ABB DCS 500B Description page 82

Software for thyristor power converter
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Functional Software description
100
60
50
30
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.06
Figure 51
74
MOTOR TRIPPING TIME SECONDS
300
150 200
500
Motor's PRELOAD factor
0.5
0.7
0.8
0.9
0.95
0.98
0.07
0.1
NORMALIZED TIME CONSTANT
MODELx.TC selection curves with tripping base level 106%.
1000
0
0.5
0.2
0.3
0.4
0.6
2000
2
0.8
1
DCS 500 Software Description
2400
2000
1500
1000
900
800
700
600
500
400
300
250
200
150
125
100
80
70
60
50
40
30
25
20
15
10
3
4

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