The most typical
application
YNdx
d
CB
CT
CT
CB
Y
IED
CB
CB
CB
CB
Autotransformer
The most complicated
application - autotransformer
CT
CT
CT
CT
IEC05000058-2-en.vsd
IEC05000058-2 V1 EN
Figure 59:
Examples of applications of the REFPDIF
6.4.3
Function block
IEC06000251_2_en.vsd
REFPDIF
I3P*
I3PW1CT1*
I3PW1CT2*
I3PW2CT1*
I3PW2CT2*
BLOCK
TRIP
START
DIROK
BLK2H
IRES
IN
IBIAS
IDIFF
ANGLE
I2RATIO
IEC06000251 V2 EN
Figure 60:
REFPDIF function block
6.4.4
Signals
Table 61:
REFPDIF Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Group signal for neutral current input
I3PW1CT1
GROUP
SIGNAL
-
Group signal for primary CT1 current input
I3PW1CT2
GROUP
SIGNAL
-
Group signal for primary CT2 current input
I3PW2CT1
GROUP
SIGNAL
-
Group signal for secondary CT1 current input
I3PW2CT2
GROUP
SIGNAL
-
Group signal for secondary CT2 current input
BLOCK
BOOLEAN
0
Block of function
Section 6
1MRK502052-UEN B
Differential protection
166
Technical manual
Содержание Relion REG670
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