Delta VFD007FP4EA-41 - AC;DC Reactor

Chapter 7 Optional Accessories |CFP2000 Series
7-6
7-4 AC/DC Reactor
AC Input Reactor
When the AC Motor Drive is connected directly to a large-capacity power transformer
(500kVA or above) or when a phase lead capacitor is switched, excess peak currents may
occur in the power input circuit due to the load changes and the converter section may be
damaged. To avoid this, it is recommend using a serial connected AC input reactor (3%) at
the AC Motor Drive mains input side to reduce the current and improve the input power
efficiency.
Installation
An AC input reactor is installed in series with the mains power to the three input phases R S T as
shown below:
Connecting an AC input reactor
AC Input Reactor
380V~460V/ 50~60Hz
Type KW HP
Rated Amps of
AC Reactor(Arms)
Max. continuous
Amps (Arms)
3%
impedance(mH)
5%
impedance(mH)
Built-in
DC reactor
3% Input AC reactor
Delta part # (Note 1)
Normal
Duty
Light
Duty
Normal
Duty
Light
Duty
Normal
Duty
Light
Duty
Normal
Duty
Light
Duty
Normal Duty Light Duty
007 0.75 1 1.7 3 2.72 3.9 13.344 8.102 22.241 13.502 O N/A DR003A0810
015 1.5 2 3 4.2* 4.8 5.46* 8.102 6.077 13.502 10.127 O DR003A0810 DR004A0607
022 2.2 3 4 5.5* 6.4 7.15* 6.077 4.05 10.127 6.752 O DR004A0607 DR006A0405
037 3.7 5 6 8.5* 9.6 11.05* 4.05 2.7 6.752 4.501 O DR006A0405 DR009A0270
040 4 5 9 10.5 14.4 13.65 2.7 2.315 4.501 3.858 O DR009A0270 DR010A0231
055 5.5 7.5 10.5 13* 16.8 16.9* 2.315 2.025 3.858 3.375 O DR010A0231 DR012A0202
075 7.5 10 12 18* 19.2 23.4* 2.025 1.174 3.375 1.957 O DR012A0202 DR018A0117
110 11 15 18 24* 28.8 31.2* 1.174 0.881 1.957 1.468 O DR018A0117 DR024AP881
150 15 20 24 32* 38.4 41.6* 0.881 0.66 1.468 1.101 O DR024AP881 DR032AP660
185 18.5 25 32 38* 51.2 49.4* 0.66 0.639 1.101 1.066 O DR032AP660 DR038AP639
220 22 30 38 45 60.8 58.5 0.639 0.541 1.066 0.9 O DR038AP639 DR045AP541