LSIS GIPAM 115 FI - Inverse Time Curve Characteristics; Standard Inverse Time (SI) Curves

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7.1 S tandard Inverse Time
7.1 S tandard Inverse Time 7.1 S tandard Inverse Time
7.1 S tandard Inverse Time
t =
0.14
(I / Is) - 1
X TL
0.02
7.
7. 7.
7. Inverse time Curve
Inverse time CurveInverse 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