Chapter 3 Electrical Wiring｜VP3000
135
3-7 Harmonic Interference Prevention
Connection of AC Reactor
In order to suppress rapid changes in current and high-order harmonic current, AC reactors are required.
While suppressing the high-order harmonic current, it also improves the power factor of the drive input
side.
For the following situation, connect an AC reactor to the input side (primary side).
âš« When you need to suppress the high-order harmonic current or improve power factor at the power
side.
âš« When you need to switch the phase advance capacitors.
âš« When you connect the drive to a larger capacity power transformer (600 kVA and above).
Wiring of AC Reactor
Figure 3-105
NOTE: Refer to Section 10-3-1 AC Reactor for selection.
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