11-50
11.13 DC reactor
Installing a DC reactor at the DC terminal of the frequency converter provides the following
advantages:
• Improves the input current waveform distortion caused by the rectifier in the frequency
converter while maintaining continuous rectified current.
• Suppresses instantaneous current surges and prevents related overheating
phenomenon caused by the rectifier and voltage regulator components due to
instantaneous current surges.
• Reduces harmonic interference problems generated by the frequency converter.
• Improves and increase power factor and reduces AC component pulses at the DC
terminal.
• Compared to AC reactors, the size of DC reactors are smaller and the costs are also
lower.
Table 6.13 DC reactor list
Model DC reactor
V HP
Rated current
(A)
HD/ND
Inductance value
(mH)
Rated current (A)
200V
1
Ø /3 Ø
1 5/6 2.9 10
2 8/9.6 2
15
3 11/12 1.2 20
200V
3
Ø
5.4 17.5/22 0.78 35
7.5 25/30 0.57 45
10 33/42 0.39 65
15 47/56 0.29
85
20 60/69 0.23 105
25 73/79 0.2
120
30 85/110 0.14 165
40 115/138 0.12 210
50 (built-in) 145/169 0.1
200
60 (built-in) 180/200 0.08
260
75 (built-in) 215/250 0.08
390
100 (built-in) 283/312 0.08
390
125 (built-in) 346/400 0.065
520
150 (built-in) 415/450 0.05
800
400V
3
Ø
1 3.4/4.1 10.2 6.5
2 4.2/5.4 7 8.5
3 5.5/6.9 4.2
11
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