Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. England
Tel: +44 (0) 1902 773746 Fax: +44 (0) 1902 420639 Email: sales@broycecontrol.com Web: www.broycecontrol.com
The information provided in this literature is believed to be accurate (subject to change without prior notice); however, use of such information shall be entirely at the user’s own risk
.
P9680[C]-5-A.DOCX
6
6
6
6
2006
1 10 20
I/I>
I/I>
I/I>
I/I>
1 10 20
I/I>
I/I>
I/I>
I/I>
•
IDMT CHARACTERISTIC CURVES
* Abbreviations used in the LCD screen for the selected IDMT characteristic curve.
The sequence of curves that are presented to the user when programming is shown below
kkkk
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
Normal Inverse 1.3/10
Normal Inverse 1.3/10
Normal Inverse 1.3/10
Normal Inverse 1.3/10
(NI 1.3/10)*
(NI 1.3/10)*
(NI 1.3/10)*
(NI 1.3/10)*
1 10 20
I/I>
I/I>
I/I>
I/I>
kkkk
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
t t t t
(s
)
(s
)
(s
)
(s
)
10
1
0.1
0.01
t t t t
(s
)
(s
)
(s
)
(s
)
Normal Inverse 3/10
Normal Inverse 3/10
Normal Inverse 3/10
Normal Inverse 3/10
(NI 3/10)*
(NI 3/10)*
(NI 3/10)*
(NI 3/10)*
t t t t
(s
)
(s
)
(s
)
(s
)
kkkk
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
10
1
0.1
1 10 20
I/I>
I/I>
I/I>
I/I>
Long Time Inverse
Long Time Inverse
Long Time Inverse
Long Time Inverse
(LTI)*
(LTI)*
(LTI)*
(LTI)*
.
200
100
10
1
0.1
kkkk
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
t t t t
(s
)
(s
)
(s
)
(s
)
1 10 20
I/I>
I/I>
I/I>
I/I>
Very Inverse
Very Inverse
Very Inverse
Very Inverse
(VI)*
(VI)*
(VI)*
(VI)*
1 10 20
I/I>
I/I>
I/I>
I/I>
kkkk
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
10
1
0.1
0.01
t t t t
(s
)
(s
)
(s
)
(s
)
Extremely Inverse
Extremely Inverse
Extremely Inverse
Extremely Inverse
(EI)*
(EI)*
(EI)*
(EI)*
kkkk
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
100
10
1
0.1
0.01
t t t t
(s
)
(s
)
(s
)
(s
)
0.1
0.05
1 10 20
I/I>
I/I>
I/I>
I/I>
Extremely Inverse
Extremely Inverse
Extremely Inverse
Extremely Inverse
(EI 0.65)*
(EI 0.65)*
(EI 0.65)*
(EI 0.65)*
kkkk
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1 10 20
I/I>
I/I>
I/I>
I/I>
1000
100
10
1
0.1
0.01
1.0
0
NI 3/10
NI 1.3/10
LTI
EI
EI 0.65
VI
t t t t
(s
)
(s
)
(s
)
(s
)
