ABB Relion 670 Series Technical Reference Manual page 566

Section 9
Frequency protection
9.2.3
9.2.4
560
BLOCK
BLKTRIP
Comparator
V < IntBlockLevel
Voltage
Frequency Comparator
f > PuFrequency
ANSI05000735 V1 EN
Figure 284: Schematic design of overfrequency protection SAPTOF (81)
Function block
SAPTOF (81)
V3P* TRIP
BLOCK PICKUP
BLKTRIP BLKDMAGN
FREQ
ANSI06000280-2-en.vsd
ANSI06000280 V2 EN
Figure 285: SAPTOF (81) function block
Input and output signals
Table 289: SAPTOF (81) Input signals
Name Type
V3P GROUP
SIGNAL
BLOCK BOOLEAN
BLKTRIP BOOLEAN
OR
Time integrator
Definite Time Delay
TimeDlyOperate
TimeDlyReset
Default Description
- Voltage connection
0 Block of function
0 Blocking operate output.
1MRK505222-UUS C
BLOCK
BLKDMAGN
Pickup
&
Trip
Output
Logic
PICKUP PICKUP
TRIP
TRIP
en05000735_ansi.vsd
Technical reference manual