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Yes, they can share a neutral
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If 45 amps loads and 20 loads drawing in a two phases services entrance how much current carried neutral wire?
are supplied by circuits on oppsite legs of the service entrance panel . if each load draws 30amps ,what is the current flow in the neutral wire
What cause current on the neutral line in a three phase?
Current on neutral in a multi phase system is caused by imbalance between the phases. Question: Are you talking about neutral or ground? The two are very different. Although neutral is grounded, it is expected to be a current carrying conductor, so current on neutral is normal, so to speak. Ground, on the other hand is a protective circuit that is not supposed to have any current on it at all.
What is the purpose of a neutral conductor in 3 phase?
If you want to have a 3-phase service with a neutral then one way to get it is to connect the incoming three phases of a standard 3-phase service to a transformer whose secondary windings are connected in what is called a "star" (also known as a "Y" or "wye") configuration which has a neutral point at the center of the "star" or "Y".Then, to get a single-phase service, you can use just one phase and the neutral. This results in about half the voltage - actually it's 1 / 2./'3 (1 divided by the square root of three) - that you'd get across any two phases of the incoming 3-phase service.NoteA three phase service on its own does not have a neutral line. The voltage difference is measured between the phases. (No voltage can be measured between any of the phase lines and a neutral because there is no neutral line.)Any electrical equipment which uses a 3-phase service exactly as it is delivered by the power generator / utility - that is, without a neutral line - are connected in what is known as "delta" connection.
Single or Three phase Ac Circuit?
Both are possible. Single phase requires a neutral (or two phases, such as "Single-phase 240 V) to return the un-used voltage on the "down side" of the generating cycle. Three phases equal "each other out" on the up and down side. One phase generating positively while the other two are at various points of positive and negative on the sine wave to balance each other out.
How do you take a single phase output by giving 2phase input in transformer?
You are not really connecting two phases to the primary of the transformer; you are connecting one phase. In delta configuration, each phase is actually the connection of two legs, AB, BC, and CA. Even though you are connecting two legs to the transformer, there is only one phase involved. In star configuration, however, each phase is the connection of one leg to neutral, AN, BN, and CN. In star, you would only use one of AN, BN, or CN to connect to the transformer's primary winding. Star configuration is preferred, and is actually used in the transmission/distribution system, because in delta, loss of one leg takes out two phases. Star configuration, however, would not be preferred if your local distribution was based on a non-centered neutral, such as a quadraplex connection providing split phase simultaneously with three phase. (120/240-240/3) The neutral in that case is not at the center of the star triangle - it would be at the center of one of the phase pairs.
What is the meter reading if power line is one from the grid and one from earth ground?
The meter is reading one phase from the utility. For U.S. residential power, one phase is typically 117 volts. Two phase power is typically delivered to residences, and if you measure across the two phases, skipping the ground, the meter will read 234 volts (double the single phase). Within a residence most of the outlets and lights are wired to one or the other of the two phases and neutral (which is connected to ground at the entry) to provide 117 volts. The plan tries to balance the usage on the two phases. Some special outlets or appliances may be wired to the two phases instead of one phase and neutral. In those cases 234 volts is provided (commonly revered to as "two-twenty", even though the voltage is normally higher). From the utility side, the two phases are the two sides of a center tapped transformer secondary winding, and the neutral is the center tap. The high voltage primary side is single phase, and is connected to one of the phases of a three phase high voltage distribution. In many neighborhoods the three phases are separated at the edge of the neighborhood and single high voltage phases are wired to different portions of the neighborhood, so it is common to only see only two or one (in regions where the actual earth is used as the other conductor) high voltage wires feeding the residential transformer.
If 45 amps loads and 20 loads drawing in a two phases services entrance how much current carried neutral wire?
are supplied by circuits on oppsite legs of the service entrance panel . if each load draws 30amps ,what is the current flow in the neutral wire
How many electrons in oxygen family gain or share?
fluorine in its neutral state (meaning it isn't an ion) typically gains one electron
When did la Nina and el nino occur at same time?
