ABB Relion 670 series, Technical Reference Manual

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