The only other parts you need to make this kit into a rotary converter is a enclosure and a Hp idler three phase motor with a rpm of 17XX ( 4 pole ) or 34XX ( 2 pole ) rated at 230 volt. They are solid state and have reliable info that many can actually give variable speed from a few hundred rpm to double the motors rated rpm." The resistor is 15,000 ohms and rated for 2 Watts. I know a fellow who runs 3 CNC lathes (about 15HP each) on one 100HP rotary converter with no line filtering at all.
Quite often machine tools will have overload protection already installed.The information in this article is from a presentation I did for the Houston Home Metal Shop Club.
The doorbell transformer providing the control voltage is connected to the shop's lighting circuit. The start button is normally open (NO), the stop button is normally closed (NC). November 29, 2000
Balancing the legs on the rotary converter is an issue, although I think not totally critical."
Use a Motor-Start capacitor designed for use with alternating current (AC). The only downside is that they are still, in effect, a static converter, and will result in a power loss to the motor. Please note that EPO and Ace Electronics are local surplus electronics suppliers in Houston, hopefully you will have such a supplier on your area.1. 3. $4,250.00. 2. Motors run from a static converter will not deliver full name-plate power, but this is not generally a problem in the home shop. If the resistor is not used, the relay will chatter when the power is disconnected. I assume you are going from 1 phase to 3 phase. Any small transformer will work. None of the starter circuits contain overload protection. Two push-button switches are used. Collection of american rotary phase converter wiring diagram. What voltage--same on both sides? We believe it was because of imbalance in the 3 phase legs, and resolved the problem by installing a slightly higher range limit switch. There is a device called an inverter which will give the ability to vary the motor speed which is useful for drill presses, shapers, and milling machines but is only good for one machine, whereas the rotary will run several. Our heavy duty and high quality units ship complete from our manufacturing facility. In addition, the 2 single phase lines are used to energize the induction generator; in turn the induction generator produces the 3rd line of power (voltage). What capacity do you need (how many HP is your load)? Ronk Roto-Phase 50hp phase converter. A static converter will give you about a 25% power loss on your 3 phase motor, whereas a rotary will maintain full hp rating. Cheaper to buy a used one and have an electrician hook it up properly.