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Power-User
Engineering Fields - Electrical Engineering - New Member

Join Date: Dec 2009
Posts: 247

Check Zone in Bus Protection

08/01/2011 6:14 AM

1. Protection system for 132kV bus (Susi & 2) with backup may be specified for double bus powerhouse substation.

Could sb please explain? Also what is check zone in bus protection?

Regards,

sks

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Guru
Engineering Fields - Power Engineering - New Member

Join Date: May 2007
Location: NYC metropolitan area.
Posts: 3230
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#1

Re: Check Zone in Bus Protection

08/01/2011 9:56 AM

Googling gets you this http://siemens.siprotec.de/download_neu/applications/Line-Prot/7SS60_AP101-checkzone_e.pdf and others... There's a lot of info if you will look for it...

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Power-User
Engineering Fields - Electrical Engineering - New Member

Join Date: Dec 2009
Posts: 247
#2
In reply to #1

Re: Check Zone in Bus Protection

08/02/2011 1:26 AM

It reads - "Selectivity can only be achieved with a correct isolator replica."

what is the meaning of corret isolator replica here?

sks

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