Under water motor 115 Volts on 240 Volts test No 3

[Joseph9536]

Add salt to the water!

[judiccc]

where are the fishies?

[troll2nite]

any motor is under water if you put it under water.. .

[Balarick]

interesting use of water to contain the motor.

[makinbac0n]

New modern trolling motor. Kills um catches the fish and cooks them to! Silent and deadly all in one. lol

[mtx80cr80]

Its a typical microwave refrigerating fan for the magnetron.

[RODALCO2007]

@mtx80cr80 No, this was actually a washing machine pump motor, but the micro fan motors are the same type.

[SpeakerFreak95]

what was it attached to?

[MrTpengineer]

Nice thing about these motors is no brushes to get ruined underwater :) Bearings probebly not :(

[FalloutFanBoy101]

Hey guys i really need your help. I have this 330V 700uF capacitor out of a vintage camara flash and i was wondering if i could charge it in under 20 seconds with (number) of disposable camara flash curcuits. or if i could use a (number) of electric fly swatters?. what would be the better choice? (if u help i will sub)

[rushymoto]

Indeed. This is an induction motor. The speed is fixed to the Freqency of the supply. However. Putting more voltage in it will cause more amps to flow and produce more torque until the saturation of the iron core happens. If you cool it enough you can up the voltage but given that the wire wound on the bobbin is coated with an insulating varnish I doubt the water will have an immediate affect. Unless it is distilled water or even mineral oil.

[13071991ali]

Nemo where are you ?

[ThePunkfisk]

Fiishy, come fishy fishy. xD ..

[dannyjaar]

And now put youyr finger in the water

[destroyersoueu]

Now you can start a submarine production

[Geoffr524]

These experiments are cool, just wished I was still in electronics.

[hvguy]

you know a motor has a saturation voltage.... as in it can go over voltage... but to a certain point... anything after that will be in-efficient, as in it will be creating heat and not going any faster... but actually might slow down.

transformers are the same way,

[RODALCO2007]

@hvguy Correct. The B/H curve will be saturated.

The speed is controlled by the frequency in this type of motor.

[hvguy]

@RODALCO2007 not tryin to be a DB or anything but basically you can put 480vac at 50hz and itll spin at the same speed?

i thought the frequency could be 50/60 at 120vac and thats it... since nobody really uses anything more than 60hz, i highly doubt that thing would stay together for more than about 20 seconds above water at anything higher than about... 140vac.. lol

[RODALCO2007]

@hvguy Great discussion here.

On a shaded pole motor or any type of induction motor the frequency determines the speed.

If 480 Volts was applied 16 times !! the power was dissipated in the winding and it would probably burn out immediately.

On a series motor ( a motor with brushes, like from a vacuum ) the voltage controls the speed of the motor.

[DeusMalleus]

@RODALCO2007 So... do they make Ferrite core motors? Since Ferrite has less losses then Silicon Steel at higher freqs, I'd think it would allow higher rpm.

[RODALCO2007]

@DeusMalleus Not too sure, laminated motor are reliable.

I think eddy currents will cause excess heating in ferrite core motors.

High RPM motors are usually series wound brushed motors.

[bjtaudio]

@hvguy For the fun of it you could use a large audio amplifier, with a signal generator and a transformer to step up the amplifiers output voltage, to a few hundred volts, by increasing the frequency and voltage you will get it to spin faster, and harder to destruction even more fun.

[Nivicoman]

@RODALCO2007 The motors in my console stereo for the reel to reel and turntable are shaded pole but even they run at synchronous speed as a true synchronous type with a permanent magnet armature. Different pulley and pinch roller were supplied with it to accomodate 50 or 60 Hz and the power transformer is multitapped 100/115/210/240 volts primary for worldwide use.

[67tr876]

cool

[FoamPackingPeanuts]

So it just seized up and shorted out?

[daewooparts]

lol cool , i did a 12 volt dc motor underwater plugged in while it was being microwaved at the same time, the microwave made it speed up and go crazy, but it survived until i remicrowaved it out of the water :P

[Driv3th3hiv3]

no you didnt

[Geoffr524]

@daewooparts Really cool stuff, about the microwaving items that are running while underwater. I have been thinking of how to do this. like maybe putting a hole in the bottom of the microwave to power the experiments. Just wished you had some videos of your experiments online. Maybe we can get Dovetastic to try some things underwater while running, while being microwaved, then microwaved without water.

[cheetawolf]

@FoamPackingPeanuts i think that the coil blew out, and the motor stopped once no more current was going through the coil.