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javadkv
Active Contributor

Join Date: Jul 2011
Posts: 13

Busbar Protection

07/26/2011 5:34 AM

what is bus zone and check zone in bus bar protection?
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Pathfinder Tags: busbar protection
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MJ Jordaan
Active Contributor

Join Date: Jul 2011
Posts: 13
#2

Re: Busbar Protection

07/26/2011 4:46 PM

Hi

When you protect your busbar you actully have the following circuits in your panel

1. Zone 1 protection

2. Zone 2 protection

3. Check zone protection

This is for configaration of two busbars....

Whenever a fault occurs on your busbar 1 the "Zone 1+ check zone" will operate and

take out busbar 1.......the same for busbar 2

the check zone is actully a policeman to check on your Zones 1 and 2

In order for a buszone operation you need both z1+check zone operation
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javadkv
Active Contributor

Join Date: Jul 2011
Posts: 13
#3
In reply to #2

Re: Busbar Protection

07/27/2011 2:33 AM

Thank you MJ jordan.

wheather bus zone and check zone have seperate set of CTs? and both of them should act simultaniously for acting bb protection?
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Anonymous Poster #2
#4
In reply to #2

Re: Busbar Protection

05/10/2014 1:28 AM

OT:

I just want to know if you have any ideas or good read books about Bus Bar Protection ? Specially on Stability and Sentivity test for Bus Bar protection..

TIA
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