ABB Relion 670 Series Technical Reference Manual page 567

1MRK505222-UUS C
9.2.5
Table 291: SAPTOF (81) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
VBase 0.05 - 2000.00
PUFrequency 35.00 - 75.00
IntBlockLevel 0 - 100
TimeDlyOperate 0.000 - 60.000
TimeDlyReset 0.000 - 60.000
9.2.6
9.3
Technical reference manual
Table 290: SAPTOF (81) Output signals
Name Type
TRIP BOOLEAN
PICKUP BOOLEAN
BLKDMAGN BOOLEAN
FREQ REAL
Setting parameters
Unit Step
- -
kV 0.05
Hz 0.01
%VB 1
s 0.001
s 0.001
Technical data
Table 292: SAPTOF (81) technical data
Function
Operate value, pickup function
Operate time, pickup function
Reset time, pickup function
Operate time, definite time
function
Reset time, definite time function
Rate-of-change frequency protection SAPFRC (81)
Description
Operate/trip signal for frequency.
Start/pick-up signal for frequency.
Blocking indication due to low magnitude.
Measured frequency
Default Description
Disabled Disable/Enable Operation
400.00 Base voltage
51.20 Frequency setting pickup value.
50 Internal blocking level in % of VBase.
0.000 Operate time delay in over/under-frequency
mode.
0.000 Time delay for reset.
Range or value
(35.00-75.00) Hz
100 ms typically at f -0.5 Hz to f
set
100 ms typically
(0.000-60.000)s
(0.000-60.000)s
Section 9
Frequency protection
Accuracy
± 2.0 mHz at
symmetrical three-
phase voltage
+0.5 Hz -
set
-
± 0.5% ± 10 ms
± 0.5% ± 10 ms
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