Examples On How To Connect, Configure And Set Ct Inputs For Most Commonly Used Ct Connections - ABB Relion 650 Series Applications Manual

Section 4
Analog inputs
IEC05000462 V2 EN-US
Figure 7:
4.2.2.4 Examples on how to connect, configure and set CT inputs for most
commonly used CT connections
Figure 8
world:
a)
IEC06000641 V1 EN-US
Figure 8:
36
Transformer
Setting of current input
for transformer functions:
Set parameter
CTStarPoint with
Transformer as
reference object.
Correct setting is
"ToObject"
Example how to set CTStarPoint parameters in the IED
defines the marking of current transformer terminals commonly used around the
In the SMAI function block, you have to set if the SMAI block is measuring
current or voltage. This is done with the parameter:
ConnectionType : phase -phase/phase-earth and GlobalBaseSel .
voltage. The
P1
(H1)
I
Sec
x
P2
(H2)
Commonly used markings of CT terminals
Transformer and
Line protection
IED
Setting of current input
for transformer functions:
Set parameter
CTStarPoint with
Transformer as
reference object.
Correct setting is
"ToObject"
S1 (X1)
S2 (X2)
x
b)
1MRK 505 355-UEN A
Line
Reverse
Definition of direction
for directional
line functions
Setting of current input
for line functions:
Set parameter
CTStarPoint with
Line as
reference object.
Correct setting is
"FromObject"
AnalogInputType : Current/
P2
(H2)
S2 (X2)
S1 (X1)
P1
(H1)
c)
en06000641.vsd
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