ABB RED615 Technical Manual page 328

Section 4
Protection functions
322
Operation mode
Yo
Im(Yo) Im(Yo)
Re(Yo)
Settings: Settings:
•Circle conductance •Susceptance forward
•Circle susceptance •Susceptance tilt Ang
•Circle radius
Not applicable in
high resistance earthed
or compensated
systems!
Yo,Go
Im(Yo) Im(Yo)
Re(Yo)
Settings: Settings:
•Circle conductance •Circle conductance
•Circle susceptance •Circle susceptance
•Circle radius •Circle radius
•Conductance forward •Susceptance forward
•Conductance tilt Ang •Susceptance tilt Ang
GUID-7EDB14B9-64B4-449C-9290-70A4CC2D588F V1 EN
Figure 160: Admittance characteristic with different operation modes when
Directional mode = "Forward"
Bo Go
Im(Yo)
Re(Yo)
Settings:
•Conductance forward
•Conductance tilt Ang
Not applicable in
unearthed systems!
Operation mode
Yo,Bo Go,Bo
Im(Yo)
Re(Yo)
Settings:
•Conductance forward
•Conductance tilt Ang
•Susceptance forward
•Susceptance tilt Ang
1YHT530004D05 D
Re(Yo)
Yo,Go,Bo
Im(Yo)
Re(Yo) Re(Yo)
Settings:
•Circle conductance
•Circle susceptance
•Circle radius
•Conductance forward
•Conductance tilt Ang
•Susceptance forward
•Susceptance tilt Ang
Technical Manual
615 series