Ac/Dc Reactor - Delta MS300 Series User Manual

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7-4 AC/DC Reactor

Installing an AC reactor in the input side of AC motor drive can increase line impedance, improve
power factor, reduce input current, and reduce interference generated from motor drive. Also momentary
voltage surges or abnormal current spikes are reduced. For example, when the mains power capacity is
higher than 500 kVA, or a switching capacitor bank is used, momentary voltage and current spikes may
damage the AC motor drive's internal circuit. An AC reactor in the input side of the AC motor drive
protects it by suppressing surges.
Installation
An AC input reactor is installed in series with the mains power to the three input phases R S T as
shown below:
115V / 1ø Normal duty / Heavy duty
Model
VFD1A6MS11ANSAA
VFD1A6MS11ENSAA
VFD2A5MS11ANSAA
VFD2A5MS11ENSAA
VFD4A8MS11ANSAA
VFD4A8MS11ENSAA
230V / 1ø Normal duty / Heavy duty
Model
VFD1A6MS21ANSAA
VFD1A6MS21ENSAA
VFD1A6MS21AFSAA
VFD2A8MS21ANSAA
VFD2A8MS21ENSAA
VFD2A8MS21AFSAA
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AC reac tor
(input s ide)
Power inputs
Connecting an AC input reactor
115V / 50~60 Hz MS Series Normal Duty / Heavy Duty Input AC Reactor
Saturation
Rated Current
ND / HD (A )
rms
Current (A
1.8 / 1.6
2.7 / 2.5
5.5 / 5 8.25 / 9.6
230V / 50~60Hz MS Series Normal Duty / Heavy Duty Input AC Reactor
Saturation
Rated Current
ND / HD
ND / HD (A )
rms
Current (A
1.8 / 1.6
3.2 / 2.8
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Chapter 7 Optional AccessoriesMS300
Input/ Output
ND / HD
Reactor (mH)
)
rms
2.7 / 3.2 5.857
4.05 / 5 5.857
3.66
Input/ Output
Reactor (mH)
)
rms
2.7 / 3.2 14.031
4.8 / 5.6 5.857
7-9
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M
Input Reactor DC Reactor
Delta Part # (mH)
DR005D0585 5.857
DR005D0585 5.857
DR008D0366 3.66
Input Reactor DC Reactor
Delta Part # (mH)
DR004D1403 14.031
DR005D0585 5.857
Email: info@deltaacdrives.com
DC Reactor
Delta Part #
DR005D0585
DR005D0585
DR008D0366
DC Reactor
Delta Part #
DR004D1403
DR005D0585