l****y 发帖数: 3925 | 1 homedepot或者什么地方有那种转换器吗?谢谢 |
t***z 发帖数: 5112 | |
b******o 发帖数: 5644 | |
a****t 发帖数: 1056 | 4 buy the convertor at radioshack
11V/220V convertor is also sold at Radioshack
I have been using this.
I also heard you can use two 火线 to get 220V like in electronic dryer.
Please correct me if I am wrong on this. I never tried this. I also don't
know how the 240V is obtained in the electronic dryer in some houses.
【在 b******o 的大作中提到】 : 220v的就不用试了。
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b******o 发帖数: 5644 | 5
千万不要这样试,这个相当于国内的380,是三相电。用来搞大电器的。
【在 a****t 的大作中提到】 : buy the convertor at radioshack : 11V/220V convertor is also sold at Radioshack : I have been using this. : I also heard you can use two 火线 to get 220V like in electronic dryer. : Please correct me if I am wrong on this. I never tried this. I also don't : know how the 240V is obtained in the electronic dryer in some houses.
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t**********0 发帖数: 1700 | 6 正确做法是一个火线,自己再做一个接地良好的地线。但频率依然不同。 |
w******t 发帖数: 16937 | 7 嗯?
上图上照片。
另外,11V/220V的convertor,哪里买的?真牛!!
【在 a****t 的大作中提到】 : buy the convertor at radioshack : 11V/220V convertor is also sold at Radioshack : I have been using this. : I also heard you can use two 火线 to get 220V like in electronic dryer. : Please correct me if I am wrong on this. I never tried this. I also don't : know how the 240V is obtained in the electronic dryer in some houses.
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i*******d 发帖数: 1430 | 8 不懂就不要乱说,这样做不安全,因为没有零线,但是什么380三相电就是瞎说了。
这里进屋是一根零线,两根火线,还有一根地线,零线和两根火线之间都是110v的电压
,一般插座都是一根零线和其中一根火线,还有一根地线,是110V.
两根火线之间有180度的相位差,所以两根火线之间是有效电压是110+110=220V. 象炉
子,烘干机之类的电器需要大功率,就直接用了两跟火线供电,这样同样功率下电流可
以小一半。这就是为什么这里220V的插座都是四根线:零线,两根火线,地线。
国内的220v进屋是一根零线一根火线,接地很多时候都是扯淡,根本没有,最多在水管
上搭一下就完了。
380v三相电的来源是一根零线三根火线,火线和零线之间是220v, 每根火线和其他两根
火线之间有120度的相位差,所以两根火线之间的有效电压是380v,至于为什么是380v,
你需要去复习三角函数以及一点点积分。
【在 b******o 的大作中提到】 : : 千万不要这样试,这个相当于国内的380,是三相电。用来搞大电器的。
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