ABB Remote I/O RIO600 Installation And Commissioning Manual page 104

Section 6
Commissioning
96
Table 64: Phase combined fault direction value
Criterion for combined fault direction information
The fault direction information for all phases is
unknown
The fault direction information for at least one
phase is forward, no phase in reverse
The fault direction information for at least one
phase is reverse, no phase in forward
The fault direction information for some phase is
forward and for some phase is reverse
Cross-polarizing as polarizing quantity
When cross polarizing is used as a polarizing method, the directional information is
calculated with formulas defined in
Table 65: Equations for calculating angle difference for cross polarizing method
Faulted Used fault
phases current
A I
A
B I
B
C I
C
A - B
I I
−
A B
GUID-FAFD19A0-
FE4B-4B96-9DBE-
DC325D510215 V1 EN
B - C
I I
−
B C
GUID-B9F88540-
BC53-430B-
B648-3BF1FA3B869D V1
EN
C - A
I I
−
C A
GUID-17E5DFF7-58E7-4
B6A-88F0-81233E7935A
6 V1 EN
Value for fault direction FAULT_DIR
0 = unknown
1 = forward
2 = backward
3 = both
Table 65.
Used polarizing Angle difference
voltage
U
BC
U
(
φ
BC
GUID-A462A4C2-7617-4944-9B69-5AD854D3B40F V1 EN
U
CA
U
(
φ
CA
GUID-55FC4CD6-7CFB-4ECA-90B9-CDC92683A42F V1 EN
U
AB
U
(
φ
AB
GUID-C599D19E-ECE2-4741-9B01-5A7743EA36E7 V1 EN
U U (
U
−
φ
BC CA
BC
GUID-13B8B970-B7FF-4BE0-
GUID-F791A046-3D0A-498A-9D3B-D0F18ABC4C97 V1 EN
A6A0-1647C3E76B40 V1 EN
U U
(
U
−
φ
CA AB
CA
GUID-DEDD912D-F930-4CBA-
GUID-E2C2CB19-A3E9-4FA8-830A-A8E6A06F2D4F V1 EN
A07C-B32CD2D454E7 V1 EN
U U
(
U
−
φ
AB BC
AB
GUID-82D6835D-1E63-4898-
GUID-65D815F8-EF9B-4203-A7F4-52316795EBFD V1 EN
BE40-310ACCD2822B V1 EN
1MRS757488 H
I 90
) ( )
φ φ
− − + °
A RCA
I 90
) ( )
− φ − φ + °
B RCA
I 90
) ( )
− φ − φ + °
C RCA
) ( )
U I I
φ
− − − −
CA A B
) ( )
U I I
− − φ − − φ
AB B C
) ( )
U I I
− − φ − −
BC C A
Installation and Commissioning Manual
90
φ
+ °
RCA
90
+ °
RCA
90
φ + °
RCA
RIO600