Delta connection and star connection

- Jun 19, 2019-

The heating of the electric heating pipe mainly relies on the internal heating wire to generate heat through the current, and the wiring mode determines the current and voltage state of the electric current, so the wiring mode of the electric heating pipe is very important.


Under reasonable conditions of use, the higher the voltage and power of the electric heating tube, the higher the heat efficiency. The heating tube wiring method determines the way that the external voltage and current pass through the resistance wire, so the choice of the wiring mode of the electric heating tube has important practical significance. So how do we choose the wiring method of the electric heating tube?


The following is a brief introduction to this problem: the wiring method of the electric heating tube is commonly used on the heating tube: the delta connection method and the star connection method (also known as the Y-connection method).


Delta connection method:


1, delta connection: the first end of each component of the electric heating tube is connected to the tail end of the other component, and the three contacts are connected to the three phase lines respectively;


2, The characteristics of the delta connection: The three electric heating tube components are rated at 380 volts; if the resistance values of the three components are different, the feasibility of this connection is not affected. The delta connection is three times more powerful and current than the star connection.




Star connection method:


1, star connection method: heating elements of three electric heating tubes, the first ends of each element are connected together (this point is called neutral point), and the three tail ends are connected by three phase lines respectively.


2,When the three components are rated at 220 volts; if the resistance values of the three components are different, the neutral point should be connected to the neutral line.