ABB PQFS Installation, Operation And Maintenance Instructions page 41

Power quality filter
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WARNING: Consult your cable manufacturer for the applicable cable manufacturer
data.
Table 19: Allowed cable current for different cable sections noting the skin effect and typical
Cross section
Nr of
parallel
cables
[mm²]
[AWG]
16
6
25
4
35
2
50
1-1/0
70
2/0
95
3/0
120
4/0
150
300MCM
185
350MCM
240
500MCM
300
600MCM
16
6
25
4
35
2
50
1-1/0
70
2/0
95
3/0
120
4/0
150
300MCM
185
350MCM
240
500MCM
300
600MCM
Remark: The highlighted values in
filter ratings. Note that in 4-wire systems, the neutral may have to carry up to 3 times
the line current rating of the filter.
cable manufacturer data – Network frequency 50Hz
Copper
Derating
Rated
due to
current
paralleling
[Arms]
1
1
100
1
1
130
1
1
160
190
1
1
1
1
230
1
1
285
1
1
325
1
1
365
1
1
415
1
1
495
1
1
550
2
0.8
160
2
0.8
208
2
0.8
256
2
0.8
304
2
0.8
368
2
0.8
456
2
0.8
520
2
0.8
584
2
0.8
664
2
0.8
792
2
0.8
880
Table 19
Manual Power Quality Filter PQFS  Electrical design and installation 41
Reduction
Allowed
factor
current
[Arms]
0.997
100
0.993
125
0.987
158
0.975
185
0.955
220
0.93
265
0.904
290
0.877
320
0.844
350
0.804
390
0.768
420
0.997
159
0.993
205
0.987
250
0.975
290
0.955
350
0.93
420
0.904
470
0.877
510
0.844
560
0.804
630
0.768
675
refer to cable sizes that correspond to typical
Aluminum
Rated
Reduction
Allowed
current
factor
current
[Arms]
[Arms]
0.999
75
0.997
100
0.994
120
0.989
145
0.98
180
0.965
220
0.95
250
0.93
285
0.908
325
0.876
385
0.843
425
0.999
120
0.997
160
0.994
192
0.989
232
0.98
288
0.965
352
0.95
400
0.93
456
0.908
520
0.876
616
0.843
680
75
100
119
142
176
210
238
265
295
335
358
120
160
190
229
282
340
380
424
472
540
573

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