ABB REL 501-C1 2.5 Technical Reference Manual page 80

68
Distance protection (ZM)
Table 81: General setting parameters for ZM5 (ZMn--) function
Parameter Range
Operation Off, NoneDir,
Forward,
Reverse
Path in local HMI: Settings/Functions/Groupn/Impedance/Zone5
Table 82: Settings for the phase-to-phase measurement ZM5 (ZMn--) function
Parameter Range
Operation PP Off, On
X1PP 0.10 - 400.00
Step: 0.01
R1PP 0.10 - 400.00
Step: 0.01
RFPP 0.10 - 400.00
Step: 0.01
Timer t5PP Off, On
t5PP 0.000 -
60.000
Step: 0.001
Path in local HMI: Settings/Functions/Groupn/Impedance/Zone5
Table 83: Settings for the phase-to-earth measurement ZM5 (ZMn--)
Parameter Range
Operation PE Off, On
X1PE 0.10 - 400.00
Step: 0.01
R1PE 0.10 - 400.00
Step: 0.01
Default Unit Description
Off - Operating mode and directionality for
ZM5
Default Unit Description
Off - Operating mode for ZM5 for Ph-Ph faults
10.00 ohm/ph Positive sequence reactive reach of dis-
tance protection zone 5 for Ph-Ph faults
10.00 ohm/ph Positive sequence line resistance
included in distance protection zone 5 for
Ph-Ph faults
10.00 ohm/loop Resistive reach of distance protection
zone 5 for Ph-Ph faults
On - Operating mode of time delayed trip for
the distance protection zone 5 for Ph-Ph
faults
0.000 s Time delayed trip operation of the dis-
tance protection zone 5 for Ph-Ph faults
Default Unit Description
Off - Operating mode for ZM5 for Ph-E faults
10.00 ohm/ph Positive sequence reactive reach of dis-
tance protection zone 5 for Ph-E faults
10.00 ohm/ph Positive sequence line resistance
included in distance protection zone 5 for
Ph-E faults
Chapter 4
Line distance