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).
⚫ When you need to suppress the high-order harmonic current or improve power factor at the power
side.
⚫ When you need to switch the phase advance capacitors.
⚫ 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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