Circuit-breakers NZM1, 2, 3, 4 up to 2000 A - Moeller Electric Parts
Circuit-breakers NZM1, 2, 3, 4 up to 2000 A - Moeller Electric Parts
Circuit-breakers NZM1, 2, 3, 4 up to 2000 A - Moeller Electric Parts
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For <strong>Moeller</strong> <strong>Electric</strong> Sales and S<strong>up</strong>port call KMparts.com (866) 595-9616<br />
<strong>Circuit</strong>-<strong>breakers</strong>, switch-disconnec<strong>to</strong>rs<br />
10/116<br />
Engineering<br />
Frame size 4: tripping characteristics<br />
NZM4<br />
Systems, cable, selectivity and genera<strong>to</strong>r protection with NZM4<br />
Tripping time [s]<br />
2.5 h 8000<br />
6000<br />
4000<br />
<strong>2000</strong><br />
1000<br />
800<br />
(10 min) 600<br />
400<br />
200<br />
100<br />
80<br />
(1 min) 60<br />
40<br />
20<br />
10<br />
6 8<br />
4<br />
2<br />
0.8 1<br />
0.6<br />
0.4<br />
0.2<br />
0.1<br />
0.08<br />
0.06<br />
0.04<br />
0.02<br />
0.01<br />
0.008<br />
0.006<br />
0.004<br />
t sd [ms] = 20............1000<br />
I sd = 2 3 4 5 6 7 8 910<br />
I i =<br />
t r [s]<br />
20<br />
17<br />
14 10<br />
8<br />
6<br />
4<br />
2<br />
x I r<br />
2 3 4 5 6 7 8 10 12 x I n<br />
NZM4(-4)-VE(F)...<br />
Characteristics for I r = 1,0 x In<br />
I 2 t = constant<br />
<strong>Moeller</strong> HPL0211-2007/2008<br />
http://catalog.moeller.net<br />
Systems, cable, selectivity and genera<strong>to</strong>r protection with NZM4, <strong>2000</strong> A<br />
Tripping time [s]<br />
10000<br />
8000<br />
6000<br />
4000<br />
<strong>2000</strong><br />
1000<br />
800<br />
(10 min) 600<br />
400<br />
200<br />
100<br />
80<br />
(1 min) 60<br />
40<br />
20<br />
10<br />
6 8<br />
4<br />
2<br />
0.8 1<br />
0.6<br />
0.4<br />
0.2<br />
0.1<br />
0.08<br />
0.06<br />
0.04<br />
0.02<br />
0.01<br />
0.008<br />
0.006<br />
0.004<br />
I sd = 2 2.5 3 3.5 4 4.5 5 5.56 x I r<br />
I i =<br />
t r [s]<br />
10<br />
1000<br />
750<br />
500<br />
x I n<br />
300<br />
200<br />
2 2.5 33.5<br />
4 5 6 7 8 100<br />
0<br />
60<br />
20<br />
6 8 4<br />
2<br />
t sd [ms]<br />
NZM4-VE<strong>2000</strong><br />
Characteristics for I r = 1,0 x In<br />
without I 2 t = constant function<br />
0.002<br />
0.002<br />
0.001<br />
1<br />
2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100<br />
0.001<br />
1<br />
2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100<br />
x I r<br />
n x I r<br />
Systems, cable, selectivity and genera<strong>to</strong>r protection with NZM4, <strong>2000</strong> A<br />
Mo<strong>to</strong>r protection with NZM4<br />
Tripping time [s]<br />
10000<br />
8000<br />
6000<br />
4000<br />
<strong>2000</strong><br />
1000<br />
800<br />
(10 min) 600<br />
400<br />
NZM4-VE<strong>2000</strong><br />
Characteristics for I r = 1,0 x In<br />
Tripping time [s]<br />
2.5 h 8000<br />
6000<br />
4000<br />
<strong>2000</strong><br />
1000<br />
800<br />
(10 min) 600<br />
400<br />
NZM4-ME...<br />
Characteristics for I r = 1,0 x In<br />
200<br />
200<br />
100<br />
80<br />
(1 min) 60<br />
40<br />
20<br />
10<br />
6 8<br />
4<br />
t r [s]<br />
10<br />
6 8 4<br />
100<br />
80<br />
(1 min) 60<br />
40<br />
20<br />
10<br />
6 8<br />
4<br />
t r [s]<br />
20<br />
17<br />
14<br />
10 8 6<br />
4<br />
2<br />
0.8 1<br />
0.6<br />
0.4<br />
0.2<br />
0.1<br />
0.08<br />
0.06<br />
0.04<br />
2<br />
I sd = 2 2.5 3 3.5 4 4.5 5 5.56 x I r<br />
I i = 2 2.5 33.5<br />
4 5 6 7 8 x I n<br />
I 2 t = constant<br />
t sd [ms] = 20............1000<br />
2<br />
0.8 1<br />
0.6<br />
0.4<br />
0.2<br />
0.1<br />
0.08<br />
0.06<br />
0.04<br />
I i =<br />
2<br />
2 3 4 5 6 8 10 12 14 x I r<br />
0.02<br />
0.02<br />
0.01<br />
0.008<br />
0.006<br />
0.004<br />
0.01<br />
0.008<br />
0.006<br />
0.004<br />
0.002<br />
0.002<br />
0.001<br />
1<br />
2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100<br />
0.001<br />
1<br />
2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100<br />
n x I r<br />
x I r
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