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Installation of power factor
When used with a reactor connected in series, the power factor improving correction capacitor can absorb
improving capacitor
harmonic currents.
Transformer multi-phase
Use two transformers with a phase angle difference of 30° as in
operation
effect corresponding to 12 pulses, reducing low-degree harmonic currents.
Passive filter
A capacitor and a reactor are used together to reduce impedances at specific frequencies. Harmonic currents
(AC filter)
are expected to be absorbed greatly by using this technique.
This filter detects the current in a circuit generating a harmonic current and generates a harmonic current
Active filter
equivalent to a difference between that current and a fundamental wave current to suppress the harmonic
(Active filter)
current at the detection point. Harmonic currents are expected to be absorbed greatly by using this technique.
Description
PRECAUTIONS FOR USE OF THE CONVERTER UNIT
Power supply harmonics
- and - combinations to provide an
3
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