Yes, assuming the panel is 460 volt, three phase. You will need to supply a 2-pole breaker of the proper current rating. The breaker installs on any two adjacent phases, such as A-B. Any two phases of 460 volt, three phase power will yield 460v single phase.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator
to insure the circuit is, in fact, de-energized.
Yes, if you have a step down transformer.
It is theoretically possible that a 460 delta source could run a 230 star motor, if it is connected in star, but the applied voltage would be on the high side, 266 volts, and that might be too much for the motor.
460 is what you go between 2 277v to ground wires
In Europe they have both single phase and three phase.
No A intermediate switch can not be used to change three phase to single phase.
Any load that needs three legs from a three phase system can not be considered single phase. Single phase from a three phase system only needs a connection to two legs.
Phase to phase, two wire is classed as single phase. If the voltage from the phase to phase match the device's operating voltage, then connecting the device will allow it to operate.
Yes, as long as you use only one phase of the 3 phase system. If R & Y gives 460 volts, use R & Y. This not a good approach though.
My first thought is this is probably a corner grounded delta system, but I'm confused by your voltages. If this was a 460v (L-L voltage) ungrounded or corner grounded system, the phase to ground voltage is meaningless, but the phase to phas voltage will be 460v all around the delta. If you have a 460v system and you're only seeing 230v, there's something wrong.
Single phase.
There is no such thing as a two phase instrument. There is only single phase and three phase. You can only have: single phase/ one pole single phase/ two pole three phase/ three pole
Yes, there is a difference between single phase and three phase circuits.
In Europe they have both single phase and three phase.
By having a transformer with 3 phase input and single phase out put
First of all, a 150 HP 460V 3-phase motor only draws around 170A, so two of them would only draw 340A, not 800. 340A at 460V equals almost 300,000 watts (or 300kw), and the generator would need to be sized a little bigger than this to start such big motors.
working of single phase preventor
Single phase inherently requires less equipment (it's cheaper). Three phase motors are more efficient than single phase.
3 phase /sqrt(3) * 30 degree phase shift = single phase.