ABB 615 series Technical Manual page 355

1MAC059074-MB A
615 series ANSI
Technical Manual
Min forward angle
Non-operating area
88 deg
Max reverse angle
1% nominal
amplitude
20% nominal
amplitude
100% nominal
amplitude
GUID-A8A4ACE3-9DDE-46E3-9E0D-E45E12023841 V1 EN
Figure 165: Operating characteristic for phase angle classic 88
Non-
operating
area
-90 -75
GUID-F9F1619D-E1B5-4650-A5CB-B62A7F6B0A90-ANSI V1 EN
Figure 166: Phase angle classic 88 amplitude
-VG
RCA
Forward
area
IG
Backward
area
I I
/ % of
n
0
100
Min forward angle
90
80
Forward
70
area
60
50
40
30
20
10
-60 -45 -30 -15 0 15
Section 4
Protection functions
Max forward angle
88 deg
Min reverse angle
88 deg
100%
of
85 deg
20%
of
73 deg
1% of
30 45 60 75 90
I
n
I
n
I
n
349