t s
k A
B
U
U
U
C
D
E
=
⋅
×
−
>
>
−
+
GUID-6E9DC0FE-7457-4317-9480-8CCC6D63AB35 V2 EN
(Equation 46)
t [s] operate time in seconds
U
measured voltage
U> the set value of
Start value
k
the set value of
Time multiplier
Table 479:
Curve coefficients for the standard overvoltage IDMT curves
Curve name
A
B
C
D
E
(17) Inverse Curve A 1
1
0
0
1
(18) Inverse Curve B 480
32
0.5
0.035
2
(19) Inverse Curve C 480
32
0.5
0.035
3
Section 9
1MRS757454 D
General function block features
478
611 series
Technical Manual
Summary of Contents for Relion 611 Series
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