Transformer
protection
Transformer
Line
Line
Setting of current input:
Set parameter
CTStarPoint with
Transformer as
reference object.
Correct setting is
"ToObject"
Forward
Reverse
Definition of direction
for directional functions
Line protection
Setting of current input:
Set parameter
CTStarPoint with
Transformer as
reference object.
Correct setting is
"ToObject"
Setting of current input:
Set parameter
CTStarPoint with
Line as
reference object.
Correct setting is
"FromObject"
IEC05000753=IEC05
000753=1=en=Origin
al[1].vsd
I
s
I
s
I
p
I
p
I
p
IED
IED
IEC05000753 V2 EN-US
Figure 4:
Example how to set CTStarPoint parameters in the IED
Figure
shows the normal case where the objects have their own CTs. The settings
for CT direction shall be done according to the figure. To protect the line, direction
of the directional functions of the line protection shall be set to
Forward
. This
means that the protection is looking towards the line.
4.2.2.2
Example 2
SEMOD55055-29 v7
Two IEDs used for protection of two objects and sharing a CT.
1MRK 505 388-UEN B
Section 4
Analog inputs
Busbar protection REB650 2.2 IEC
37
Application manual
Summary of Contents for REB650
Page 1: ...RELION 650 SERIES Busbar protection REB650 Version 2 2 Application manual...
Page 2: ......
Page 18: ...12...
Page 28: ...22...
Page 38: ...32...
Page 78: ...72...
Page 96: ...90...
Page 136: ...130...
Page 150: ...144...
Page 156: ...150...
Page 232: ...226...
Page 278: ...272...
Page 298: ...292...
Page 310: ...304...
Page 320: ...314...
Page 321: ...315...