3 ms·
A difference in frequency is not that big of a problem... except for the fact that you can't easily transfer power across the two grids. Japan has some power c
by pezezin 2y ago
A difference in frequency is not that big of a problem... except for the fact that you can't easily transfer power across the two grids.
Japan has some power conversion stations, but when the Tohoku earthquake and tsunami of 2011 knocked off several powerplants in the 50 Hz half of the country (including Fukushima), they could not transfer enough power from the other side, and the suffered many blackouts, even though the 60 Hz half of the country had power to spare.
- johannes1234321 2y ago> A difference in frequency is not that big of a problem... except for the fact that you can't easily transfer power across the two grids. And for everything, which uses the frequency as a clock.
- pezezin 2y agoTrue. Nowadays it is not a problem, but it makes me wonder how they could make 60 Hz television run on a 50 Hz grid.
- lxgr 2y agoI've been wondering that too recently, and apparently it wasn't that big of a deal [1] – more recent analog TVs weren't that susceptible to mains interference of the sort that benefited from being synchronized to the frame rate. In other words, the mains frequency was never used as a frequency source for TVs, and the apparent frequency match was only to make interference patterns not wander around the screen. [1] https://electronics.stackexchange.com/questions/164249/is-the-design-decision-for-different-frequencies-in-pal-and-ntsc-related-to-the https://electronics.stackexchange.com/questions/164249/is-th...