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Does this generator have any value?

04/23/2007 4:22 PM

Dear Sirs,

I would like to know if there's any practical value to a generator that I've acquired (it was given to me).

HERE ARE THE SPECS:

NoBrush generator.

by Georator Corporation

Manassas ,VA

KVA: 2.5

Volts: 115/230NOM

Amps: 21.8/10.9

Cucles: 45/65

Phase: 1

Degrees rise (C): 40

RPM: 1075/2150

~diameter: 13"

~ length: 19"

~weight: 200+ pounds

~shaft diameter: 1 3/4"

I have a 3000 Watt gasoline contractor's generator that weighs practically nothing compared to this Georator.

Other than the scrap value of the copper in this beast, or possibly as a large boat anchor, what good is it?

I think it was used in a test lab before I acquired it.

Might it have some speciial application characteristics?

Any insights into this thing would be greatly appreciated.

johnjohn

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#1

Re: Does this generator have any value?

04/24/2007 1:07 AM

Here is the manufacturer's URL: http://www.georator.com/

Try eBay. Or the Salvation Army.

How old is it? Does the shaft turn? Is it oily? Does it smell burnt?

When it was new, it produced cleaner electricity more reliably than a portable contractor's generator; the trade-off was heavier machinery that cost more. If it works now, someone may have a use for it. If it doesn't, you have been denominated the agent of disposal.

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#2

Re: Does this generator have any value?

04/24/2007 1:45 AM

This may be a 400 cycle generator for military aircraft use. You might find it very valuable to someone who is setting up some test facilities for this 400 cycle stuff. The copper will get you $2/pound = last resort.

Put it on ebay stores (not auctions) and price it at $1500 and take offers.

http://cgi.ebay.com/ebaymotors/GEORATOR-30-018-Brushless-Permanent-Magnet-Generator_W0QQcmdZViewItemQQcategoryZ26442QQihZ015QQitemZ250075134649QQrdZ1QQsspagenameZWD1V

http://cgi.ebay.com/Georator-Frequency-Converter-400Hz-Model-30-001_W0QQitemZ250039060543QQihZ015QQcategoryZ78192QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

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#3

Re: Does this generator have any value?

04/24/2007 10:00 AM

Hey John John, can you find a serial or model number? I think after Amps you meant Cycles 45/65 right? This could be a great generator for someone that is after a fixted location genset. Just becuase it's heavey and old doesn't mean that it's worthless or not as good as new stuff. Like someone else pointed out, there is a chance that it is much more efficient than newer lighter models. Typically effeciency is on the opposite end of the seasaw of wieght or cost. What it's worth is more dependent on what a person wants it for.

Where abouts are you located?

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#4
In reply to #3

Re: Does this generator have any value?

04/24/2007 11:50 AM

Hey juba-jabba,

Model: 32-037, serial number: 36436

Georator has been sitting on my shop floor (unmoved) for about 7 years. I think it was practically new when I got it. Shaft turns freely, no smell, etc. The shaft has a 5" steel flange coupling for power source to hook to. Seems like the guy that gave it to me said there was a large 60 cycle motor that drove this thing. That's why I wondered if there must be a special application for it (Could it have been a secret test site that had the generator power the motor that drove the generator that.....).

I am it the Atlanta, GA area. Yes, Cycles: 45/65. What do these unusual cycles mean anyway? This question to anyone who would like to respond.

Thanks to all

johnjohn

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#6
In reply to #4

Re: Does this generator have any value?

04/24/2007 12:04 PM

http://www.georator.com/Sitemap.php

ask them for details.

32-037 might be no longer made?

But they will have data

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#5

Re: Does this generator have any value?

04/24/2007 11:54 AM

Is it a gasoline engine or a diesel? The very lightweight genarators used for construction etc. are typically gas engines - pretty decent, but the lightweight engine blocks don't last so long and dont stand so much abuse. The heavy diesel crankcases, on the other hand, can be very expensive! If you are looking for reliability, though, they are the way to go. They will take a lot more abuse, but if you can be gentle on them they will serve you well, close to forever!

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#7
In reply to #5

Re: Does this generator have any value?

04/24/2007 2:19 PM

Sleddriver,

I thik you missed the point! I'm not asking about the gasoline contractor generator that I have. I only mentioned it for reference since it is fairly lightweight and has about the same output as the monster Georator.

johnjohn

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#8

Re: Does this generator have any value?

04/24/2007 11:34 PM

Since it does not have brushes, it may be a permenant magnet type

You can tell if it is permenant magnet type (which I doubt) by rotating it by hand with the output leads shorted to gether. It will be extremely hard to turn when shorted and easy when the leads are open.

I expect that it is a self excitation induction type with diodes (and regulators) mounted on the rotor. (the generator field section is on the rotating member) If you can see windings on the rotor, it is of this type.

Either way (if it is not burned) it is a hard to find item and has considerable value.

With the addition of a prime mover, it becomes a stand by generator and by varying the speed you can vary the frequency. This can be used as a test generator.

Some manufactures that make over seas 50 cycle equipment would use this to test their product on 50 cycle current common to other parts of the world.

The weight is naturally heavy because more iron is required for the lower speed and frequencies and the numbers indicate that it is a 4 pole slow speed (1800 RPM at 60 hZ) machine.

Note: At 60 Hz the speed will be 1800 RPM

At 50 Hz the speed wiil be 1350 RPM

At max rated speed (2150 rpm) the frequency will be 71.66 Hz

At Min rated speed (1075 rpm) the frequency will be 35.83 Hz

This machine has inherent stability and hard to find in todays market.

I am not registered so I will not be able to see your comments.

I have re-wound generators of this type..

Don Jeerings

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#9

Re: Does this generator have any value?

04/25/2007 9:07 AM

I agree with guest it was probably used as a test generator, the large construction being for low temperature rise and overall stability. No brushes would indicate self excitation with diodes built into the rotor windings this method conflicts somewhat with output stability unless it was used on constant loads.

With such large construction it was probably powered up by an electric motor , I would not want to use it as a portable unit.

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Users who posted comments:

Anonymous Poster (1); aurizon (2); bubbapebi (1); garth (1); Johnjohn (2); juba-jabba (1); Sleddriver (1)

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