5.2.4
Function block
ANSI05000363-2-en.vsd
HZPDIF (87)
ISI*
BLOCK
BLKTR
TRIP
ALARM
MEASVOLT
ANSI05000363 V2 EN
Figure 66:
HZPDIF (87) function block
5.2.5
Input and output signals
Table 84:
HZPDIF (87) Input signals
Name
Type
Default
Description
ISI
GROUP
SIGNAL
-
Group signal for current input
BLOCK
BOOLEAN
0
Block of function
BLKTR
BOOLEAN
0
Block of trip
Table 85:
HZPDIF (87) Output signals
Name
Type
Description
TRIP
BOOLEAN
Trip signal
ALARM
BOOLEAN
Alarm signal
MEASVOLT
REAL
Measured RMS voltage on CT secondary side
5.2.6
Setting parameters
Table 86:
HZPDIF (87) Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Disabled
Enabled
-
-
Disabled
Disable/Enable Operation
AlarmPickup
2 - 500
V
1
10
Alarm voltage level on CT secondary
tAlarm
0.000 - 60.000
s
0.001
5.000
Time delay to activate alarm
TripPickup
5 - 900
V
1
100
Pickup voltage level in volts on CT secondary
side
R series
10 - 20000
ohm
1
250
Value of series resistor in Ohms
1MRK505222-UUS C
Section 5
Differential protection
163
Technical reference manual
Summary of Contents for Relion 670 series
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