5.5 hp motor identification
5.5 hp motor identification
(OP)
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!
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!





RE: 5.5 hp motor identification
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.)
RE: 5.5 hp motor identification
RE: 5.5 hp motor identification
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.pd...
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.
RE: 5.5 hp motor identification
RE: 5.5 hp motor identification
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.
RE: 5.5 hp motor identification
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!
RE: 5.5 hp motor identification
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.
RE: 5.5 hp motor identification
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.
RE: 5.5 hp motor identification
www.KilroyWasHere<dot>com
RE: 5.5 hp motor identification