You can buy a 1 to 1 (or 1:1) multi-tap isolation transformer sized to handle 260v and whatever volt-amps you intend to run. It will come pre-wired to give you the same output voltage as you supply, 260v in your case. But the multi-taps allow you to adjust the output voltage up or down depending on your needs. Choose the taps that give you a voltage as close to 240v as possible.
This is not a do-it-yourself project. The primary and/or secondary must be protected by over-current devices and it must be properly grounded.
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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.
For alternating current, and assuming the supply transformer is properly grounded, you will have 240 volts to ground. 480 volts; single phase will have Line1 and Line2, both with 240 to ground and 480 across both Lines : three phase will have Line1, Line2, and Line3, all will have 240 to ground, and 480 across any two Lines. Same is true for 240 volt service, 120 to ground and 240 across. 120 volt service is 240 volt service using ground as neutral.
P = E x I P = 240 x 2 P = 480 Watts
Voltage itself does not consume power; rather, power consumption is determined by the combination of voltage and current. If the power demand remains the same, a higher voltage system like 480 volts will require less current to deliver the same amount of power compared to a 240-volt system. So, in general, a 480-volt system would be more efficient in terms of power transmission compared to a 240-volt system.
You should not go above 240 volts for that type of motor.
if it's single-phase, 25,000 divided by 480.
It is simply a product of standardization.
For alternating current, and assuming the supply transformer is properly grounded, you will have 240 volts to ground. 480 volts; single phase will have Line1 and Line2, both with 240 to ground and 480 across both Lines : three phase will have Line1, Line2, and Line3, all will have 240 to ground, and 480 across any two Lines. Same is true for 240 volt service, 120 to ground and 240 across. 120 volt service is 240 volt service using ground as neutral.
P = E x I P = 240 x 2 P = 480 Watts
240/220 480 volts 3 phase
240, 480, 720 and so on.
Voltage itself does not consume power; rather, power consumption is determined by the combination of voltage and current. If the power demand remains the same, a higher voltage system like 480 volts will require less current to deliver the same amount of power compared to a 240-volt system. So, in general, a 480-volt system would be more efficient in terms of power transmission compared to a 240-volt system.
480
These voltages are both wye connection three phase voltages. The voltage difference comes from the primary three phase voltage supplies. 277 volts is obtained from 277 x 1.73 = 480 and 240 volts is obtained from 240 x 1.73 = 415. 480/277 volts is a common three phase American voltage. 415/240 volts is a European voltage. In Canada a common three phase voltage is 347/600. The 240 volts could also be a single phase voltage in North America derived from a split phase secondary on a distribution transformer that supplies 120/240 volts to homes.
240, 480, 720, 960, 1200, 1440 +240 . . .
240
The GCF is 240.
120, 240, 360, 480, 600, 720, 840 +120 . . .