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I have 2 RPC's in the shop? a 7.5 hp and a 10hp? ( only as i have a couple 4 hp bridgeport II mills and a 7.5 hp Prototrak Lathe. i understand that 2x the rated hp for startup is normal.? but as

Ken OK - I forgot to put DPCs in option 2. They are indeed a great alternative to real 3P. Just a bit pricy, although maybe, as you say all the mods, parts and time spent re-wiring the machine for a

Hi Roo, That’s not the way my workshop operates at all – none of my machines have been modified in any way (with the possible exception of changing the power supply plug!) I bought a

Digital phase converters are a stripped down circuit of a VFD/VSD. Only typically being fixed frequency, but lacking the more sophisticated pulse width modulation that enables a nearer approximation

I would disagree with that. The third option, as has been recommended by several of us is the Digital Phase Converter. A DPC (other names may be applied) is based on a digital inverter, but requires

It basically comes down to a simple choice. 1) Are you knowledgeable about electrics and can you confidently re-wire a machine (safely) - "Digital Inverter" 2) You are not confident or

Hi all, I find some of the video’s ‘interesting’ for a number of reasons. We know that ‘static’ phase converters give a mock 3 phase using a ‘phantom’ 3rd phase and that there

Here is another video expressing concerns about voltage imbalances between the 3 output legs of a DPS, Digital Phase

Can a single DPS used to power several machines at once?

I watched the video in the post above (#19977) but I watched it on YouTube where you can read all of the replies. In the replies there are definitely several sides to the argument and you have to

Hi Clive, Don’t have a BP in my workshop, but I have a Tom Senior, a Colchester Master (5HP) a Shaper and a cutter grinder. The Colchester, Shaper and Tom Senior all have built on work lights

There is a good video on single phase to three phase power, *Rotary Phase Convertor vs Digital Phase

Thank you Joe . Having powered my small hobby workshop for years with a RC and no problems. I wanted to understand ( now I finally got my hands on a BP) if there was a cheaper and better solution. I

so, being from the US i do not know your power situation. however, the BP was designed for 3 phase power.? the rotary phase converter provides the best substitute for that.? ?i would use a VFD if

Hi Clive - apologies for the delay in responding. I actually have 2 variable speed bridgeports - a 2HP and a 1.5HP that I am restoring (new bearings, paint, etc). The way I run my 2HP is with a Teco

The files section has a data pack for the Erskine drive unit including a typical circuit diagram, set up data and most component values. So far as I'm aware it has everything that is readily available

So this is the inside of a 10hp direct drives , plug and play unit, with the neutral magnetics.

Morning, thank you for so many inputs to my general concern on inverters and BP 2HP. Still following this path I have inevitably yet more questions for you all. First let me say that Direct Phased

Hey JAMES ,? they are pretty TINY as I recall ? What size Button heads will fit ?? So many of them have any even ~TINIER~ HEX trying to Drive them. I believe I have mostly given up on those

Another vote for the Drives Direct plug and play inverter. Well over 10 years on my 7 hp unit powering my whole workshop. 10 machines altogether running either singly or two at a time where the second