ABB Remote I/O RIO600 Installation And Commissioning Manual page 118

Section 6
Commissioning
110
Min forward angle
Non-operating zone
Max reverse angle
Min operate
current
GUID-2AD845F7-2F52-49A1-94DD-E04FAD186750 V1 EN
Figure 64: Configurable operating sectors in phase angle characteristic
Table 73: Fault direction indication
Fault direction
Angle between the polarizing and operating
quantity is not in any of the defined sectors
Angle between the polarizing and operating
quantity is in the forward sector
Angle between the polarizing and operating
quantity is in the reverse sector
Angle between the polarizing and operating
quantity is in both the forward and the reverse
sectors, that is, the sectors are overlapping.
The directional operations forward and reverse are not allowed when the measured
polarizing or operating quantities are invalid, that is, their magnitude is below the
minimum operate values. In case of low magnitudes, the STR DIRGENERAL output
is set to 0=unknown. This means the function is allowed to operate in the directional
mode as non-directional, since the directional information is invalid.
Iosin and Iocos criteria
-Uo
j
= 0 deg
RCA
Forward operating zone
Io
Backward operating zone
Value
0 = unknown
1 = forward
2 = backward
3 = both
1MRS757488 H
Max forward angle
Min reverse angle
Installation and Commissioning Manual
RIO600