Why we haven't any connection other than Delta or star in 3phase

In summary, Delta and Star are the only connections used in 3-phase systems due to their ability to provide a balanced load and high flexibility in voltage and current control. While there are other connections available, they are not as efficient or flexible. The advantages of using Delta and Star include balanced load distribution, flexibility, and cost-effectiveness. However, they also have a few disadvantages such as the need for a neutral wire and susceptibility to voltage fluctuations. It is possible to convert between Delta and Star connections using transformers, but this process can be complex and require additional equipment.
  • #1
klmnopq
27
0
why we haven't any connection other than Delta or star in 3phase
 
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  • #2
Is it even theoretically possible to have another connection?
 
  • #3
Extended delta is one connection.
Scott connection is another connection.
Open delta is another connection.
Zigzag is another connectiion
 
  • #4
Double Y, double delta, open delta, & dual secondary w/ one Y & one delta phased for 12-phase rectification. There are creative combinations that people have come up with. Also, as stated above, a zig-zag is a useful connection. It allows the creation of an optimum ground point/node.

Claude
 
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  • #5
?

There are several reasons why we primarily use Delta or Star connections in 3-phase systems. One reason is that these connections provide a balanced load distribution, which is important for efficient power transmission. This means that the voltage and current are evenly distributed among the three phases, reducing the strain on individual components and increasing the overall reliability of the system.

Another reason is that Delta and Star connections can easily be converted into each other, allowing for flexibility in power distribution. This is particularly useful in industrial settings where different types of equipment may require different types of connections.

Additionally, these connections are relatively simple and cost-effective to implement, making them a popular choice in power systems. Other types of connections, such as Y or T connections, may have specific applications but are not as widely used due to their complexity and cost.

Overall, the Delta and Star connections have proven to be reliable and efficient choices for 3-phase power systems, which is why they are the most commonly used connections in this type of system. However, as technology and power needs continue to evolve, it is possible that we may see the use of other types of connections in the future.
 

1. Why is Delta or Star the only connection in 3-phase systems?

In 3-phase systems, Delta and Star are the only connections used because they provide a balanced load, which is necessary for efficient power distribution. These connections also allow for a high level of flexibility in terms of voltage and current control.

2. Can't we use other connections in 3-phase systems?

While Delta and Star are the most commonly used connections in 3-phase systems, there are other connections such as Zigzag, T-connection, and V-connection that can be used for specific purposes. However, these connections are not as efficient or flexible as Delta and Star.

3. What are the advantages of using Delta or Star in 3-phase systems?

Delta and Star connections in 3-phase systems have several advantages, including balanced load distribution, high flexibility, and ease of voltage and current control. They also have a lower number of current-carrying conductors compared to other connections, making them more cost-effective.

4. Are there any disadvantages of using Delta or Star in 3-phase systems?

One disadvantage of using Delta or Star connections in 3-phase systems is that they require a neutral wire, which adds to the overall cost of the system. Additionally, these connections are not suitable for unbalanced loads and can cause voltage fluctuations if not properly balanced.

5. Can we convert between Delta and Star connections in 3-phase systems?

Yes, it is possible to convert between Delta and Star connections in 3-phase systems using transformers. This is often done to change the voltage level or to balance the load in the system. However, this conversion process can be complex and may require additional equipment.

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