Temco rotary phase converter review

Here is an interesting video on that:. The starting capacitor needs to be removed from the circuit, once your idler motor-generator gets going. You may also include run capacitors to balance voltages between the three legs:. You can add more run capacitors in parallel for bigger units.

The same goes for the start capacitors, which could be wired in parallel as well. Working with electricity is dangerous and is not recommended if you are not a qualified licensed electrician. The video of the installation in the instruction manual in PDF is also included. Before you get started, check your local electrical codes. Disconnecting the power before you start working is a must.

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I know Temco has been around for quite a few years. I have never used, seen, or talked to anyone that has used one of their RPC's.

If it were my money I would absolutely have no problem purchasing the Temco RPC at a considerable discount. I would venture the Temco is as good as ANY brand of phase converter and I would would snap up a deal on one in a heartbeat. The price of their RPC's suggest they use quality contactors and quality capacitors rated for well above the required voltages As for the flowery marketing language I just find it funny!

If I were to buy a 40hp phase converter to run Seven 3 phase motors in my shop I would add a 3 phase panel and run 3 phase wiring through out the shop. This would be costly. By contrast all of my VFD's plug into my existing 1 phase v wiring. When comparing costs I would factor in the 3 phase distribution wiring.

If I decide to move a machine I don't have to worry about whether a 3 ph outlet is close My shop has a very generous amount of v 1 ph outlets. My father was an accomplished electrical engineer and I very comfortable pulling my own wire and rewiring my own machines. A RPC will not require any rewiring of your machines. Just plug them into your new high dollar 3 phase outlet and press the Start button The first rule of VFD's is that there are no switches or other controls allowed between the VFD and the 3 phase motor it is running.

This also means that a VFD is required for every 3 phase motor on a multi motor machine. Rewiring a machine for a VFD is quite straight forwards and this board is a great resource It seems like it was about the early 's that someone reported high frequency spikes from VFD's can cause arcing through the bearing of motors with un-insulated armatures leading to premature bearing failure. In SOME conditions when turning off a power transistor done 60 times a second for 60 hz power a very short microsecond spike in voltage can occur which can in rare cases cause a arc through the bearings in old motors with un-insulated armatures.

The current associated with the microseconds spike is pretty much nonexistent so it has no effect on the electrical portions of the motors. Since that report the characteristics of power transistors and the controlling electronics have progressed immensely!

I have several old 3 phase machines dating back to the 40's and 50's with specialized irreplaceable motors that I run on VFD's without concern. For example one of my favorite and most used woodworking machines is a 7. It is a beauty and a pleasure to work with! If the motor on it were ever toasted the whole saw would be worthless. I have no qualms about running it on a VFD. Quite the contrary, with the soft start of the VFD the initial inrush current is a small fraction of what it would be starting the motor with a RPC or 3 phase electrical service.

It reduces belt changes and allows you to tweak speed changes on the fly. I also bucked the single phase voltage down to before the converter. G8KeaPoR , Philabuster liked this post. Yeah I checked them out. I know the age old adage of you get what you paid for but I just can't pay 4k for one of their converters right now. Though I am still hunting around for a used PP just in case one comes in my price range. Their generators are made in the US by Baldor. We've incorporated their SmartBoost convertors customer supplied in one of our solutions.

A quick look at their website suggests they are half the price of Phase Perfect. Smart-Boost I have minimal first hand experience of these, but given the customer, they should be OK. G8KeaPoR liked this post. Works very well with my shop and would recommend them. Give them a call.