http://www.nnseek.com/alt.machines.cnc/Single-Phase-Motor-Circuits_s.html Search results for Single Phase Motor Circuits Sun, 03 Aug 2008 03:38:28 CEST http://www.nnseek.com/ http://www.nnseek.com/img/64.png 64 64 NNSeek http://www.nnseek.com/e/rec.crafts.metalworking/converting_miller_goldstar_300ss_to_single_phase_211212006m.html http://www.nnseek.com/e/rec.crafts.metalworking/converting_miller_goldstar_300ss_to_single_phase_211212006m.html circuit looks quite similar to some early 80's DC motor controls that I have been playing with. Same problem there: hard to ...quick look at what pins 19, 20, and 21 feed to on the circuit board. Faking out signal level voltages and ... looks good for trying to run it off a 220V single phase house circuit. The basic power design looks ...

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]]> Sun, 03 Aug 2008 03:38:28 CEST http://www.nnseek.com/e/rec.crafts.metalworking/converting_miller_goldstar_300ss_to_single_phase_211208678m.html http://www.nnseek.com/e/rec.crafts.metalworking/converting_miller_goldstar_300ss_to_single_phase_211208678m.html circuit looks quite similar to some early 80's DC motor controls that I have been playing with. Same problem there: hard to fake...quick look at what pins 19, 20, and 21 feed to on the circuit board. Faking out signal level voltages and ...that looks good for trying to run it off a 220V single phase house circuit. The basic power design looks ...

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]]> Sun, 03 Aug 2008 03:19:32 CEST http://www.nnseek.com/e/rec.crafts.metalworking/leeson_3_phase_motor_wiring_169702886m.html http://www.nnseek.com/e/rec.crafts.metalworking/leeson_3_phase_motor_wiring_169702886m.html single phase with all leads brought out to the outside like a 3 ... Converter Information" then to "Induction Motors and Phase Converters". There you will find some examples of start and run circuits that will be much safer ... 6) together" but that still doesn't seem right on this motor. I won't have a chance to look at it some more until ...

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]]> Sun, 02 Mar 2008 04:09:12 CET http://www.nnseek.com/e/rec.crafts.metalworking/rotary_phase_converter_versus_trying_to_run_a_vmc_straight_166130662m.html http://www.nnseek.com/e/rec.crafts.metalworking/rotary_phase_converter_versus_trying_to_run_a_vmc_straight_166130662m.html phase is only for the spindle motor and maybe the coolant pump. The CNC machines we have here, all have separate...be a major job to replace the spindle motor with single phase so I would look at the phase converter since you already have the motor. There are several circuits in the drop box and the parts will run to around 50-bucks and a couple of hours...

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]]> Tue, 19 Feb 2008 17:09:55 CET http://www.nnseek.com/e/alt.machines.cnc/rotary_phase_converter_versus_trying_to_run_a_vmc_straight_170933720m.html http://www.nnseek.com/e/alt.machines.cnc/rotary_phase_converter_versus_trying_to_run_a_vmc_straight_170933720m.html phase is only for the spindle motor and maybe the coolant pump. The CNC machines we have here, all have separate...be a major job to replace the spindle motor with single phase so I would look at the phase converter since you already have the motor. There are several circuits in the drop box and the parts will run to around 50-bucks and a couple of hours...

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]]> Tue, 19 Feb 2008 17:09:55 CET http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48262630m.html http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48262630m.html news.optusnet.com.au... Would it be practical to drive a single phase motor, by tapping into 2 of the wires in a 3-... voltage, which, in the case of delta, should be 240 volts. I suggested that if the motor required 120 volts that one must then select ... in commercial settings because it gives you the standard 120V circuits at the same time? I guess 208 Wye ...

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]]> Mon, 26 Feb 2007 03:04:51 CET http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48255462m.html http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48255462m.html news.optusnet.com.au... Would it be practical to drive a single phase motor, by tapping into 2 of the wires in a 3-phase... voltage, which, in the case of delta, should be 240 volts. I suggested that if the motor required 120 volts that one must then select the... common in commercial settings because it gives you the standard 120V circuits at the same time? I guess 208 Wye ...

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]]> Mon, 26 Feb 2007 02:28:12 CET http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48111078m.html http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48111078m.html news.optusnet.com.au... Would it be practical to drive a single phase motor, by tapping into 2 of the wires in a 3-... system? Jordan Yep----that's all single phase is, assuming you want 240 or 208 volts. If not, all you need... is 277 line to neutral, used in some lighting circuits. And that's exactly where the details were fuzzy . Thank you for correcting...

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]]> Sun, 25 Feb 2007 20:31:32 CET http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48080102m.html http://www.nnseek.com/e/rec.crafts.metalworking/_3_to_1_phase_48080102m.html news.optusnet.com.au... Would it be practical to drive a single phase motor, by tapping into 2 of the wires in a 3-phase system? Jordan Yep----that's all single phase is, assuming you want 240 or 208 volts. If not, all you need is ...line 3phase is 277 line to neutral, used in some lighting circuits. In a delta with one leg grounded, line to line and...

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]]> Sun, 25 Feb 2007 18:47:57 CET http://www.nnseek.com/e/alt.engineering.electrical/simple_fixed_frequency_ac_motor_speed_reduction_12366257m.html http://www.nnseek.com/e/alt.engineering.electrical/simple_fixed_frequency_ac_motor_speed_reduction_12366257m.html motor, which sounds like the descriptions I have read of induction AC... be the same? Well -- assuming that you replaced your single phase motor with a three-phase one, you would retain about the same torque ... or a higher current circuit. Or -- you could buy a three phase motor for the drill press, and a VFD -- an things...

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