Question

What is the symbol for Delta and star connection?

Answer 1

In electrical engineering, Delta (Δ) and Star (Y) connections are two common methods of connecting the windings of three-phase electrical systems. Here are their symbols:

1. Delta Connection (Δ)

1. Symbol: The Delta connection is represented by a triangle (Δ) symbol. It shows that the three windings (or loads) are connected in a triangular shape, where each corner of the triangle represents a phase.
   

  !https://upload.wikimedia.org/wikipedia/commons/thumb/4/48/Delta_symbol.svg/1024px-Delta_symbol.svg.png">Delta Connection

1. In this configuration, each phase is connected end-to-end, with the line voltage being equal to the phase voltage.
   

2. Star Connection (Y)

1. Symbol: The Star connection is represented by a Y-shape (Y). It shows that the three windings (or loads) are connected at a common point, known as the neutral point (center), while the other ends are connected to the three phases.
   

  !https://upload.wikimedia.org/wikipedia/commons/thumb/2/27/Star_symbol.svg/1024px-Star_symbol.svg.png">Star Connection

1. In the Star connection, the phase voltage is less than the line voltage by a factor of √3.
   

These two types of connections are essential for controlling and distributing power in three-phase systems, and each has its advantages depending on the application.