X
R
Outer Min Ris Rch
Outer Min Ris Rch
Outer Min Ris Rch
Outer Min Ris Rch
Outer R1
Outer X1
Inner X1
Outer X1 reverse
Inner X1 reverse
Inner R1
Inner Min Ris Rch
Inner Min Ris Rch
Inner Min Ris Rch
Inner Min Ris Rch
Inner Fw Ld
Ris Rch
Inner Rv
Ld Ris Rch
Outer Fw Ld
Ris Rch
Outer Rv Ld Ris Rch
Load angle2
Load angle1
Load angle1
Load angle2
Figure 585: Quadrilateral operation characteristics
The reach of inner polygon in the reactive direction is defined by the line reach
independently with the settings
Inner R1, Inner X1, Inner X1 reverse. The resistive
reach of inner polygon is defined at the minimum resistive reach with settings
Inner
Min Ris Rch. The reach of outer polygon in the reactive direction is defined by the
line reach independently with the settings
Outer R1, Outer X1, Outer X1 reverse.
The resistive reach of outer polygon is defined at the minimum resistive reach with
settings
Outer Min Ris Rch.
Mho circular characteristics
When the
Pe Swg impedance Chr is "Mho (circular)", the DSTRPSB has a double
circular characteristic.
1MRS759142 F
Protection functions
REX640
Technical Manual
1049