Chapter 7 Optional AccessoriesC2000 Plus
7-17
7-4 AC / DC Reactor
AC Input Reactor
Installing an AC reactor on the input side of an AC motor drive can increase line impedance, improve
the power factor, reduce input current, increase system capacity, and reduce interference generated from
the motor drive. It also reduces momentary voltage surges or abnormal current spikes from the mains
power, further protecting the drive. For example, when the main power capacity is higher than 500 kVA, or
when using a phase-compensation capacitor, momentary voltage and current spikes 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 between the main power and the three input phases R S T, as
shown in the figure below:
Wiring of AC input reactor
Applicable Reactors
200V–230V, 50/60 Hz / Heavy Duty
Model HP
Rated
Current
(Arms)
Saturation
current
(Arms)
3%
impedance
(mH)
5%
impedance
(mH)
Built-in
DC
reactor
Input AC
reactor
Delta part #
Weight
(kg)
Heat
Dissipation
(W)
VFD007C23A-21
1 5 9 2.536 4.227 No DR005A0254 1.2 21
VFD015C23A-21
2 8 14.4 1.585 2.642 No DR008A0159 1.7 37
VFD022C23A-21
3 11 19.8 1.152 1.922 No DR011A0115 2.5 38
VFD037C23A-21
5 17 30.6 0.746 1.243 No DR017AP746 3.2 40
VFD055C23A-21
7.5 25 45 0.507 0.845 No DR025AP507 3.8 61
VFD075C23A-21
10 33 59.4 0.32 0.534 No DR033AP320 4.5 60
VFD110C23A-21
15 49 88.2 0.216 0.359 No DR049AP215 6.5 70
VFD150C23A-21
20 65 117 0.163 0.271 No DR065AP162 8.5 83
VFD185C23A-21
25 75 135 0.169 0.282 No DR075AP170 10 150
VFD220C23A-21
30 90 162 0.141 0.235 No DR090AP141 11.5 120
VFD300C23A-00
VFD300C23A-21
40 120 216 0.106 0.176 Yes DR146AP087 22 110
VFD370C23A-00
VFD370C23A-21
50 146 262.8 0.087 0.145 Yes DR146AP087 22 110
VFD450C23A-00
VFD450C23A-21
60 180 324 0.070 0.117 Yes DR180AP070 26 120
VFD550C23A-00
VFD550C23A-21
75 215 387 0.059 0.098 Yes DR215AP059 30 150
Figure 7-6
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