what is the range of power we can transfer for 3 phase 3 wire & 3 phase 4 wire system & why?
2007-10-07 19:15:24 · 9 answers · asked by deepak_8584 1 in Science & Mathematics ➔ Engineering
The answer is very simple. A 3-phase 3-wire system does not contain a neutral. This occurs when you have 3-phase loads such as motors that do not require a neutral. A 3-phase 4-wire system has a neutral. A neutral is required to obtain either 120 or 277 volts in a 3-phase system. Both of these scenarios can occur on wye and delta systems. I don't know what you mean by transferring a range of power.
By the way, kerry k is completely wrong. Every system needs a ground. Just so you know, I am the one who gave you a thumbs down.
2007-10-09 02:08:25 · answer #1 · answered by prime8 4 · 14⤊ 0⤋
How To Wire 3 Phase
2016-11-07 04:31:01 · answer #2 · answered by kelm 4 · 0⤊ 0⤋
This Site Might Help You.
RE:
what is the diffrence between 3 phase 3 wire & 3 phase 4 wire system in electrical system?
what is the range of power we can transfer for 3 phase 3 wire & 3 phase 4 wire system & why?
2015-08-06 17:37:25 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Three phase 3 wire is often called a 'delta' connection since the load(s) are distributed between each pair of phases. The 4 wire systems are also called 'Y' systems since the loads are distributed between each phase and a 4'th 'common' phase. The 4 wire system is intrinsically a bit safer since the common phase can also be made electrically neutral (ground).
Doug
2007-10-07 20:37:03 · answer #4 · answered by doug_donaghue 7 · 3⤊ 0⤋
If the Generator is 3 phase 3 wire, then how we get neutral?
2015-09-03 00:18:09 · answer #5 · answered by muhammad akram a 1 · 0⤊ 0⤋
3 Phase 3 wire ( Red/Yellow/Blue - colour code ) electrical cable are usually of very high voltages - 275,000 volts and above are sent overhead high structure towers from the generation ( hydro dam / coal etc ) to the other end of the country usually in grid system.to the industrial / commercial area.
Here the voltage is stepped downed to lower voltages , this time having the neutral cable - thus 3 phase 4 cable usually to 132 / 66 /33 /11 Kv. for heavy industrial consumers.
This power is further stepped down to 440volts - 3 phase with neutral and Earth cable to small and medium industries.
and is later tapped to a single phase of 240 volts with and neutral and earth cable to majority of our homes.
Some rich and famous homes having a couple of a/c , swimming pool have the place wired to 3 phase 5 cable supply, for equal balancing of supply.
2007-10-07 20:15:43 · answer #6 · answered by jjshri ram 3 · 2⤊ 1⤋
L1,L2,L3 -3phase 3 wire for balanced Load (3phase x 220v or 380V or 400V , running a 3 phase load like motor,Machine supply 3 wire is enough .3phase 4 wire(L1,L2,L3, NEUTRAL) can be used for balanced load or Un balanced load or both In addition of above load single phase Load (110V or 220V )can be used like lighting, window AC etc, the 4th wire is called Neutral (Star point).In other way Generation (11KV or 15.75kv )- transmission 230KV-400KV ) with 3 wire enough in HV side - .In utility point 4 ( 230 , 380 or 415 V)wire required in LVside.I hope I covered Ur doubt if you need further pm me.
2007-10-08 00:59:34 · answer #7 · answered by ricky414 5 · 3⤊ 0⤋
The cheapest way is to buy a 415/230 V 1 ph transformer of required capacity
2016-03-22 14:41:28 · answer #8 · answered by Anonymous · 0⤊ 0⤋
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2015-08-04 16:20:02 · answer #9 · answered by Katrinka 1 · 0⤊ 0⤋
A ground wire.
2007-10-07 19:19:27 · answer #10 · answered by Anonymous · 1⤊ 10⤋