Eliminate one wire from the 3 phase 208 volt and install a 240/250 volt 2 pole breaker . but the oven has to be rated for 240 volts check the nameplate on the oven or it will not work.
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Some three phase resistive load devices will allow the device to be used on single phase. The wiring diagrams will be on the nameplate of the device. It usually involves the repositioning of jumpers to create new connections within the device to keep the resistive coil currents equal. This is to provide equal heating throughout the oven. Other wise there would be cool spots where the third phase leg resistive coils had been taken out of the circuit.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS
5000 volt
Check for a blown fuse in one of the phase legs.
Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?
Use a transformer.
You can not change it. 440 volt is by design. However you run it with 220 single phase supply, but it would run far lower power.
Try plugging it in
No, a single-phase oven cannot be wired to a three-phase circuit without a transformer. The electrical systems are incompatible and may result in damage to the oven or the circuit. It is recommended to use the appropriate circuit or consult with a licensed electrician for proper installation.
All my experience with rotary phase converters have been in converting 240 volt single phase into 240 volt three phase. They all were hard wired into their respective systems, so my answer is no.
5000 volt
Check for a blown fuse in one of the phase legs.
no
Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?
Yes
Use a transformer.
You can not change it. 440 volt is by design. However you run it with 220 single phase supply, but it would run far lower power.
You should not need a wiring diagram. If the generator has a star point (wye) connection then the phase voltage to ground (star point) is 277 volts. 480/1.73 = 277.
Yes by using a 3-phase transformer. The size depends on how much power has to be converted.