ABB RER620 - Page 165

1MAC309294-MB F Section 4
Protection functions
RER620 159
Technical Manual
Figure 70: Operating characteristic for phase angle classic 80
Figure 71: Phase angle classic 80 amplitude
Phase angle, classic 88
The operation criterion phase angle classic 88 is selected with the Operation mode setting
using the value “Phase angle 88”.
Phase angle classic 88 implements the same functionality as the phase angle, but with the
following differences:
RCA
Non-operating area
3% nominal
amplitude
Max forward angle
Min forward angle
Min reverse angle
M
ax reverse angle
70 deg
80 deg
70 deg
80 deg
Forward
area
Backward
area
1% nominal
amplitude
0
I
0
-V
2
3
4
5
6
7
8
9
10
/ % of
090453015 7560-90 -45 -30 -15-75 -60
Min forward angle
1
80 deg
70 deg
Forward
area
Non-
operating
area
3% of
1% of
0
I
n
I
n
I
n
I