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TMS Time Multiplier Setting (-).
Curve Type
IEC STI
Short Time Inverse
IEC SI
Standard Inverse
IEC VI
Very Inverse
IEC EI
Extremely Inverse
IEC LTI
Long Time Inverse
The image below shows the trip delay curves for all IEC characteristics with TMS = 1. TMS
can be set within the range of (0.025 - 3.2) for any protection function.
Trip Delay Formula
0.05 s
t= [
] ×TMS
I
0.04
-1
(
)
I
s
0.14 s
t= [
] ×TMS
I
0.02
-1
(
)
I
s
13.5 s
t= [
] ×TMS
I
(
)-1
I
s
80 s
t= [
] ×TMS
I
2
-1
(
)
I
s
120 s
t= [
] ×TMS
I
(
)-1
I
s
44
Reset Delay Setting Zone
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