CrocSee Micro 3 Phase AC Mini Hand Brushless Motor Generator Model Experiment Teaching Aid for Children and Educators

Excelente!

This thing is smaller than I expected, but if you look at the Amazon page carefully and compare with the LED, you can estimate its size. Or, look at the photo here. I tested it this evening with another product bought on Amazon (a 3-phase motor controller from Sydien), and was able to get the CrocSee Micro 3 spinning nicely. But only after feeding the controller with 12 to 15VDC. Lower than that and I could not get it to spin up and sync with the Sydien controller pictured. Used as a generator, it also works, of course. Comes with an LED plugged into two of the three pins on the connector. If you spin the shaft quickly with your fingers, it nicely lights up the LED in a pulsed fashion. Not terribly bright, but it seems to have a lens to focus and is fine for indoor observation. Unloaded, I measured about 2V AC (peak) with a quick finger-spin. With my DMM, I seem to read around 2K Ohms per winding - but that varies (maybe due to AC noise picked up by the coils from the room lights?). So don't expect much current from the thing used in generator mode. 2V and 2K is 1mA at this speed. 10 times faster and I would expect maybe 10 mA - which seems consistent with the kind of numbers I got when monitoring the full current when operated as a motor (about 30 mA at 50 RPM). Of course Safety should always be considered. You don't want a big high-powered, high voltage, high current device for teaching and experiments. (All my motor experiments on the CrocSee Micro 3 used a low-voltage (< 15V), wupply with current limit) Your mileage may vary of course - but for a nice little motor/generator intended for experiments and as a teaching age, it satisfied my needs - especially at the price !

Conforme à mes attentes

good quality, very small & perfect for small application

Great Generator