ABB RELION REX640 Technical Manual page 656

Section 4
Protection functions
650
Angle output name
I_ANGL_A2_B2
I_ANGL_B2_C2
I_ANGL_C2_A2
I_ANGL_A3_B3
I_ANGL_B3_C3
I_ANGL_C3_A3
I_ANGL_A1_A2
I_ANGL_B1_B2
I_ANGL_C1_C2
I_ANGL_A1_A3
I_ANGL_B1_B3
I_ANGL_C1_C3
Table 595: Angle outputs when settings CT connection 1-2 and CT connection 1-3 match the
actual CT connections on windings 1, 2 and 3 but the phase order is wrong on winding
2
Angle output name
I_ANGL_A1_B1
I_ANGL_B1_C1
I_ANGL_C1_A1
I_ANGL_A2_B2
I_ANGL_B2_C2
I_ANGL_C2_A2
I_ANGL_A3_B3
I_ANGL_B3_C3
I_ANGL_C3_A3
I_ANGL_A1_A2
I_ANGL_B1_B2
I_ANGL_C1_C2
I_ANGL_A1_A3
I_ANGL_B1_B3
I_ANGL_C1_C3
Angle value Possible reason if not OK
+120 OK
+120 OK
+120 OK
+120 OK
+120 OK
+120 OK
+60 Winding 1 phase B connected as phase A
-60 Winding 1 phase A connected as phase B
±180 OK
+60 Winding 1 phase B connected as phase A
-60 Winding 1 phase A connected as phase B
±180 OK
Angle value Possible reason if not OK
+120 OK
+120 OK
+120 OK
-120 Wrong phase order
-120 Wrong phase order
-120 Wrong phase order
+120 OK
+120 OK
+120 OK
-60 Winding 2 phase B connected as phase A
+60 Winding 2 phase A connected as phase B
±180 OK
±180 OK
±180 OK
±180 OK
1MRS759142 C
REX640
Technical Manual