26
7.1 S tandard Inverse T im e
7.1 S tandard Inverse T im e
7.1 S tandard Inverse T im e
7.1 S tandard Inverse T im e
t =
0.14
(I / Is) - 1
X TL
0.02
7.
7.
7.
7. Inverse time Curve
Inverse time Curve
Inverse time Curve
Inverse time Curve
정반한시(SI)
0.01
0.1
1
10
100
1
10
100
I / Is
t[ sec ]
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
t = operating time
I = fault value
Is = setting value
TL = Time Lever
(Time setting value based on
characteristic curve)
0.05
1.0
Standard inverse time delay
