Bantry Bay Vineyard “Power harmonics .. problem solved” Margaret river Western Australia
They needed to upgrade the irrigation to 3 x 22kw pumps operated via one of the existing VSDs to control pressure and needed to utilise the full capacity of the supply transformer , we offered the R/75/480U rotary converter to convert the 480VAC single phase supply to 415 volt three phase to supply a “off the shelf pump system” with standout results in the form of efficiency, voltage & current asymmetry with none of the effects of harmonics apparent.
How we achieved these results:
- Six stage VolTrak system, that ensures high efficiency through good voltage asymmetry throughout the load spectrum.
- Floating pole rotaries ( FPRs ) coupled with modified rotors ensure:
1) High efficiency
2) Low circulating currents
3) Lower power costs
4) Low harmonics throughout the load spectrum
5) High power factor
- NO high speed electronic switching devices used to switch capacitors.
|Supply voltage no load:||481volts|
|Supply voltage full load:||481volts|
|Full load current @ 465volt single phase:||150amps|
Output voltage asymmetry
|Pump 1 current reading||Pump 2 current reading||Pump 3 current reading|
|L1 34amp||L1 37amp||L1 34amp|
|L2 32amp||L2 32amp||L2 34amp|
|L3 34amp||L3 36amp||L3 34amp|
Bantry Bay revisited 2013
After 13 years of operation and a replacement of the pump controller the POLYPHAZ converter in still in use visit our YouTube site to review: