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Mark1234567
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Join Date: Jul 2015
Posts: 23

Circuit Breaker Intertrip

09/08/2015 6:01 PM

Dears: Shall the downstream circuit breaker be untertripeam circuit breaker if the upstream curcuit breaker is in open position or just when it is raced out? Tks
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JohnDG
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United Kingdom - Member - Not a New Member Hobbies - Musician - New Member Hobbies - Fishing - New Member

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#1

Re: circuit breaker intertrip

09/08/2015 6:13 PM

Please find a better interpreter (try Google Translate). Your post is not intelligible.

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lyn
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Join Date: Oct 2008
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#2

Re: Circuit Breaker Intertrip

09/08/2015 6:25 PM

Why don't you try it both ways and report back to the forum.

In looking back at your past questions it can only be assumed that you are not competent to work around any voltage higher than 12 V DC.

Good luck.
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Mark1234567
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Posts: 23
#3

Re: Circuit Breaker Intertrip

09/08/2015 7:16 PM

Dears; Shall the downstream circuit breakers be intertriped by the the upstream circuit breaker open position or just racking out position.. I wrote the ex post from a touch screen mobile.. My aplogies shiuld it trouble you.... BTW: LYN IS EXCLUDED FROM SUCH APLOGIES FOR HI UNA PPRECIATED REPLIES..
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lyn
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#4
In reply to #3

Re: Circuit Breaker Intertrip

09/08/2015 7:21 PM

If you have to ask, you are a danger to humanity.

No apology needed.
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Mark1234567
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Join Date: Jul 2015
Posts: 23
#5
In reply to #4

Re: Circuit Breaker Intertrip

09/08/2015 7:35 PM

I will not go to that level of being impolite... It is enough to me to report your offensive posts. Hope you were educated how to interact with others....
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lyn
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#6
In reply to #5

Re: Circuit Breaker Intertrip

09/08/2015 7:48 PM

I was educated to tell the truth.
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Mark1234567
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#8
In reply to #6

Re: Circuit Breaker Intertrip

09/08/2015 8:02 PM

I do not beleive so.. What you offended me with is not the truth.. Then you have no right to search for each one's post and evaluate them... Was better to be taught that staying selient and quite is better if you intend to hurt or offend others... Our parents taught us so and hope you teach it for your family.. That might help other people ove you and you love them as well.. You hurt many people here and you do not know if they take your offensive answers as simple as you hit them on your key board....
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lyn
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#9
In reply to #8

Re: Circuit Breaker Intertrip

09/08/2015 8:07 PM

Good luck.
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RAMConsult
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Engineering Fields - Power Engineering - New Member

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#11
In reply to #8

Re: Circuit Breaker Intertrip

09/08/2015 8:39 PM

When it comes to electricity it's better to be one thousand times cautious than one times dead. Best of luck to you, I see a Darwin award in your future...

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RAMConsult
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#7
In reply to #5

Re: Circuit Breaker Intertrip

09/08/2015 7:56 PM

The real offense is asking a highly technical question and expecting a response without posting any realistic data. I do hope that this was an interview question; if it's not and you're asking while being paid by a client then you're the one being impolite and unethical.

Lyn is protecting you from yourself, and you should thank, not chastise, him. This one of those "If you have to ask, you're not qualified for the job..." type questions, and no one should help you destroy equipment or put lives at risk.

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Mark1234567
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#10
In reply to #7

Re: Circuit Breaker Intertrip

09/08/2015 8:25 PM

None of them is true... Anyway thank you!
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RAMConsult
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#12
In reply to #10

Re: Circuit Breaker Intertrip

09/08/2015 8:48 PM

Then what is the truth? If you're a student trying to understand how this works, that's one thing. If you're someone who is in over his head, that's another. In either case state that up front, show some humility, and you may get a valid response. Demanding things with an attitude of entitlement won't get you very far, not here or anywhere else.

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Original_Macgyver
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#13
In reply to #3

Re: Circuit Breaker Intertrip

09/09/2015 9:57 AM

Your post still makes no sense.

  1. If the upstream breaker is OPEN then there is no voltage to your downstream CB.
  2. If the upstream breaker is OPEN then the downstream CB will be unaffected!

And your last sentence is offensive. You post to an open engineering forum and then when you get an answer or reply that you don't like, you cannot exclude someone for giving you a brutally honest answer.
Oh... BTW.... STOP YELLING!
<unsubscribes>

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67model
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#14

Re: Circuit Breaker Intertrip

09/09/2015 6:04 PM

If a breaker is racked-out, you have opened plug/socket contacts which can only make or break negligible current. There is good reason to remove all loads by tripping downstream breakers - in case the breaker is re-plugged or unplugged while closed.

If a breaker is opened on-load, it may be that re-close will cause a surge to the loads greater than system tolerance. Tripping all downstream breakers could ensure load is re-applied (manually?) step by step.
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Users who posted comments:

67model (1); JohnDG (1); lyn (4); Mark1234567 (4); Original_Macgyver (1); RAMConsult (3)

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