Heating tube wiring method:
If it is a heating tube with a rated voltage of 220V, it is necessary to use the star connection method to be connected to the circuit of 380V.
If it is a heating tube with a rated voltage of 380V, it needs to be connected to the circuit of 380V, and the delta connection method needs to be used.
If it is a heating tube with a rated voltage of 380V, the star connection method is adopted, and the rated power of the heating tube cannot be reached. The actual power is about one-third of the original rated power (220*220)/(380*380).
The heating of the electric heating tube mainly relies on the internal heating wire to generate heat through the current, and the wiring method determines the current and voltage state of the energized, so the wiring method of the electric heating tube is very important. The influence of the wiring method on the electric heating pipe can be understood in the article on the impact of the electric heating pipe wiring method. Under reasonable use conditions, the greater the voltage and power, the higher the heating efficiency. The heating tube wiring method determines the way the external voltage and current pass through the resistance wire, so the choice of the wiring method of the electric heating tube is of great practical significance. So how do we choose the wiring method of the electric heating tube?
The following is a brief introduction to this problem: There are two commonly used wiring methods for electric heating pipes: delta connection and star connection (that is, commonly known as Y-shaped connection)
1. Triangle connection:
(1) Triangle connection: the first end of each element of the electric heating tube is connected to the tail end of another component, and the three contacts are connected to three phase wires;
(2) Features of the delta connection: the rated voltage of the three electric heating tube elements is 380 volts; If the resistance values of the three components are different, it does not affect the feasibility of this connection. The delta connection is three times more powerful and current than the star connection.
2. Star connection:
(1) Star connection: the heating element of three electric heating tubes, the first end of each element is connected together (this point is called the neutral point), and the three tail ends are connected to three phase wires.
(2) When the rated voltage of the three components is 220 volts; If the three components have different resistance values, the neutral point should be connected to the neutral line.
