Electric Motors

[Hemsby]

A general question regarding machine motor identification.

Might sound strange, but are all single phase 240v machine motors without brushes “INDUCTION” or is this a generalization :?:

 

[memzey]

Brushed motors are "universal". Induction motors have no brushes so I think it's a fairly general rule. I have seen recently some cordless power tools moving to a brushless system. Not sure if they are induction in the classic sense with capacitors for single phase etc. but I'd be interested to find out too.

 

[Monkey Mark]

Brushless and induction are slightly different.

Brushless uses permanent magnets in conjunction with the winding to create movement. Mostly DC.

Induction has no magnets. They rely on separate coils to create the magnetic fields. Though slightly more complex in 3 phase systems.

 

[Myfordman]

Mark,

You might think you sig file is clever but it does not get my details correct so it is a bit of a chocolate teapot.

 

[Hemsby]

Mark,

You might think you sig file is clever but it does not get my details correct so it is a bit of a chocolate teapot.

???????????????????????

 

[Limey Lurker]

Brushed motors are "universal". Induction motors have no brushes so I think it's a fairly general rule. I have seen recently some cordless power tools moving to a brushless system. Not sure if they are induction in the classic sense with capacitors for single phase etc. but I'd be interested to find out too.

These cordless tool motors are similar to the latest model aircraft and car motors in that they are 3-phase motors. The single-phase battery supply is converted to AC by the speed controller and connected to the motor with 3 supply cables (wires), changing over any two of which will reverse the direction of rotation.

 

[Monkey Mark]

Mark,

You might think you sig file is clever but it does not get my details correct so it is a bit of a chocolate teapot.

I wouldn't say I thought it was clever, just a little different. And it works for me on several different platforms.

 

[Monkey Mark]

Mark,

You might think you sig file is clever but it does not get my details correct so it is a bit of a chocolate teapot.

Oh look at that. My signature has now been changed for me. With no warning or explanation. How very kind. Trivial.

 

[clk230]

Mark,

You might think you sig file is clever but it does not get my details correct so it is a bit of a chocolate teapot.

Oh look at that. My signature has now been changed for me. With no warning or explanation. How very kind. Trivial.

I thought it light hearted fun , was I missing something offensive about it ?

 

[Monkey Mark]

Mark,

You might think you sig file is clever but it does not get my details correct so it is a bit of a chocolate teapot.

Oh look at that. My signature has now been changed for me. With no warning or explanation. How very kind. Trivial.

I thought it light hearted fun , was I missing something offensive about it ?

Well I must be missing it too.

 

[Hemsby]

Well Im totaly lost. I must have missed something in translationd and it was my post #-o

 

[Monkey Mark]

Well Im totaly lost. I must have missed something in translationd and it was my post #-o

I had a little thing in my signature that shows the operating system, ip afresh etc of whomever was looking at it. Someone criticised it and now my sig has been edited.
It was just a little fun, or so I thought.