ABB RELION 670 Series Technical Manual page 682

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