找人修理摇摆机后面的开关

[doctorzeng]

摇摆机如图，后面的开关坏了，请人修。谢谢。
电子邮件: doctor2002@gmail.com, Tel: 613-710-9555

 

[mianfei]

Highlight: Rated Frequency: 60 HZ, but you are using 50 HZ from Hydro Ottawa.

 

[parkdale]

Highlight: Rated Frequency: 60 HZ, but you are using 50 HZ from Hydro Ottawa.

maybe she was using for a long time didn;t have any problem..

 

[parkdale]

@2018

 

[uglyducking]

摇摆机如图，后面的开关坏了，请人修。谢谢。
电子邮件: doctor2002@gmail.com, Tel: 613-710-9555

让我们摇摆摇摆，一起摇摆。。。。。停不下来?

 

[New Person]

Highlight: Rated Frequency: 60 HZ, but you are using 50 HZ from Hydro Ottawa.

整个北美还有50HZ的供电网络？

 

[冷笑六声]

让我们摇摆摇摆，一起摇摆。。。。。停不下来?

 

[冷笑十声]

去digikey买一个一样的装上就齐了

 

[mianfei]

整个北美还有50HZ的供电网络？

You are right, we are 60HZ .

 

[cathlethorpe]

/ Blog
/ Why we use 50Hz, 60Hz or 400Hz frequency?
Why we use 50Hz, 60Hz or 400Hz frequency?
Thursday, January 12, 2017

Why the frequency of power supplies in European and Asian countries is 50Hz, while American countries use 60Hz power supplies? What is the basic of the standard? What are the advantages and disadvantages of 50Hz and 60Hz power supply? In addition, why the airport and aircraft use 400Hz frequency?

In fact, there is no big difference between 50Hz and 60Hz, only the generator speed has slightly difference. Choose 50Hz or 60Hz, it's almost always the same in a country except Japan (Japan has both 50Hz and 60Hz power supplies).

We should be aware that why use 50Hz or 60Hz, rather than lower or higher frequency.
In electrical system, frequency is a very important basic element, not arbitrarily determined. It looks like simple, but in fact, it is a much complex issue, involve with many aspects. From the principle, we should mention the classical electromagnetic theory found by Maxwell, Hertz added a critical point for Maxwell's theory, Faraday's law of electromagnetic induction and the world's first electromagnetic induction generator, the British engineer Ward King made the electromotor first, the French Pixie made generator, Siemens found the generator principle, the invent the power generation machine, which is the first case in practical application.

 

[New Person]

You are right, we are 60HZ .

知道50HZ和60HZ电网共存的一个国家是日本。两种电网之间用直流连接。

 

[jy]

知道50HZ和60HZ电网共存的一个国家是日本。两种电网之间用直流连接。

为啥搞那么复杂?
为啥两个网还要连?

 

[New Person]

为啥搞那么复杂?
为啥两个网还要连?

历史遗留问题。再说，用直流连接两个电网对稳定运行有好处。

 

[jy]

历史遗留问题。再说，用直流连接两个电网对稳定运行有好处。

这个直流连接有意思，不知道是单向的还是双向的，双向的可能很难做。

 

[uglyducking]

这个直流连接有意思，不知道是单向的还是双向的，双向的可能很难做。

啦两根线，你看如何？