Page 35 - Yueqing Dingqiao Electric Co., Ltd. (English)
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Tripping and Limitation Curves
TCVS 100-630-Distribution Protection
TM magnetic trip units (cont.)
TM200D/250D TM320D/400D
10 000 10 000
5 000
5 000
2 000 2 000
1 000 1 000
500
500
200 200
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 TM200D/TM250D : 2
1 Im = 10 x In 1 TM320D/400D :
.5 .5 Im = 5 10 x In
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
.001 .001
.5 .7 1 2 34 57 10 20 30 50 70 100 200 300 .5 .7 1 2 34 57 10 20 30 50 70 100 200 300
I / Ir I / Ir
TM500D TM600D
10 000 10 000
5 000 5 000
2 000 2 000
1 000 1 000
500 500
200 200
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
1 TM500D : 1 TM600D :
Im = 5 10 x In
.5 .5 Im = 4.2 8.3 x In
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
.001 .001
.5 .7 1 2 34 57 10 20 30 50 70 100 200 300 .5 .7 1 2 34 57 10 20 30 50 70 100 200 300
I / Ir I / Ir
31
