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Active Contributor

Join Date: Dec 2008
Location: Ha Noi - Viet Nam
Posts: 20

Low Resistance and High Resistance in Difference Busbar Protection

07/12/2012 4:58 AM

Dear friends.

I can not discriminate low resistance and high resistance difference busbar protection.

You can explain it for me. Thank you

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Guru

Join Date: May 2010
Location: Liverpool, NY
Posts: 960
Good Answers: 131
#1

Re: Low Resistance and High Resistance in Difference Busbar Protection

07/13/2012 11:49 AM

Here are several good references regarding bus differential relaying, which include information on high-impedance vs. low-impedance differential.

http://store.gedigitalenergy.com/FAQ/Documents/B30/GER-3961.pdf

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Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 166
#2

Re: Low Resistance and High Resistance in Difference Busbar Protection

07/13/2012 11:22 PM

Is it impedance or resistance?

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