Functions
2.15 Earth Current Differential Protection (ANSI 87GN,TN)
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
135
2.15.3 Settings
Addresses which have an appended "A" can only be changed with DIGSI, under Additional Settings.
2.15.4 Information List
Addr. Parameter Setting Options Default Setting Comments
2101 REF PROT. OFF
ON
Block relay
OFF Restricted Earth Fault Protection
2102 REF I> BLOCK 1.0 .. 2.5 I/InO 1.5 I/InO REF Pickup of Phase Current
Blocking
2103 REF U0>RELEASE 1.0 .. 100.0 V; 0 5.0 V REF Pickup of U0> Release
2110 I-REF> 0.05 .. 2.00 I/InO 0.10 I/InO I-REF> Pickup
2112 T I-REF> 0.00 .. 60.00 sec; ∞ 0.00 sec T I-REF> Time Delay
2113A SLOPE 0.00 .. 0.95 0.25 Slope of Charac. I-REF> = f(I0-
Rest)
2114A BASE POINT 0.00 .. 2.00 I/InO 0.00 I/InO Base Point for Slope of Charac-
teristic
No. Information Type of In-
formation
Comments
5803 >BLOCK REF SP >BLOCK restricted earth fault prot.
5811 REF OFF OUT Restricted earth fault is switched OFF
5812 REF BLOCKED OUT Restricted earth fault is BLOCKED
5813 REF ACTIVE OUT Restricted earth fault is ACTIVE
5817 REF picked up OUT REF protection picked up
5821 REF TRIP OUT REF protection TRIP
5833 REF CTstar: VI REF adaptation factor CT starpnt. wind.
5836 REF Adap.fact. OUT REF adverse Adaption factor CT
5837 REF CT-S1: VI REF adaptation factor CT side 1
5838 REF CT-S2: VI REF adaptation factor CT side 2
5840 REF I> blocked OUT REF is blocked by phase current
5841 REF U0> releas. OUT REF release by U0>
5845 I-REF> pickup OUT REF pickup of I-REF>
5846 REF char.pickup OUT REF characteristic picked up
5847 I0-Diff: VI I0-Diff at REF-Trip
5848 I0-Res: VI I0-Restraint at REF-Trip
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