
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
Summary of Contents for Relion 670 series
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