Ronk Type 4D-AS Rotoverter Automatic Start Rotary Phase Converter for 1.4-42kVA, 480V Motor
The ROTOVERTER is the only rotary converter that can simulate the current balancing capability of our ADD-A-PHASE, thanks to its patented “tapped windings”. The ROTOVERTER tap adjustments give you control over all three phases for balancing currents. Other manufacturers rotaries convertors actually allow control of only two of the three phases. This balancing capability is especially important for motors that operate for extended periods at or near full load, and for higher power factor motors. Examples of such loads would be grain dryer or other fan motors, pumps, or continuously operating compressors. For total loads up to 120 HP, the Type C ROTOVERTER is recommended for multiple loads of varying horsepower ratings. The Type D ROTO-VERTER, available for total loads up to 42 HP, works for applications where a single load (of either a single or multiple motors) is to be operated. It can also be used to power non-motor loads. Both types are available in either 240 or 480 volt units.