Wiring method of finned heating tube
If the rated voltage of 220V heating tube, to connect in the 380V circuit, the need to use star connection method.
If the rated voltage 380V heating tube, to connect in the 380V circuit, need to use the triangle connection method.
(1) Star connection method: There is a neutral point, the first end of each component is connected together (this point is called the neutral point), and the three ends are respectively connected to the three phase lines. There are two kinds of voltage classes, line voltage and phase voltage, and the line voltage is equal to about 1.73 times the phase voltage and the line current is equal to the phase current.
The rated voltage of the three components is 220V; If the three elements have different resistance values, the neutral point should be connected to the zero line.
(2) Triangle connection: Triangle connection method: the first end of each element of the electric heating tube is connected to the end of another element (that is, the end is connected), three contacts are respectively connected to three phase line wiring mode.
