...
Result: You SEE grease, but the necessary functional mechanisms are NOT LUBRICATED 🥺😢
17:33 FINALLY he discharges the springs, only to test the charging immediately afterwards...
Fault #11 Small, non-dangerous mistake: They didn't timely realise the UVR / YU should be removed to allow testing. 😅
Fault #12 20:47 The carbon paper test is OK, but do you see the contacts aren't clean even with WD-40 and cloth? All over the paper there are black marks. Cleaning not succesful?
Fault #13 23:42 Put the breaker back in fixed part with the relay cover reversed. It might easily get damaged.
Fault #14 23:54 Racking in with OPEN DOOR. This is the most common situation to achieve arc flash.
Fault #15 Doesn't check auxiliairy wiring 0,7Nm tightness as per manual.
Fault #16 24:13 Closes door and ends work with still a reversed relay cover, and is proud of it! 😅
Fault #17 Ends project without doing a trip test using the PR030/B, Ekip T&P, PR010/T or other trip test equipment. Without a trip test, you can't call the breaker "serviced".
Fault #18 Ends project without performing functional tests acc. to 1SDH000460R0002 chapter 8.3.9.
Fault #19 Don't see a sticker with service date & signature.
Fault #20 Ends project without the motor recharging the breaker (probably aux voltage not switched back on).
Falut #21 Video ends with 4 minutes of empty black.
Well, that last comment: I'n not a video editor, how would I know`? I'm only a ABB Technical Support Specialist.
Isme arcing n greassing ke alawa r kuch karna rhata h Kya sir ji servicing me
Yeh to.... Basic maintenance hean
Spring charge Motorka carbon brush bhi cheak karna hean..
Electrical contacts can't use gress
could you please share check list ?
Sir ABB ka breaker 10min chalne k bad trip kr ja raha h reasons kya ho skta h plz ans
why is this called air?what does it mean
Can you tell me if transformer power supply offf then why my ACB automatically trip...plz reply me sir...
Very simple: You have an undervoltage trip coil mounted. UVR or YU marked, yellow sticker in this video. If a Schneider breaker, MN coil.
Can you tell us
Which Grease you are using??
Petroleum Jelly u can also use or Glycerin as well.
@@ramgopalpatra9346 Thank you
Mobil clay based grease
what´s the name of the blue paper?
Carbon copy paper
Bhaiya contact k upar wale theat main clossed karne par gap kyo rahta hai
Bhai mj apne sath lga lo plz
No Arc Flash suites. Wait until it explodes.
Kitne dino ke bad ACB ka maintenance karna chahie???
Eatch year
Do u have company in dubai
No ..
Fiberglass display Frist u reverse fixed than changed.not see in video.
Dear sir why using carbon sheets.plz use piller cage. it's standrad air gap check list is there.plz refer.
Not supposed to be a gap at all, and how do you plan to reach the bottom part of the terminals?
This is about the only commendable thing in the whole video.
Spring discharge kar lijiye pahle
THANKS Sunil, first comment I read that addresses at least one of the many dangerous, wrong and questionable actions in this video.
U didn't check with the test kit
It is not a saftey work
wrong maintenance .....dont use emery paper in side the braker moving and fixing contact ..... for cleaning purpose use crc dc26 or oks cleaner
aree bhai gaane kyu daale ho???
Poor post why music is there
U r not electrical engineer.decoz emary sheet not use copper contacts.
Unprofessional work
Bakbash hai
Tumko kitna ata hena kam?
And y ?
@@ajithmammen244 hu is this