5.5 hp motor identification 2

[jak1964]

Greetings from Sunny Kenya!

I have just unearthed (from a disused store) a 5.5 hp motor It's 3-phase and 1445rpm but that is all the info i can glean from the nameplate. Could someone please enlighten me on any specs of this motor based on the nameplate (which I have attached)

Many thanks in advance!

 

[Artisi]

From what can be seem of the motor condition around the name plate - is it even worth worrying about it - junk heap might be a better proposition.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

 

[jak1964]

junk heap is an option... but not until I'm sure that it's dead... It's a 143T frame and rather heavy! Going to clean it up, coz the intention is to use it as an idler motor in a single- to 3-phase configuration/conversion.

 

[LittleInch]

does anyone not know how to google stuff nowadays???

Given your location it would seem that a South African company matches your motor.

This might help you

http://www.regalbeloit.co.za/download/MAR_flyer.pdf

Look under the 4 pole 132S4 line....

http://www.regalbeloit.co.za/

I suspect the 143/765 is the serial number. Call them up and see if they have records / data sheet for that motor - many companies keep them for a long time

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[jak1964]

Thanks LittleInch! Much appreciated!

 

[ScottyUK]

Looks an IEC 132S frame size, with is consistent with the 5.5kW rating. As for the details on the plate, my guesses are:

132S - frame size
415V - line voltage
10.9A - phase current
5.5kW - power output
38mm - shaft diameter
4 - number of poles
50 Hz - frequency
F - insulation thermal class

The partly obscured value is likely the power factor, probably 0.83. The rest is manufacturer-specific.

In my patch of the world and if that is representative of overall condition it would probably go in the skip: a new one will cost about the same as a decent overhaul.

 

[jak1964]

First, a big THANK YOU to both LittleInch and ScottyUK for their pointers and tips...

after some elbow grease the motor doesn't look that bad... but was curious to find out if this motor still has life in it before connecting it to any power point (am a bit of a distance from reliable workshops and technicians...this comes with a price, as if i ask any 'technician' "is this motor cooked?" he will say "completely! but for $X,XXX I can rewind it for you and make it work"...yet he may know that it isn't, and i end up paying for nothing!)

So i found a multimeter and tried it at the three points as shown in the attached photos..which gave me the same readings.. is this a good sign?

Again, i don't mind sounding as blonde (or should that be blond?) as possible with my questions, if through the answers I end up learning something!

 

[LittleInch]

Only one photo, but wouldn't make much sense to me. You might be better off starting a new thread in the electric motors forum,

Something along the lines of "How to test a motor"

and provide a link to this post.

Or you could just wire it up via a suitable breaker and turn it on?? If it's three phase it might go backwards at first.

Let us know how you get on.

LI

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[ScottyUK]

I don't know the specific values of winding resistance for that motor, but you should see equal values for each winding. Any major deviation is definitely a bad sign. I expect that some of that 1.7 Ohms is the test leads.

Do you have three or six wires from the windings, and if there are six do you know whether they are connected with three linked together (star wound) or in three pairs (delta wound). Regardless of that, you should find the resistance between any two phases matches the resistance between any other two phases. It would help if you could do an insulation test of the windings to the frame and between windings. A test voltage of 250V would be ideal although the machine should withstand 500V if that is what you have available.

 

[mikekilroy]

skottyuk, ps; i dont know any more info anyone could have compiled off that nametag. it is EVERYTHING anyone could possibly need to use that motor. very good & complete reply= 28 0ct 18:05

http://www.KilroyWasHere<dot>com

 

[ScottyUK]

Thanks Mike.