I have an older table saw that i bought for $25.00 at a garage sale. the problem is that it is 240 volt/single phase, and i do not have , nor can i run 240 to my garage ( not enough free space in my breaker box) . it is a craftsman saw. can it ( the motor ) be converted from 240 volt to 110 volt ,and if not, where might i find a 110 vol;t motor to fit it?
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go e-bay and type in electric motors in the search section
what you will be looking for is an electric motor with the following properties
rpms the same as your motor or within 150 rpms
shaft size the same as yours and the foot mount measurements for the 4 bolts and distance from the face to the drive puller so that it aligns with the rest of the saw
In a traditional North American residential electrical panel (120/240 volt, single phase), installing a single width or single pole circuit breaker, you would expect to read 120 volts from the breaker terminal screw to either ground or neutral. A double width or double pole breaker would provide 120 volts from either of the breaker terminal screws to ground or neutral AND it will provide 240 volts BETWEEN the TWO breaker terminals.
A single-width circuit breaker case that contains two handles is NOT a two pole circuit breaker (these are called "tandem" or "1/2 size" breakers). This is because a single width breaker engages only one "line" in the panel. A double width breaker will engage 2 "lines" as a triple width breaker would engage 3 "lines" of a 3 phase panel. A single wide breaker can not physically engage more than 1 "line" so it will never be able to pass 240 volts.
You must install a double width / double pole breaker to safely supply a 240 volt circuit / device.
My limited research indicates this heater is designed for USA electrical systems. That would mean single phase, 240/208 volts, 60 Hz. The drawings I reviewed shows a 2 pole, 240 volt breaker feeding each heating circuit. That means no "neutral wire" goes to the heater and therefore no 120 volts is needed. This is good. Kenya's system is single phase, 240 volts, 50 Hz. The heater should work reasonably well on the African system. Connect the power just like you would in the US.
Single phase 220 volts actually uses two 110 phases to deliver 220 volts. So the failure was caused by something else. The motor winding insulation may have been cracked or previously damaged by high current. The solution is to replace the motor or have it refurbished (not cheap).
There should be a label showing the change, one wire gets switched over to a different screw, all motors are different, but all basically the same, some will not switch. It would be just as easy to run a new line to your motor and it will be right, single circuit, 220 volt,?amp, no worries., Your motor as is will not run in 110 volt mode at all. Hope this helps.
If the motor is using a single phase supply there will be a capacitor which could have reduced in value- open.
If so try and use a capacitor in parallel to see if the motor works-- in this case the motor might hum and get heated up.
Hi I have the same problem - I think it may be the capacitor by the motor which has failed - I have just ordered a spare which I hope will fix the problem. Check the capacitor for any signs of damage ie. explosion!!