ABB RELION 620 Series Technical Manual page 451

1MAC504801-IB E
620 series ANSI
Technical Manual
Table 341: Angle outputs when settings CT connection 1-2 and CT connection 1-3 match with the
actual CT connections on winding 1, 2 and 3 but the phase order is wrong on winding 1
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
Table 342: Angle outputs when settings CT connection 1-2 and CT connection 1-3 match with the
actual CT connections on winding 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
Table continues on next page
Angle value Possible reason if not Ok
-120 Wrong phase order
-120 Wrong phase order
-120 Wrong phase order
+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
Section 4
Protection functions
445