ABB Relion 670 series - Page 682

10.3.3 Function block
M14968-3 v6
ANSI06000281-2-en.vsd
SAPFRC (81)
V3P*
BLOCK
BLKTRIP
BLKREST
TRIP
PICKUP
RESTORE
BLKDMAGN
ANSI06000281 V2 EN-US
Figure 366: SAPFRC (81) function block
10.3.4 Signals
PID-3862-INPUTSIGNALS v6
Table 392: SAPFRC (81R) Input signals
Name Type Default Description
V3P GROUP
SIGNAL
- Three phase group signal for voltage inputs
BLOCK BOOLEAN 0 Block of function
BLKTRIP BOOLEAN 0 Blocking operate output
BLKREST BOOLEAN 0 Blocking restore output
PID-3862-OUTPUTSIGNALS v6
Table 393: SAPFRC (81R) Output signals
Name Type Description
TRIP BOOLEAN Operate/trip signal for frequency gradient
PICKUP BOOLEAN Start/pick-up signal for frequency gradient
RESTORE BOOLEAN Restore signal for load restoring purposes
BLKDMAGN BOOLEAN Blocking indication due to low magnitude
10.3.5 Settings
PID-3862-SETTINGS v6
Table 394: SAPFRC (81R) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Operation Disabled/Enabled
PUFreqGrad -10.00 - 10.00 Hz/s 0.01 0.50 Frequency gradient pick up value, the sign
defines direction
tTrip 0.000 - 60.000 s 0.001 0.200 Operate time delay in positive / negative
frequency gradient mode
RestoreFreq 45.00 - 65.00 Hz 0.01 49.90 Restore frequency value
tRestore 0.000 - 60.000 s 0.001 0.000 Restore time delay
tReset 0.000 - 60.000 s 0.001 0.000 Time delay for reset
Section 10 1MRK 502 066-UUS B
Frequency protection
676
Technical manual