Setting
IED 1
IED 2
Description
IdMinHigh
2.00 ·
IBase
2.00 ·
IBase
Temporarily
decreased sensitivity
used when the
protected circuit is
connected to a power
source (note 4)
IntervIdMinHig
30.000 s
30.000 s
Time interval when
IdMinHig is active
(note 5)
Idunre
5.50 ·
IBase
5.50 ·
IBase
Unrestrained operate
(differential) current
limit (note 6)
CrossBlock
1
1
CrossBlock logic
scheme applied (note
7)
I2/I1Ratio
15%
15%
Second to
fundamental
harmonic ratio limit
I5/I1Ratio
25%
25%
Fifth to fundamental
harmonic ratio limit
NegSeqDiff
On
On
Internal/external fault
discriminator enabled
(default)
IminNegSeq
0.04 ·
IBase
0.04 ·
IBase
Minimum value of the
negative-sequence
current
NegSeqROA
60.0 deg
60.0 deg
Operate angle (ROA)
for Internal/external
fault discriminator
(default)
AddDelay
Off
Off
Additional delay
disabled (default)
ImaxAddDelay
1.00 ·
IBase
1.00 ·
IBase
Not applicable in this
case (default)
CurveType
15
15
Not applicable in this
case (default)
DefDelay
0.100 s
0.100 s
Not applicable in this
case (default)
IDMTtMin
0.010 s
0.010 s
Not applicable in this
case (default)
TD
0.00
0.00
Not applicable in this
case (default)
p
0.02
0.02
Not applicable in this
case (default)
a
0.14
0.14
Not applicable in this
case (default)
b
1.00
1.00
Not applicable in this
case (default)
c
1.00
1.00
Not applicable in this
case (default)
Section 4
1MRK 505 382-UEN E
Analog and binary signal transfer for line differential protection
34
Communication set-up, 670/650 series
Application Guide
© Copyright 2017 ABB. All rights reserved
Summary of Contents for Relion 670 series
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