Micom P631 - Page 379

Parameter Address
Default Min Max Unit Logic Diagram
Differential protec‐
tion
DIFF: General enable USER
019 080
0: No
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Disabling and enabling the differential protection function.
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DIFF: Reference power Sref
019 016
38.1 0.1 5000.0 MVA Fig. 3-78, (p. 3-111)
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Setting for the reference power, usually the nominal transformer power.
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DIFF: Ref. curr. Iref,a
019 023
Not measured 0.000 50.000 kA Fig. 3-78, (p. 3-111)
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Display of the reference current calculated by the P631 for end a.
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DIFF: Ref. curr. Iref,b
019 024
Not measured 0.000 50.000 kA Fig. 3-78, (p. 3-111)
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Display of the reference current calculated by the P631 for end b.
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DIFF: Matching fact. kam,a
004 105
Not measured 0.000 50.000 Fig. 3-78, (p. 3-111)
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Display of the matching factor calculated by the P631 for end a.
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DIFF: Matching fact. kam,b
004 106
Not measured 0.000 50.000 Fig. 3-78, (p. 3-111)
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Display of the matching factor calculated by the P631 for end b.
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DIFF: Meas. value rel. Id
011 037
0.000 0.000 0.200 Iref Fig. 3-89, (p. 3-122)
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Setting for the minimum differential current that must be exceeded in order for
the P631 to display the differential currents as measured operating data.
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DIFF: Meas. value rel. IR
011 038
0.000 0.000 0.200 Iref Fig. 3-89, (p. 3-122)
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Setting for the minimum restraining current that must be exceeded in order for
the P631 to display the restraining currents as measured operating data.
7 Settings
P631
P631/EN M/R-11-C // P631-310-650 7-79