12 & 18 Pulse Converter Kits
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12 / 18 Pulse Converter Filters (Type PCK and Type HMP12) 480 volts 60Hz
Capacitor free harmonic filter solutions. Upgrade most 6-Pulse drives with our exclusive 12 or 18 Pulse Converter Upgrade Kit, or supply your 12-pulse drive with our economical Hybrid 12-pulse filter.
APPLICATION: Multi-pulse (12 & 18 pulse) filter solutions are typically demanded for applications that involve a very high percentage of motor drive loads as compared with the total facility load. This is especially useful in the HVAC/R, municipal water and wastewater industries where lower harmonic distortion is demanded. The following chart demonstrates the typical harmonic current distortion associated with 6, 12 and 18 pulse drives.
| Typical Harmonics Contributed by Various Multi-pulse Converters (at full load) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| THD-i | 5th | 7th | 11th | 13th | 17th | 19th | 23rd | 25th | 29th | 31st | 35th | 37th | |
| 6-pulse | 35-80% | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| 12-pulse | 10-15% | √ | √ | √ | √ | √ | √ | ||||||
| 18-pulse | 5-6% | √ | √ | √ | √ | ||||||||
Typical Input Current Waveform: 12-pulse |
Typical Input Current Waveform: 18-pulse |
CONVERT 6-pulse to 12 or 18-pulse
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Converter Upgrade Kits (Type PCK)
Illustration of 18-Pulse Upgrade Kit
Arteche offers a convenient kit that upgrades a typical 6-pulse drive to either 12 or 18 pulse, provided that a series connection may be made in the drive's dc bus.
Converter Upgrade components: phase shifting transformer with isolated and phase shifted secondary windings; power electronics panel with additional rectifiers necessary to increase the pulse number.
Also available with parallel connected bridge rectifiers.
Illustration of 12-pulse Hybrid Filter
Filter for 12-pulse drives
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12-pulse phase shifted power source (Type HMP12)
For drives that are already configured as 12-pulse, Arteche offers a convenient and economical means of providing the phase shifted 6 winding power source. This filter includes a phase shifting transformer to supply one bridge rectifier plus a reactor to supply the other bridge rectifier.