It is impossible for them to occur at the same time. They are two opposite phases of the same oscillation. It is either one or the other, or it is somewhere in between (neutral).
Ground wire share?
That's not much of a question but I think you mean "how or why do you share a neutral?" A neutral is sometimes called a "grounded conductor" because it is connected to the main ground at the point of entry of a home or building. But it is not the "ground". You typically have 4 main conductors at the point of entry of your home or other building. 2 are "hot" wires, 1 is the neutral(these three come from the utility provider) the last one is the ground wire(s) usually coming from ground rods pounded into the earth outside (sometimes there is also a conductor connected to the copper water pipe where it comes into the home or to a rebar encased in the concrete foundation of the building)(these are all considered the "grounding electrode conductor" or ground) the neutral and ground are connected at one point only usually in your panel but sometimes in the meter-base. there is approx. 240 volts potential between the two "hot" wires. Both wires are approx. 120 volts each to the neutral. each "hot" wire is also known as a "phase". If you could see the electrical panel with no breakers in it you would notice that one "hot" wire (or phase) feeds half of the breaker spaces and the other "hot" wire feeds the other half but the panel is not split up as it might look (left and right halves). Each phase feeds every other space vertically. So the top two breakers would be fed from "A phase" then the second two by "B phase" and so on down the panel. (this allows a double wide or 2-pole breaker to span both phases and feed 240 volts to your electric range or dryer). Now to your question: Due to the way Alternating Current (AC) is generated, the two phases are polar opposites of each other. When "a-phase" is at it's peak, "b-phase" is at it's lowest point. The neutral corresponding to it's phase conductor follows this pattern. As long as the two circuits are on opposite phases, those two circuits can share one neutral conductor with no overloading problems. If you share one neutral with two circuits from the same phase, you will over-load that neutral and it could create enough heat to potentially cause a fire. There is no over-load protection connected directly to the neutral. Electricians share neutrals for a few reasons. It eliminates wiring costs and also reduces the number of conductors in conduits. You will have problems if you try to share a neutral on circuits requiring GFCI or Arc Fault protection. It causes nuisance tripping and major headaches for all. Sharing neutrals has been a common practice for years. In three-phase systems(common in commercail and industrial buildings), three circuits can share one neutral as they are 120 degrees from each other.(picture a round generator of 360 degrees total).
What would you read if you connect two phases of a wye electrical connection together between phase and neutral?
I think you probably mean 'lines', rather than 'phases' but, even so, your question is still confusing. However, if you connect any two lines together directly, you will create a line-to-line short circuit fault; if you connect any line and neutral together directly, you will create a line-to-neutral short circuit fault.
How many phases are usually involved in the a paper chromatography?
Two phases: a solid one = the paper, and a mobile one = the liquid you put on the paper.
When was Law with Two Phases created?
Law with Two Phases was created in 1984.
What is solvate isomerism?
It's when there are two different neutral groups. One attached to the molecule and one not. The isomer will form whenever the two neutral groups switch
Do I need two ground wires -one for each socket- if I split an outlet?
No. You can split the hot feeds and you can split the neutral feed, but both outlets of a standard duplex receptacle share the ground.
My range came with a 4 wire power cord and it requires both 120V 240V. Should I connect three phases being one connected to the neutral?
No! Two hots and a neutral, plus a ground. The neutral would land on the screw marked with a "W" or with a white dot and the ground to the green screw, the two hots land on the remaining screws. If you are unsure, call a qualified electrician. You can burn down your house or hurt yourself if you do not know what you are doing.
What cause current on the neutral line in a three phase?
Current on neutral in a multi phase system is caused by imbalance between the phases. Question: Are you talking about neutral or ground? The two are very different. Although neutral is grounded, it is expected to be a current carrying conductor, so current on neutral is normal, so to speak. Ground, on the other hand is a protective circuit that is not supposed to have any current on it at all.
