Hi gentlemen,
Walking by the trash bin at work the other day I noticed this Pm permanent magnet brushless DC motor. I picked it up and found that it was trashed cause the electronics went to magical smoke.
Brand name: EG&G Rotron (ametek)
Model: M64D500-2043-3FIC-3221RF-CCW
Voltage: 74 VDC; 12.0 amps; 1250 RPM; max amb: 85°C
Here is how it looks after removing the smoked electronics that was located on the right side were is the small size shaft.
I did some test on it, here is the set up. The output of each phase was rectified trough a three phases rectifier. The rpm was measured using a tachometer that could be seen on the left.
Here is a pic of the DVM reading.
And here results of open volt testing for diffrent rpm. The rpm was measured using a tachometer
The resistance measured between each coil using this meter is 0.6 ohm. Cogging is quiet impressive...
Here are the questions.
Is this one any good ? Or should I simply return it from were I took it
My intention is to use it to charge a battery for my remote hunting/fishing camp. The system will be small, It will be use only for some lighting (4 to 5 12 V cfl lights), 3 reading lights and a car radio.
In your opinion what rotor size (blades) would be a good match ?
Direct coupled or belt driven ?
barnac
