ABB Relion 670 series, Technical Reference Manual

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Table 286: SAPTUF (81) Output signals
Name Type Description
TRIP BOOLEAN Operate/trip signal for frequency.
PICKUP BOOLEAN Start/pick-up signal for frequency.
RESTORE BOOLEAN Restore signal for load restoring purposes.
BLKDMAGN BOOLEAN Blocking indication due to low magnitude.
FREQ REAL Measured frequency
9.1.5 Setting parameters
Table 287: SAPTUF (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 voltage
PUFrequency 35.00 - 75.00 Hz 0.01 48.80 Frequency setting pickup value.
IntBlockLevel 0 - 100 %VB 1 50 Internal blocking level in % of VBase.
TimeDlyOperate 0.000 - 60.000 s 0.001 0.200 Operate time delay in over/under-frequency
mode.
TimeDlyReset 0.000 - 60.000 s 0.001 0.000 Time delay for reset.
TimeDlyRestore 0.000 - 60.000 s 0.001 0.000 Restore time delay.
RestoreFreq 45.00 - 65.00 Hz 0.01 50.10 Restore frequency if frequency is above
frequency value.
TimerOperation Definite timer
Volt based timer
- - Definite timer Setting for choosing timer mode.
VNom 50 - 150 %VB 1 100 Nominal voltage in % of VBase for voltage
based timer.
VMin 50 - 150 %VB 1 90 Lower operation limit in % of VBase for
voltage based timer.
Exponent 0.0 - 5.0 - 0.1 1.0 For calculation of the curve form for voltage
based timer.
t_MaxTripDelay 0.010 - 60.000 s 0.001 1.000 Maximum time operation limit for voltage
based timer.
t_MinTripDelay 0.010 - 60.000 s 0.001 1.000 Minimum time operation limit for voltage
based timer.
Section 9
1MRK505222-UUS C
Frequency protection
556
Technical reference manual