ABB Relion 670 series - Function block; Input and output signals; Setting parameters

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