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120V Voltage

120V Voltage

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As shown in the figure, please ask the American to answer, is this voltage slightly higher for the American ballast?

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rjluna2
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Robert


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May 21, 2020 at 06:02 AM Author: rjluna2
It is typically in between 120 to 130 Volts base on the equation of V(RMS) = V/sqrt(2).

(Google Translate:) 根据V(RMS)= V / sqrt(2)的公式,典型值为120至130V。

https://zh.wikipedia.org/wiki/平方平均数

Pretty, please no more Chinese failure.

Bottled lightning
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May 29, 2020 at 11:28 PM Author: Bottled lightning
If you are operating 60hz 120v ballasts on 50hz 100-110v would probably work better.
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May 29, 2020 at 11:40 PM Author: Xytrell
128 is about the absolute max you'd ever see in the US... and technically above power company limit, which I think is 126V? 120 or slightly lower is far more common. As stated above, they probably should be derated slightly if your frequency is lower.
Men of God
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jiachao.wei.71 chao_813975447 UChyTpXvlQ8ZCfBPP_lJjubg chao990613
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May 30, 2020 at 01:56 AM Author: Men of God
That's the result of my home's high voltage, which was measured when it reached 234V. Normally, when the voltage is 220V, the voltage on the secondary side of the transformer is around 125V. When the voltage is 110V, the inductive ballast of RAPID START type and the ballast of lead lag type will not start the lamp.

我不会英文,所以我用中文,请你们用翻译网站翻译我打的字!

I can't in English, so I in Chinese, please use the translation website to translate my words!

Ash
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May 30, 2020 at 02:15 AM Author: Ash
For starting only the voltage matters, but for correct run current the voltage and frequency matter. So you can't get both exactly right with 50 Hz. You can fine tune the voltage by adding/subtracting few volts using an extra low voltage isolation transformer
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