Chapter 7 Optional AccessoriesCFP2000
7-11
7-4 AC Reactor
AC Input Reactor
Installing an AC reactor on the input side of an AC motor drive can increase line impedance, improve
power factor, reduce input current, and reduce interference generated from the motor drive. It also
reduces momentary voltage surges or abnormal current spikes. For example, when the main power
capacity is higher than 500 kVA, or when using a switching capacitor bank, momentary voltage and
current spike may damage the AC motor drive’s internal circuit. An AC reactor on the input side of the AC
motor drive protects it by suppressing surges.
Installation
Install an AC input reactor in series with the mains power to the three input phases R, S & T as shown
below:
Wiring an AC input reactor
Following table shows the standard AC reactors specification of Delta CFP2000:
380V–460V / 50–60 Hz
Model 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 #
Normal
Duty
Light
Duty
Normal
Duty
Light
Duty
Normal
Duty
Light
Duty
Normal
Duty
Light
Duty
Normal Duty Light Duty
VFD007FP4EA-41/-52
/ VFD007FP4EA-52S
0.75 1 1.7 3 2.72
3.6
14.918 8.102 24.863 13.503 Yes DR003A0810* DR003A0810
VFD015FP4EA-41/-52
/ VFD015FP4EA-52S
1.5 2 3 4.2 4.8
5.04
8.102 6.077 13.503 10.128 Yes DR003A0810 DR004A0607
VFD022FP4EA-41/-52
/ VFD022FP4EA-52S
2.2 3
4 5.5 6.4 6.6 6.077 4.05 10.128 6.75 Yes DR004A0607 DR006A0405
VFD037FP4EA-41/-52
/ VFD037FP4EA-52S
3.7 5 6 8.5 9.6 10.2 4.05 2.7 6.75 4.5 Yes DR006A0405 DR009A0270
VFD040FP4EA-41/-52
/ VFD040FP4EA-52S
4 5 9 10.5 14.4 12.6 2.7 2.315 4.5 3.858 Yes DR009A0270 DR010A0231
VFD055FP4EA-41/-52
/ VFD055FP4EA-52S
5.5 7.5
10.5 13 16.8 15.6 2.315 2.025 3.858 3.375 Yes DR010A0231 DR012A0202
VFD075FP4EA-41/-52
/ VFD075FP4EA-52S
7.5 10 12 18 19.2 21.6 2.025 1.35 3.375 2.25 Yes DR012A0202 DR018A0117
VFD110FP4EA-41/-52
/ VFD110FP4EA-52S
11 15 18 24 28.8 28.8 1.35 1.01 2.25 1.683 Yes DR018A0117 DR024AP881
VFD150FP4EA-41/-52
/ VFD150FP4EA-52S
15 20
24 32 38.4 38.4 1.01 0.76 1.683 1.267 Yes DR024AP881 DR032AP660
VFD185FP4EA-41/-52
/ VFD185FP4EA-52S
18.5 25 32 38 51.2 45.6 0.76 0.639 1.267 1.065 Yes DR032AP660 DR038AP639
Figure 7-14
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