Example 2 - ABB Relion REC670 Applications Manual

1MRK 511 358-UEN A
I
s
Setting of current input:
Set parameter
CTStarPoint with
Transformer as
reference object.
Correct setting is
IEC05000753 V2 EN-US
Figure 7:
The figure
direction shall be done according to the figure. To protect the line the direction of the
directional functions of the line protection shall be set to
protection is looking towards the line.
4.2.2.2

Example 2

Two IEDs used for protection of two objects and sharing a CT.
Application manual
Transformer
I
p
Transformer
protection
IED
Setting of current input:
Set parameter
CTStarPoint with
Transformer as
reference object.
Correct setting is
"ToObject"
Example how to set CTStarPoint parameters in the IED
7 shows the normal case where the objects have their own CTs. The settings for CT
I
I
p
p
I
s
Setting of current input:
Set parameter
CTStarPoint with
reference object.
Correct setting is
"ToObject" "FromObject"
Line
Line
Reverse Forward
Definition of direction
for directional functions
Line protection
IED
Line as
IEC05000753=IEC05
000753=1=en=Origin
al[1].vsd
Forward . This means that the
Section 4
Analog inputs
SEMOD55055-29 v5
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