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Marke, I measure the hertz (along with everything else my Fluke would do) and it's spot on 60, which is correct for these motors. MikeHalloran, it is wired correctly. itsmoked and jraef, It's about got to be something like that. I'll try to come up with a scope and see what I find.

OK, it's a 10 HP Leeson Farm Duty motor. These have a built in Klixon overload button. The previous motor on this application did the same thing as the current motor, which is a new motor. The amperage was checked with a Fluke 189 with an inductive amp clamp. It has not given me any crazy...

What is going on when a single phase 240V electric motor running at 1/2 of full load amps, overheats and trips out? All connections are fine, I'm getting 233 volts directly at the motor. There is no voltage drop across any breakers or contactors. We've tried a new motor with the same results...

I believe VE1BLL and waross pretty much summed it up. I guess I'll just run the wires and be done with it. Just thought if there'd be some fairly simple solution it'd save me the bother. The ATS has a fused terminal block to connect into and the generator has a time delay built in so I'm good...

Actually, what I've got is a standby generator placed a considerable distance from the utility entrance. The automatic transfer switch at the utility automatically senses whether the utility or auxiliary are powered and switches accordingly. However there where no control wires run from it to...

Hi, I'm needing some sort of circuit to detect continuity between 2 wires for under $100. The two wires, when open circuited, can have anything from 240vAC to 0v. This circuit will operate a relay when continuity is detected. Any ideas?

Yes, you will need a wireless network adapter for the second PC. Some plug into a PCI slot on the motherboard, others just plug into a USB port. Plug your Internet connection into the router and then plug PC 1 into the router. Follow the directions that came with the router. Now go to the...

No, I'm positive it's AC. I get them from Essex-Brownell. Its the BC-216M-250 which is a 216-250 uF 250 VAC start capacitor. Maybe bad batch of capacitors? I might try a 330 V start on it, or something. See what happens I guess. Thanks for the input.

It's exactly the same. The 2 remaining are 216 uF 250 V. The third, which I attempted to replace, was identical. Frankly, it has me stumped. [hairpull]

Could you clarify "resonant condition"? Also, why don't the other 2 identical capacitors at least get warm or something? They seem to be fine. I guess I've just never run into anything quite like this.

Is there such a thing as having too much capacitance on a capacitor start motor? In other words, is it possible to have too many uF worth of start capacitors? What I have run into is a 15 HP 1ø 3450 RPM centrifugal fan. Some of the run capacitors where a bit corroded at the terminals so I...

Yes, this would be an induction motor. Thanks for the help.

Thanks, I think the idea of using a VFD to get it up to speed is probably the best idea. Skogsgurra, you say you had a device to get the proper speed and phase angle before switching directly to the line?

No, it's a 3ø motor being used as a rotary phase converter to generate 3ø. It is powered off 1ø using a stack of start capacitors to get it going. The final output is further tweaked with some run capacitors.

Is there any way to soft start a 60 HP rotary phase converter on 1ø? This is a more rural area and 3ø isn't available. The electric company here didn't really like the idea of starting a 60 HP motor without a soft start. There wouldn't be any load on the motor at startup, of course.