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sefaili
Participant

Join Date: Mar 2010
Posts: 4

Restraing Slope for Differential Relays

03/08/2010 3:10 PM

Hi,

do anybody know that how can I set restraint slope for AREVA MICOM P642 and P643 Differantial Relays? We protect the power transformer. I will be very happy, if anybody can send me a setting file for AREVA MICOM Differential relay.

Thank for your attention.

Best wishes

Sefa İLİ
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Pathfinder Tags: Differantial Relay
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nikolay
Power-User

Join Date: Dec 2007
Location: Brasov, Romania
Posts: 255
Good Answers: 7
#1

Re: Restraing Slope for Differential Relays

03/09/2010 12:50 AM

The settings for protections are given by the power system dispatch. They calculate the settings for each power line, generator and transformer.

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Anonymous Poster
#2

Re: Restraing Slope for Differential Relays

03/09/2010 1:28 AM

Info about we want to protect of Transformer

S : 100 MVA

HV/LV : 154.000 / 33.600 Volt

%Uk : 12,0

Connection: Ynyn0

Primer Side CT : 400 / 5 Amper

Seconder Side CT : 2000 / 5 Amper

do anybody calculate differantial setting values for that transformer ?

What should i set below values ?

Is1 (pickup) = ? pu

K1 : ? %

Is2 : ? pu

K2 : ? %

THANKS FOR YOUR ATTENTION

BEST WISHES...
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