Settings; Information List - Siemens 7SC80 Manual

If the protection function is switched ON, the limit values have been exceeded, and the delay time elapsed,
tripping, trip log, and fault recording are initiated.
When set to Alarm Only, no trip command is given, no trip log is started, and no spontaneous fault indica-
tion is issued.
You can set the pickup thresholds of the two voltage elements at address 2251 47NPS-1 Pickup and 2254
47NPS-2 Pickup. No generally binding specifications can be given for the pickup values, because they
depend on the actual system configuration.
The associated dropout ratios are set at address 2252 47NPS-1 D.Ratio and address 2255 47NPS-2
D.Ratio.
You can specify the trip delay time for each element at address 2253 47NPS-1 Delay and address 2256
47NPS-2 Delay. Select the time setting so that permitted short-term voltage peaks caused by switching
operations do not initiate tripping, but stationary overvoltages are cleared in time.
2.7.3

Settings

Addresses which have an appended "A" can only be changed with DIGSI, under "Additional Settings".
Addr. Parameter
2250 FCT 47NPS
2251 47NPS-1 Pickup
2252A 47NPS-1 D.Ratio
2253 47NPS-1 Delay
2254 47NPS-2 Pickup
2255A 47NPS-2 D.Ratio
2256 47NPS-2 Delay
2.7.4

Information List

No. Information
2520 >BLOCK 47NPS
2521 47NPS OFF
2522 47NPS BLOCKED
2523 47NPS ACTIVE
2524 47NPS-2 Pickup
2525 47NPS-1 Pickup
2526 47NPS TRIP
2527 47NPS-2 TRIP
2528 47NPS-1 TRIP
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
Setting Options
OFF
ON
Alarm Only
2 .. 240 V
0.90 .. 0.99
0.00 .. 100.00 sec; ∞
2 .. 240 V
0.90 .. 0.99
0.00 .. 100.00 sec; ∞
Type of Comments
Informa-
tion
SP >BLOCK 47NPS
OUT 47NPS is switched OFF
OUT 47NPS is BLOCKED
OUT 47NPS is ACTIVE
OUT 47NPS-2 picked up
OUT 47NPS-1 picked up
OUT 47NPS TRIP
OUT 47NPS-2 TRIP
OUT 47NPS-1 TRIP
2.7 47 Negative Phase Sequence Overvoltage
Default Setting Comments
OFF 47 Negative Phase Sequence
Overvoltage
30 V 47NPS-1 Pickup
0.95 47NPS-1 Drop out Ratio
0.50 sec 47NPS-1 Time Delay
50 V 47NPS-2 Pickup
0.95 47NPS-2 Drop out Ratio
0.50 sec 47NPS-2 Time Delay
Functions
203