Unknown motor 5

[Jwprice84]

I have an old motor that has been rewound incorrectly, I have no information on the motor does anyone recognise the type of motor it could be from the pictures, I have been told it may possibly be an old mod motor off of a ship

 

[RedSnake]

It's a long time since I started a motor that needed a Y/D, directly or not connected correct.

But I guess the principle is the same, that there ain't enough power, so the sound it creates is the same as for the torque becoming to high, before the circuit breakers tripp.

In this case the sound that comes in when starting and then it picks up speed with a winning noise, going up and then down and then it is just what I call bearing sound.

/A




“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[Jwprice84]

Is the sound file with or without the blade?
How is the motor started?
And are the sound file taken when the motor is in ordinary place or is it been tested at work bench?

The sound file is with the blade and installed in its usual location.

An electrician replaced the original switch when I moved into the unit as I had to have new wiring anyway

The old switch :

New switch :

 

[Jwprice84]

The star connection should be delta is interesting, that sounds like it answers the problems I'm having, I will try and look into it further