1.5hp pmdc motor as generator

[Kilted]

Currently on offer at ebay.  It has been there for about a month.  I'm sure it will sell some day.  There were two lathe motors larger than this that sold recently.

I'm really curious how good of a generator this motor would make.  To get real power output, would it need to be geared up?

Catalog Number: T56S2014A

Horsepower: 1.50

Armature Voltage: 180 Volt DC

Fields: Permanent Magnet DC

Hertz: 60  (I'm sure this is a typo, unless there is a speed control box.)

Phase: DC

Full Load Amps: 7.0

RPM: 1750

Frame Size: LF56HCZ

Rating: 40C AMB-CONT

Insulation Class: F

Enclosure: TEFC

Base: C Face with Rigid Base

Mounting: F12 Top Mount Box

Shaft Dimension: 7/8 Dia X 2 Long with Keyway

http://cgi.ebay.com/Reliance-PMDC-Motor-1-5-HP-1800-RPM-180V-DC-TEFC-1-1-2_W0QQitemZ270167919953QQih



Z017QQcategoryZ26226QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

--  Brandy

[ghurd]

It would not need geared up.  It'll start 12V charging at about 135RPM.

Looks like a nice motor.  Seems more than a bit steep at $500 for 'as-is No Returns' on eBay?  I expect it'll be there for a while unless someone needs that exact motor.

G-

[kurt]

it would be good for a 24v system with about an 8' prop or so as long as the shaft size is large enuff you would have to look up a frame chart to be shure of that before buying....... but personaly i would not pay $500 for it you can get a simular one much cheeper if you keep looking.

[kurt]

frame chart http://www.electricmotorwarehouse.com/NEMA_frame_info.htm

[Kilted]

Thanks for the comments.  I was just wondering how well this would work.  No intention of purchasing, a bit pricey and no place to fly it.

Ok so it would start making power into 12v at low rpm.  How many amps could you actually draw it is only a 7.0 armature?

It would seem to me a better match would a gear up of 3:1 to get the voltage in the range of a SMA Windyboy and use it for direct grid tie?  Then you stand a chance of using the full 1.5hp rating.

--  Brandy

[bsafe]

How does one determine a workable blade  dia for this size motor for 12v and 140v charging? How would the windyboy work with this motor?