Woodward HighPROtec MCDLV4, Manual

Page: 690 / 1275

Protective Elements
Thermal Curve IT
Various reset modes are available:
Resetting via characteristic, delayed and instantaneous.
690 MCDLV4 DOK-HB-MCDLV4-2E
0.05
0.5
1
2
5
10
0.01 0.1 1 10 100
0.01
0.1
1
10
100
1000
t [s]
I / In (multiples of the nominal current )
tchar=
P
d
o
c_
Z
0
9
»Char« = IT
Reset Trip
t = 5
·
3
2
·
tchar
If: < 1
I
In
If:
I
In
1 <
t =
I
In
1
tchar
5
·
3
1