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DHARAMRAJSINH
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Join Date: Feb 2014
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Relay Coordination

06/20/2014 2:04 AM

I need to do relay co ordination

any one can guide me for relay co ordination, and any technical article can any body share
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kvsridhar
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#1

Re: Relay co ordination

06/20/2014 5:25 AM

Assuming you are referring to Type II Coordination of Motor Starters, here is a good link:

WEG Type 2 Coordination of Circuit Breakers and Motor Starters

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ozzb
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#2

Re: Relay co ordination

06/20/2014 7:23 AM

http://www.humankinetics.com/excerpts/excerpts/keys-to-secure-a-smooth-baton-handoff

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PWSlack
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#3

Re: Relay co ordination

06/20/2014 7:36 AM

British Standard 7671.

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PeterT
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#4

Re: Relay co ordination

06/20/2014 8:18 AM

Protective relay coordination is not a task for the untrained. There are many parameters and conditions that need to be taken into account to properly coordinate relays. If not done correctly, the result can be catastrophic failure of electrical equipment and injury (or even death) for operating personnel.

If you want to start to learn about relay coordination, GE has a great (free) download of their "The Art and Science of Protective Relaying" at the following link:

http://www.gedigitalenergy.com/multilin/notes/artsci/index.htm

Start studying it, and you will learn a lot. But in the meantime, hire someone who is trained and qualified to do your coordination study - it will be money well-spent to be assured that it is done properly and safely.

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DHARAMRAJSINH
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#5
In reply to #4

Re: Relay co ordination

06/20/2014 8:53 AM

Thanks for sharing a valuable book
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msamad
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Location: Houston, USA
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#6

Re: Relay Coordination

06/21/2014 11:32 PM

This is one of the best documents for the relay coordination:

http://epowerengineering.com/guides-part-5.pdf

- MS

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ShawnHoppe
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Join Date: Jul 2014
Location: I live in USA, Colorado in the houses of 7 Summits
Posts: 28
#7

Re: Relay Coordination

07/29/2014 4:13 AM

The term relay coordination covers various concepts as discrimination, selectivity and backup protection. Relay coordination is not combined only with relay or equipment's operating characteristics. It also includes some other protective device characteristics such as Fuse, MCB's, Circuit Breakers as applicable
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DHARAMRAJSINH (1); kvsridhar (1); msamad (1); ozzb (1); PeterT (1); PWSlack (1); ShawnHoppe (1)

Previous in Forum: Maximum Voltage Drop in Cable Size for Transformer Feeder   Next in Forum: AC/AC converter --- Buck

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