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Why 3 phase ac systems is preferred to 4 phase?
3 phase system has more power than a single phase system
What are some advantages of 3-phase power over 1-phase power?
There are several advantages of 3-phase power over single phase power. First, with 3-phase power, more power can be transferred with the same amount of wire (meaning the amount of copper used in all of the conductors transferring that power) as with single or 2-phase power. Also, power is transferred more "evenly" with 3-phase power because the "next peak" is closer than it is with single and 2-phase power. The 3-phase motors run more smoothly than those run on fewer phases. Also, there are motor design considerations (one being control of the direction of rotation) regarding the motor that make 3-phase power more attractive. Use the link to the Wikipedia article on 3-phase power and skim it. It isn't long and it is quite readable.
Is it possible to conduct a phase 4 clinical study as a comparative study?
yes is it possibal
Do I need more then 70 kVA 3 phase power supply for a 4 sunbeds in a tanning salon?
You don't need three-phase power; tanning beds run on single-phase. You've got enough amps.
Is it possible 2 make 4 phase or 5 transformers What are the conditions for making?
Math and Algebra!!
Give three reasons why AC three-phase system is used universally in the electricity public utility supply?
1. 3 phase is more efficient for electric motors. 2. Electric motors start easier with 3 phase. 3. Less current draw 4. Less heat is produced that is waste.
Why you generate only 3 phase power not more than that?
Because 3 phases are sufficient. For the vast majority of applications of electric power there are no scientific, engineering, business or economic reasons to justify spending the extra money which would be needed to generate electricity in 4 phases or more.
Is it possible to connect 3 phase 440 V without neutral line to the machine having 3 phase 4 wires with neutral line?
yes
How can I change 2 wire 220 1 phase to 4 wire 220 single phase to run an electric range?
Just replace the cord. Your manual has instructions.
How do you convert a 0.37kw 4 pole 3 phase motor to single phase?
The motor cannot be altered to work on single phase power. You will either have to put in a new single phase motor or use a phase convertor box. Do a google search for phase convertor - you will find plenty.
What is 4 to the zero power?
Any number, with the possible exception of zero, to the zero power is ' 1 '.
4 most important factors in an electric circuit?
electromotive force, current, resistance, and power
