ABB REL650 Applications Manual page 137

1MRK 506 334-UUS A
Application manual
X
Z3
Z2
Z1
R
Z4
Z5
CharPPZx
CharPGZx
where x=1- 5
Mho characteristic
ANSI11000265 V1 EN
Figure 64: Impedance characteristic
Complex characteristic can be formed with the ZQMPDIS ( 21) function. Figure
for example, when zone 1 is set to combined quadrilateral and mho characteristic, zone 2
is set to forward mho characteristic, zone 3 is set to reverse mho characteristic and, zone
4 and 5 are set to quadrilateral characteristic.
X
Z5
Z4
Z3
Z2
Z1
R
CharPPZx
CharPGZx
where x=1- 5
Quadrilateral characteristic
Section 6
Impedance protection
X
Z5
Z4
Z3
Z2
Z1
CharPPZx
CharPGZx
where x=1- 5
Mho and Quadrilateral characteristic
ANSI11000265_1_en.vsd
65
R
shows
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