SEL750 AF relay

[mukhriz]

Hye.
Does anyone here has the abive manual/ literature?
It is for the Schweitzer SEL arc flash protection relay.

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[surgeArrester]

I think you can download this on the SEL website. You can also use the accselator program to download..


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[mukhriz]

I think you can download this on the SEL website. You can also use the accselator program to download..


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Thank you Mr Surge.
By the way do you ( or any practicing eng) knows the best practice of installing this kind of relay, is it preferable to install ay individual load feeder and trip the feeder or ay any instance AF happen,the incoming feeder and related source to be tripped?

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[surgeArrester]

It depends upon the agreed protection philosophy. You can trip all of them if it is detrimental to the switchgear if such AF occurs. Example is, if AF occurs at the bus. Knowing the best practice requires knowledge to which such protection is to be applied.


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[surgeArrester]

I think it is 751.


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