A
B
C
U
0
C
0
ΣI
01
ΣI
02
- U
0
ΣI
02
I
ef
R
0
R
L
- U
0
ΣI
01
GUID-F26BC54D-46C8-4D94-8A49-EC101D51664C V1 EN
Figure 63:
Earth-fault in a compensated network
Directional earth-fault characteristic
Phase angle characteristic
The operation criterion phase angle is selected with the
Operation mode
setting using
the value "Phase angle".
The forward and reverse sectors are defined separately. The forward operation area is
limited with the
Min forward angle
and
Max forward angle
settings. The reverse
operation area is limited with the
Min reverse angle
and
Max reverse angle
settings.
The sector limits are always defined as positive degree values.
In the forward operation area, the
Max forward angle
setting defines the clockwise
sector and the
Min forward angle
setting defines the counter clockwise sector,
measured from the
Characteristic angle
setting.
In the reverse operation area, the
Max reverse angle
setting defines the clockwise
sector and the
Min reverse angle
setting defines the counter clockwise sector,
measured from the complement of the
Characteristic angle
setting (180° phase shift).
RCA is set to positive if the operating current lags the polarizing quantity. It is set to
negative if it leads the polarizing quantity.
1MRS757488 H
Section 6
Commissioning
RIO600
109
Installation and Commissioning Manual
Содержание Remote I/O RIO600
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