When it comes to the voltage and wiring problems of electric heating tubes, many customers may have more or less problems on this. The correct wiring method or voltage judgment of electric heating tubes has a direct effect on the later life of electric heating tubes in use. relation. In order for everyone to have a clearer understanding and understanding, our company has compiled a brief introduction on how to select the power supply and wiring of the electric heating tube.
1. How to correctly judge the voltage used:
1. Obtained by calculation and measurement: Knowing its resistance, power or other electrical parameters, the rated power can be calculated by formulas. After confirming, the value can be obtained by measuring instrument. Formula: I=U/RP=UI=R*I*I=U*U/R Where: I=current (ampere); U=voltage (volt); R=resistance (ohm); power=P (watt ).
2. The actual wiring use: Generally, the conventional electric heating tube uses 220V, 380V. When the voltage between the two is uncertain, you can directly connect to the 220V voltage for use, and judge by observing the working condition of the electric heating tube. If the heating effect is not good, it can be concluded that the set voltage is greater than 220V.
2. Judge the connection method:
1. Normal electric heating tube generally chooses the voltage of 380V, and the voltage of 380V generally chooses the delta connection mode.
2. Unknown voltage selection wiring method: generally use 380V, choose delta connection. If the voltage is unknown, the star connection method can be used. If the heating effect is not obvious, the voltage can be judged.
