
6.11.4
Input and output signals
Table 161:
ZMRPSB (68) Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Group signal for current input
V3P
GROUP
SIGNAL
-
Group signal for voltage input
BLOCK
BOOLEAN
0
Block of function
BLK_SS
BOOLEAN
0
Block inhibit of start output for slow swing condition
BLK_I0
BOOLEAN
0
Block inhibit of start output for subsequent residual
current detection
BLK1PH
BOOLEAN
0
Block one-out-of-three-phase operating mode
REL1PH
BOOLEAN
0
Release one-out-of-three-phase operating mode
BLK2PH
BOOLEAN
0
Block two-out-of-three-phase operating mode
REL2PH
BOOLEAN
0
Release two-out-of-three-phase operating mode
I0CHECK
BOOLEAN
0
Residual current (3I0) detection used to inhibit power
swing detection output
TRSP
BOOLEAN
0
Single-pole tripping command issued by tripping
function
EXT_PSD
BOOLEAN
0
Input for external detection of power swing
Table 162:
ZMRPSB (68) Output signals
Name
Type
Description
PICKUP
BOOLEAN
Power swing detected
ZOUT
BOOLEAN
Measured impedance within outer impedance boundary
ZIN
BOOLEAN
Measured impedance within inner impedance boundary
6.11.5
Setting parameters
Table 163:
ZMRPSB (68) Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Disabled
Enabled
-
-
Disabled
Disbled/Enabled operation
X1InFw
0.10 - 3000.00
ohm
0.01
30.00
Inner reactive boundary, forward
R1LIn
0.10 - 1000.00
ohm
0.01
30.00
Line resistance for inner characteristic angle
R1FInFw
0.10 - 1000.00
ohm
0.01
30.00
Fault resistance coverage to inner resistive
line, forward
X1InRv
0.10 - 3000.00
ohm
0.01
30.00
Inner reactive boundary, reverse
Table continues on next page
Section 6
1MRK505222-UUS C
Impedance protection
354
Technical reference manual
Summary of Contents for Relion 670 series
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