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[ 3 ] AC reactors (ACRs)
Use an ACR when the converter part of the inverter should supply very stable DC power, for example,
in DC link bus operation (shared PN operation). Generally, ACRs are used for correction of voltage
waveform and power factor or for power supply normalization, but not for suppressing harmonic
components in the power lines. For suppressing harmonic components, use a DCR.
An ACR should be also used when the power source is extremely unstable; for example, when the
power source involves an extremely large interphase voltage unbalance.
Figure 6.10 External View of AC Reactor (ACR) and Connection Example
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