The answer to this question depends on which country you are asking about!
USA, Canada and many other countries run a 60 Hz supply service i.e. alternating current at 60 cycles per second.
Countries in Europe and many other world areas run a 50 Hz supply service i.e. alternating current at 50 cycles per second.
For more information as to which standard frequencies are used in different countries around the world, see the answers to the Related questions and also see the Related linksshown below.
In Europe they have both single phase and three phase.
Answer for USA, Canada and countries running a 60 Hertz supply service.The US runs 240V single phase in almost all residential applications.It just so happens that the 240V is center tapped to make 120V/240V split phase, but that is still a single phase application.For more information about the supply services in other countries, please see the answer to the Related Question shown below.
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.
115V60HZ1PH means 115 volts, 60 hertz (cycles per second), single phase. This is the standard format for North American residential electrical power.
The choice of single or three phase depends on the available supply. But a three-phase full wave rectifier provides 6 pulses of DC per cycle, while a single-phase full-wave rectifier provides only two. That makes the output DC easier to smooth.
Yes, the standard single-phase electrical system in the US is 110/120 volts at 60 Hertz.
The three phase voltage is 380 the hertz is 50
Answer for USA, Canada and countries running a 60 Hertz supply service.A single phase service runs about ten dollars an amp. Permits and inspections included. Connection fees to the electrical utility company are the responsibility of the homeowner.
For a given load, a three-phase system requires around 75% of the volume of copper required by a corresponding single-phase system and, so, is more economical. A three-phase supply also delivers power more or less continuously, whereas a single-phase supply delivers power in pulses. Finally, three-phase motors are self-starting and physically smaller than single-phase machines of the same power rating.
3 phase motors are more efficient than single phase motors. That is why many factories use 3 phase, because they save on their electricity bills. However, it is more expensive to supply the wiring to bring in 3 phase electricity; so it is not used in residences.AnswerThere are three main reasons for generating three-phase electricity. The first reason is that, for a given load, a three-phase supply uses less volume of copper (around 25% less) and is, therefore, more economical than a corresponding single-phase supply. The second reason is that it delivers continuous energy, rather than in a series of 'pulses', which is the case with single phase. The third reason is that a.c. motors are self-starting and more compact than a single-phase motor of similar power rating.Incidentally, three-phase residential supplies are common in some countries, because service conductor size is lower, therefore less expensive, than the corresponding single-phase conductors.
60 Hertz is the frequency that the welder should be connected to, to work as it is designed to.
These are two completelydifferent systems and are incompatible with each other. Right from the manufacturer's specifications of the breakers down to the physical size of the electrical panels the breakers fit into.
Single phase.
In Australia most power is generated in 3 phase the split down to single phase wen it reaches individual residences 3 phase power is more efficient to produce. most single phase motors have switching gear and capacitors to help kick a motor on when it starts because single phase power doesn't have enough power to turn over a motor. 3 phase motors are generally simpler and require no starting gear ( normally cheaper to build) Most workshops have 3 phase machinery for the extra power it prvides Some motors can be 2 phase (rare) as well.
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