380V electric heating tube changed to 220V connection method
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380V electric heating tube changed to 220V connection method
1. Series connection: The power supply voltage of the time division electric heating tube in series is equal to the sum of the voltages of a single electric heating tube.
2. Parallel connection: When connected in parallel, the power supply voltage of the electric heating tube is equal to the voltage of a single electric heating tube.
3. Triangle connection method:
The triangular wiring method is normally used when three electric heating tubes or a multiple of three electric heating tubes are connected together. Its phase voltage is equal to the total voltage.
4. Star shaped wiring method:
The star shaped wiring method is also used when connecting three electric heating tubes or a multiple of three electric heating tubes together. Its phase voltage * √ 3 is equal to the total voltage.
Based on the above introduction, we can know that in the problem, three electric heating tubes are connected together. Therefore, it is necessary to choose one from the triangle and star wiring methods. If we see that three 220V electric heating tubes are connected to a 380V power supply voltage, then the only wiring method is the star wiring method. Due to 220 * √ 3=380
Therefore, three 220V heating tubes should be connected to a 380V power supply using a star shaped wiring method.
Three heating tubes can be connected in a star shaped manner in a three-phase 380V power supply environment, so they can be connected in a triangle shaped manner in a three-phase 220V environment.
If it is a 2-phase 380V (two live wires) heating tube used in a single-phase 220V environment, simple wiring methods cannot achieve the original heating power.
If the rated working voltage of the BAI heat pipe is 380V, it cannot be changed to 220V. Heating tubes usually have only two terminals. There is no possibility of any modification. Shu
However, if your device allows for power reduction. A heating tube with a rated voltage of 380 volts is not unsuitable for use with 220 volts. When using 220 volts, the power is reduced by 1/3
If your contactor has a coil voltage of 220V, you need to connect a neutral wire to supply power to the contactor, or use a 308V to 220V control transformer. The main contact input wire should still be connected to 380V, and the output wire should be connected to the heating tube.
Add a 220V step-up 380V transformer and cut a short section of the resistance wire
Based on the above introduction, we can know that in the problem, three electric heating tubes are connected together. Therefore, it is necessary to choose one from the triangle and star wiring methods. If we see that three 220V electric heating tubes are connected to a 380V power supply voltage, then the only wiring method is the star wiring method. Due to 220 * √ 3=380
Therefore, three 220V heating tubes should be connected to a 380V power supply using a star shaped wiring method.
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