Micom P631 - Page 407

Parameter Address
Default Min Max Unit Logic Diagram
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DIFF: 0-seq. filt.a en.PSx
072 155 073 155 074 155 075 155
1: Yes Fig. 3-81, (p. 3-115)
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Enabling or disabling the zero-sequence filtering of winding a.
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DIFF: 0-seq. filt.b en.PSx
072 156 073 156 074 156 075 156
1: Yes Fig. 3-81, (p. 3-115)
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Enabling or disabling the zero-sequence filtering of winding b.
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DIFF: Overflux.bl. en. PSx
072 158 073 158 074 158 075 158
0: No Fig. 3-88, (p. 3-121)
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Enabling or disabling the overfluxing restraint.
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DIFF: Ov. I(5f0)/I(f0) PSx
072 160 073 160 074 160 075 160
20 10 80 % Fig. 3-88, (p. 3-121)
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Operate value of the overfluxing restraint of differential protection as ratio of the
fifth harmonic component to the fundamental wave for the differential current,
in percent.
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DIFF: Op.del.,trip sig.PSx
010 162 010 163 010 164 010 165
0.00 0.00 100.00 s Fig. 3-85, (p. 3-118)
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The time-delay of the differential protection trip signal can be set here.
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DIFF: Hyst. effective PSx
072 006 073 006 074 006 075 006
1: Yes
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The hysteresis of the pick-up characteristics may be disabled or enabled.
7 Settings
P631
P631/EN M/R-11-C // P631-310-650 7-107