dslreports logo
site
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
43
share rss forum feed


shdesigns
Powered By Infinite Improbabilty Drive
Premium
join:2000-12-01
Stone Mountain, GA
Reviews:
·EarthLink
·Comcast
·Atlantic Nexus
reply to whizkid3

Re: Variable speed drive

said by whizkid3:

said by shdesigns:

A new VFD and 3P motor will cost you about $300.

It could be a good idea, except that not too many people have 3-phase power to their residence.

You missed the point, the VFD converts single-phase power to 3-phase. Actually it is a 3-phase PWM signal. Since it is generating the phases, frequency and PWM, it had a lot of control over the motor.

My VFD, has ramp up/down, PWM frequency, current limits, braking and failsafe options.
--
Scott Henion

Embedded Systems Consultant,
SHDesigns home - DIY Welder


whizkid3
Premium,MVM
join:2002-02-21
Queens, NY
kudos:9
said by shdesigns:

You missed the point, the VFD converts single-phase power to 3-phase.

Cool. How about a link?

Zach1
Premium
join:2006-11-26
NW Minnesota
The Eaton/Cutler-Hammer NFX9000 series VFD offer single-phase input up to 2HP and the M-Max series offer single-phase input up to 3HP. Allen-Bradley, Square-D also offer small VFDs with single-phase input.

Link to relevant Eaton/CH catalog pdf:

»www.eaton.com/ecm/idcplg?IdcServ···06_TAB02
--
Zach