ABB Relion 670 Series Applications Manual page 439

1MRK 511 401-UUS F
When used for auto-transformers, information from both windings parts, together with the
neutral point current, needs to be available to the function. This means that three inputs are
needed.
ANSI11000083 V1 EN-US
Figure 209: REFPDIF (87N) function inputs for autotransformer application
For normal transformers only one winding and the neutral point is available. This means that only
two inputs are used. Since all group connections are mandatory to be connected, the third input
needs to be connected to something, which is the GRP_OFF signal in FXDSIGN function block.
FXDSIGN
GRP_OFF
ANSI11000084 V1 EN-US
Figure 210: REFPDIF (87N) function inputs for normal transformer application
16.8 Boolean 16 to Integer conversion B16I
16.8.1 Identification
Function description
Boolean 16 to integer conversion
Bay control REC670
Application manual
REFPDIF (87N)
I3PW1CT1
I3PW2CT1
I3P
ANSI11000083_1_en.vsd
REFPDIF (87N)
I3PW1CT1
I3PW2CT1
I3P
ANSI11000084_1_en.vsd
IEC 61850
identification
B16I
© Copyright 2017 ABB. All rights reserved
IEC 60617 ANSI/IEEE C37.2
identification device number
- -
Section 16
Logic
SEMOD175715-1 v1
SEMOD175721-2 v2
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