От: ДКЕВР: Поевтиняване на тока ще оскъпи парното
Не съм убеден. В Япония имат проблем с различна честота, не с различно напрежение: http://en.wikipedia.org/wiki/Mains_p...ound_the_world
(Данните в таблицата могат да се пренареждат). А даскало от елитнийо ленински техникум не ме е лъгал, представете си:
Първоначално публикуван от Ясен
Преглед на мнение
(Данните в таблицата могат да се пренареждат). А даскало от елитнийо ленински техникум не ме е лъгал, представете си:
The system of three-phase alternating current electrical generation and distribution was invented by a nineteenth century creative genius named Nicola Tesla. He made many careful calculations and measurements and found out that 60 Hz (Hertz, cycles per second) was the best frequency for alternating current (AC) power generating. He preferred 240 volts, which put him at odds with Thomas Edison, whose direct current (DC) systems were 110 volts. Perhaps Edison had a useful point in the safety factor of the lower voltage, but DC couldn't provide the power to a distance that AC could.
When the German company AEG built the first European generating facility, its engineers decided to fix the frequency at 50 Hz, because the number 60 didn't fit the metric standard unit sequence (1,2,5). At that time, AEG had a virtual monopoly and their standard spread to the rest of the continent. In Britain, differing frequencies proliferated, and only after World War II the 50-cycle standard was established. A mistake, however.
When the German company AEG built the first European generating facility, its engineers decided to fix the frequency at 50 Hz, because the number 60 didn't fit the metric standard unit sequence (1,2,5). At that time, AEG had a virtual monopoly and their standard spread to the rest of the continent. In Britain, differing frequencies proliferated, and only after World War II the 50-cycle standard was established. A mistake, however.
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