squeeze
Plastic
- Joined
- Jan 20, 2012
- Location
- Connecticut, USA
I have several VFDs running single-phase 230v to 3-phase 230v ... works like a charm. I have an RPC generating 3-phase 230v, with a transformer to step that up to 440v (multiple taps) ... works like a charm.
It was suggested to me to use a single-phase transformer to step up my voltage from 230v (single-phase_ to 460v (single-phase) and then convert to 3-phase with a VFD. I'm having trouble finding a 460/480volt VFD that takes a single-phase input. The tool I'm looking at is a woodworking jointer of 5 hp. The startup resistance is relatively low. In reality I would only be using the slow start feature of the VFD, but of course the phase conversion also.
The recommended VFD was the GE AF60-LP. Yet when I look at the manual for that or the AF300 series, they indicate 3-phase input only. I used the manual to construct a "part number" but get zero results searching for that configuration. I'm also seeing in the Teco Manual the following ..."***Do Not Apply Single Phase Input Power to these Models" ...
Hoping I'm wrong. I'm a woodworker and maintain machines for that purpose but I have found folks in this forum exceptionally knowledgeable and helpful with respect to these types of questions. I apologize if this question has been answered too many times to count.
It was suggested to me to use a single-phase transformer to step up my voltage from 230v (single-phase_ to 460v (single-phase) and then convert to 3-phase with a VFD. I'm having trouble finding a 460/480volt VFD that takes a single-phase input. The tool I'm looking at is a woodworking jointer of 5 hp. The startup resistance is relatively low. In reality I would only be using the slow start feature of the VFD, but of course the phase conversion also.
The recommended VFD was the GE AF60-LP. Yet when I look at the manual for that or the AF300 series, they indicate 3-phase input only. I used the manual to construct a "part number" but get zero results searching for that configuration. I'm also seeing in the Teco Manual the following ..."***Do Not Apply Single Phase Input Power to these Models" ...
Hoping I'm wrong. I'm a woodworker and maintain machines for that purpose but I have found folks in this forum exceptionally knowledgeable and helpful with respect to these types of questions. I apologize if this question has been answered too many times to count.