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