The characteristics for the ground currents of the overcurrent protection and their possible settings are
entered at addresses:
2111 51c IEC Curve Normal Inverse, Very Inverse, Extremely Inv., Long
Inverse
2112 51c ANSI Curve Very Inverse, Inverse, Short Inverse, Long Inverse,
Moderately Inv., Extremely Inv., Definite Inv.
2113 51Nc Recloser Curve A (101), Curve B (117), Curve C (133), Curve D
(116), Curve E (132), Curve K (162), Curve N (104), Curve
R (105), Curve W (138), Curve 2 (135), Curve 3 (140),
Curve 8 (113), Curve 8* (111), Curve 9 (131), Curve 11
(141)
2117 67Nc-TOC-1 IEC Normal Inverse, Very Inverse, Extremely Inv., Long
Inverse
2119 67Nc-TOC-1 ANSI Very Inverse, Inverse, Short Inverse, Long Inverse,
Moderately Inv., Extremely Inv., Definite Inv.
2120 67Nc-TOC-1 Rec. Curve A (101), Curve B (117), Curve C (133), Curve D
(116), Curve E (132), Curve K (162), Curve N (104), Curve
R (105), Curve W (138), Curve 2 (135), Curve 3 (140),
Curve 8 (113), Curve 8* (111), Curve 9 (131), Curve 11
(141)
At address 2110 51c Drop-out or 2116 67Nc-TOC-1D.out, you can set the dropout behavior Disk
Emulation or Instantaneous for the ground currents of the overcurrent protection.
Settings
Addresses which have an appended “A” can only be changed with DIGSI, under “Additional Settings”.
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding secon-
dary nominal current of the current transformer.
Addr.
Parameter C Setting Options Default Setting Comments
1701 COLDLOAD PICKUP OFF
ON
OFF Cold-Load-Pickup Function
1702 Start Condition No Current
Breaker Contact
79 ready
No Current Start Condition
1703 CB Open Time 0 .. 21600 sec 3600 sec Circuit Breaker OPEN Time
1704 Active Time 0 .. 21600 sec 3600 sec Active Time
1705 Stop Time 1 .. 600 sec; ∞ 600 sec Stop Time
1801 50c-2 PICKUP 1A 0.10 .. 30.00 A; ∞ 10.00 A 50c-2 Pickup
5A 0.50 .. 150.00 A; ∞ 50.00 A
1802 50c-2 DELAY 0.00 .. 60.00 sec; ∞ 0.00 sec 50c-2 Time Delay
1803 50c-1 PICKUP 1A 0.10 .. 30.00 A; ∞ 2.00 A 50c-1 Pickup
5A 0.50 .. 150.00 A; ∞ 10.00 A
1804 50c-1 DELAY 0.00 .. 60.00 sec; ∞ 0.30 sec 50c-1 Time Delay
1805 51c PICKUP 1A 0.10 .. 4.00 A 1.50 A 51c Pickup
5A 0.50 .. 20.00 A 7.50 A
1806 51c TIME DIAL 0.05 .. 3.20 sec; ∞ 0.50 sec 51c Time dial
1806 51c TIME DIAL 0.01 .. 20.00 sec; ∞ 0.50 sec 51c Time dial
1807 51c TIME DIAL 0.50 .. 15.00 ; ∞ 5.00 51c Time dial
2.4.3
Functions
2.4 Dynamic Cold Load Pickup
SIPROTEC Compact, 7SC80, Manual 157
E50417-G1140-C486-A8, Edition 07.2017
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