ABB Relion 670 Series Technical Reference Manual page 571

1MRK505222-UUS C
9.3.3
9.3.4
9.3.5
Table 295: SAPFRC (81) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
VBase 0.05 - 2000.00
PUFreqGrad -10.00 - 10.00
IntBlockLevel 0 - 100
tTrip 0.000 - 60.000
Table continues on next page
Technical reference manual
Function block
SAPFRC (81)
V3P* TRIP
BLOCK PICKUP
BLKTRIP RESTORE
BLKREST BLKDMAGN
ANSI06000281-2-en.vsd
ANSI06000281 V2 EN
Figure 287: SAPFRC (81) function block
Input and output signals
Table 293: SAPFRC (81) Input signals
Name Type
V3P GROUP
SIGNAL
BLOCK BOOLEAN
BLKTRIP BOOLEAN
BLKREST BOOLEAN
Table 294: SAPFRC (81) Output signals
Name Type
TRIP BOOLEAN
PICKUP BOOLEAN
RESTORE BOOLEAN
BLKDMAGN BOOLEAN
Setting parameters
Unit Step
- -
kV 0.05
Hz/s 0.01
%VB 1
s 0.001
Default Description
- Group signal for voltage input
0 Block of function
0 Blocking operate output.
0 Blocking restore output.
Description
Operate/trip signal for frequencyGradient
Start/pick-up signal for frequencyGradient
Restore signal for load restoring purposes.
Blocking indication due to low magnitude.
Default Description
Disabled Disable/Enable Operation
400.00 Base setting for the phase-phase voltage in kV
0.50 Frequency gradient start value. Sign defines
direction.
50 Internal blocking level in % of VBase.
0.200 Operate time delay in pos./neg. frequency
gradient mode.
Section 9
Frequency protection
565