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Thread: Is this correct ?

  1. #1
    Join Date
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    Is this correct ?

    Is this correct ?
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    I feel it's not. For one the neutral bond should be no smaller than the largest current carrying conductor As also the secondary should be grounded to XO It might be I'd have to look closer these were secretly taken as well as the 600 volt primary 150kva X former is way oversized for a 480/277 secondary. Am I right or just missing something ?
    Eric
    Last edited by augie47; 11-13-17 at 07:15 PM.

  2. #2
    Join Date
    Jul 2005
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    Tennessee
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    Quote Originally Posted by eshockley70 View Post
    Is this correct ?
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    I feel it's not. For one the neutral bond should be no smaller than the largest current carrying conductor As also the secondary should be grounded to XO It might be I'd have to look closer these were secretly taken as well as the 600 volt primary 150kva X former is way oversized for a 480/277 secondary. Am I right or just missing something ?
    Eric
    Comment only on the highlighted:
    The bond should be based on the size of the current carrying conductor but not the same size.
    At my age, I'm accustomed to restaurants asking me to pay in advance, but now my bank has started sending me their calendar one month at a time.

  3. #3
    Join Date
    Dec 2007
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    NE Nebraska
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    Quote Originally Posted by eshockley70 View Post
    Is this correct ?
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Name:	IMG_2750.jpg 
Views:	138 
Size:	129.1 KB 
ID:	18938Click image for larger version. 

Name:	IMG_2751.jpg 
Views:	134 
Size:	132.4 KB 
ID:	18939Click image for larger version. 

Name:	IMG_2754.jpg 
Views:	127 
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ID:	18940Click image for larger version. 

Name:	IMG_2755.jpg 
Views:	115 
Size:	125.1 KB 
ID:	18941Click image for larger version. 

Name:	IMG_2756.jpg 
Views:	104 
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ID:	18942Click image for larger version. 

Name:	IMG_2757.jpg 
Views:	100 
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ID:	18943
    I feel it's not. For one the neutral bond should be no smaller than the largest current carrying conductor As also the secondary should be grounded to XO It might be I'd have to look closer these were secretly taken as well as the 600 volt primary 150kva X former is way oversized for a 480/277 secondary. Am I right or just missing something ?
    Eric
    What do you mean here. Not enough information given to know what you think may be wrong with that aspect. I will say too much transformer typically doesn't hurt anything in comparison to not enough transformer.

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