Trip area
ROADir
ANSI06000650-3-en.vsd
0
RCADir
0
3
I
0
3
I
cos
0
3
ref
V
V
ANSI06000650 V3 EN
Figure 70:
Characteristic with ROADir restriction
The function indicates forward/reverse direction to the fault. Reverse direction is defined
as 3I
0
·cos (φ + 180°) ≥ the set value.
It is also possible to tilt the characteristic to compensate for current transformer angle error
with a setting
RCAComp
as shown in the Figure
:
1MRK 511 365-UUS A
Section 8
Current protection
Phasor measurement unit RES670 2.1 ANSI
235
Technical manual
Summary of Contents for Relion 670 Series RES670
Page 1: ...Relion 670 series Phasor measurement unit RES670 2 1 ANSI Technical manual ...
Page 2: ......
Page 36: ...30 ...
Page 76: ...70 ...
Page 106: ...100 ...
Page 150: ...144 ...
Page 274: ...268 ...
Page 326: ...320 ...
Page 356: ...350 ...
Page 382: ...376 ...
Page 416: ...410 ...
Page 590: ...584 ...
Page 604: ...598 ...
Page 694: ...688 ...
Page 756: ...750 ...
Page 834: ...828 ...
Page 836: ...830 ...
Page 876: ...870 ...
Page 886: ...880 ...
Page 887: ...881 ...