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siegfredo c. tabanag
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Join Date: Feb 2012
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SPDs In Corner Grounded Delta Secondary

09/15/2012 4:25 AM

Pls. tell me why a Surge Protection Device cannot be installed in the feeder of a corner-grounded secondary of a 3 phase, 13.2KV/220V, WYE-DELTA distribution transformer as stated in NEC 2011 Art. 285.3 item 2. Thank you.
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Joshi
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#1

Re: SPDs In Corner Grounded Delta Secondary

09/15/2012 2:03 PM

This is to protect the ground point getting disconnected under SPD.
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TonyS
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#2

Re: SPDs In Corner Grounded Delta Secondary

09/15/2012 2:05 PM

Try Here

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siegfredo c. tabanag
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#3
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Re: SPDs In Corner Grounded Delta Secondary

09/17/2012 1:48 AM

Thank you TonyS
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