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How do you get 380 volt from 220 3 phase?

Only with a 3 phase transformer.


How do you wire a 3 phase appliance with no 3 phase supply?

There is really no way to do this short of buying a phase converter with the proper kW rating to convert your single-phase power to three-phase. This route is seldom cost-effective.There is no 'wiring method' where you can simply hook up the wires and have it work.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicatorto insure the circuit is, in fact, de-energized.


What is the 11kv phase to earth voltage?

6350.8 volts AC rms. The phase to earth voltage is ( square root(3) ) x lower than the phase-phase voltage on a 3 phase system.


Is a 100 milliamp RCD more sensitive than a 30 milliamp RCD?

No, the 30 mA one is the more sensitive because it is the only one that will operate at currents between 30 and 100 mA.


What are the Advantage of three phase motors over single phase?

A 3 phase system needs only to use 3 or 4 conductors, as against 6 conductors if it were 3, single phase conductors The amount of copper used in a 3 phase is much less than what would be needed in a single phase system carrying the same current, this reduction in copper allows for weight reduction and cost savings. The power losses in a 3 phase system are much less than in a single phase system.

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