review33.com:影音天地:50Hz 60Hz 的分別

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[#1] 50Hz 60Hz 的分別請問我有部DAC 行50Hz, 如果我帶去用60Hz嘅國家用, 可行嗎? 謝謝		john1001 正式會員 223.xxx.xxx.56	2020-07-13 18:18

[#2] 50Hz 60Hz 的分別
＞＞＞DAC 行50Hz

什麼行50Hz?

可否講清楚點

有些名機丶Hz 不對即停丶出error

最後修改時間: 2020-07-13 18:37:32

phil.ng

會員
223.xxx.xxx.7

2020-07-13 18:33

[#3] 50Hz 60Hz 的分別
估都估到佢係指電源啦，不過我都想知.

其實我有部phono amp 係行60Hz既，但我用50Hz又唔覺好大問題，可能係自己有問題。

最後修改時間: 2020-07-13 18:46:45

raymondelsit

正式會員
116.xxx.xxx.2

2020-07-13 18:38

[#4] 50Hz 60Hz 的分別
在這好多奇事丶有師兄問AV amp, 及十仔問題丶

十幾個對答

一日後話佢冇咪丶冇做過 auto cal, 點幫呀

所以問清楚易幫點

最後修改時間: 2020-07-13 18:53:49

phil.ng

會員
223.xxx.xxx.7

2020-07-13 18:49

[#5] 50Hz 60Hz 的分別
若指電源，以小弟經驗，行馬達的會有影响，例如唱盤，除非有指明 50 Hz / 60 Hz 可用！

最後修改時間: 2020-07-13 21:22:57

JC8852

正式會員
42.xxx.xxx.112

2020-07-13 21:22

[#6] 50Hz 60Hz 的分別
要明白電／磁的原理

The lower the operating frequency the more flux lines that are generated. Operating a transformer at 50Hz generates 20% more flux lines than at 60Hz. ... Therefore, a transformer designed to run at 50Hz will simply run cooler at 60Hz. But one designed only for 60Hz may overheat if subjected to 50Hz.Dec 12, 2014

如你看得明丶行60hz 時少了flux lines

phil.ng

會員
223.xxx.xxx.7

2020-07-13 21:38

[#7] 50Hz 60Hz 的分別
再深入點

Increase in transformer frequency from 50Hz to 60Hz will have the following effects:

(1) Flux density in core will decrease. This means less core saturation and hence reduction in harmonic content of magnetising current.

(2) Core loss increases with frequency but decreases with flux density. So, there may be marginal increase in core loss, considering that some core saturation still exists.

(3) Copper loss will increase due to increased conductor resistance at 60Hz.

(4) Leakage reactances will increase due to increase in frequency. This means poor regulation and a drop in secondary terminal voltage.

phil.ng

會員
223.xxx.xxx.7

2020-07-13 21:44

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