Variable Frequency Drives (VFDs) In Our Equipment

If your vessel is wired single phase or you have marginally sized generators, or if you want to almost completely eliminate voltage fluctuation when compressors start, we can install Variable Frequency Drives (VFDs) in our equipment.

The VFD reduces the start-up inrush and will greatly reduce any brownout, generator lag or flickering in your TV when the compressors start. 

The typical inrush (millisecond start-up amperage) is about 5-7 times the running amps, however, with a VFD the compressor frequency slowly ramps up to the 60 HZ speed so the inrush is typically about 1.3 times the running amps.  You can also manually program in lower or higher frequencies as well to accomplish running on lower amps or more output at higher amps if you need to, but of course, you will lose or gain proportional performance by doing so.

Flagship Marine strives to provide the most simple, trouble-free and durable equipment available, and frequency drives are not in keeping with the KISS principle (Keep It Simple, Sailor) that guides our component selection and design, however, there are applications that warrant these excellent products.