2-50
ALPS Advanced Line Protection System
GE Power Management
2.4 INVERSE CURVES
2 CALCULATION OF SETTINGS
2
Figure 2–20: EXTREMELY INVERSE CURVE
0.01
0.1
1
10
100
0.1
1
10
100
MULTIPLES OF PICKUP
10
9
8
7
6
5
4
3
2
1
0.5
TIME
(seconds)
TIME
DIAL
−
=
2
1
82
5
M
.
TD
)
RESET
(
t
+
−
=
02434
0
1
64
5
2
.
M
.
TD
)
PU
(
t