3 ms·
> a frequency of 50 or 60Hz yields what are, by modern standards, comically huge step-down transformers Should switch to 400Hz like aircraft do. Not just comic
by Scoundreller 3y ago
> a frequency of 50 or 60Hz yields what are, by modern standards, comically huge step-down transformers
Should switch to 400Hz like aircraft do. Not just comically huge transformers, but also motor/generator magnets.
> A special generator was designed to create an output of 400 Hz. This allowed a motor which was the size of a watermelon to be replaced by one the size of a one-pound coffee can which could do the same work.
> The saving of weight allowed increased cargo capacity and decreased fuel consumption. Power at 400 Hz for aviation was a success and became the standard of modern AC-powered aircraft.
> Airports all around the world standardized on the same power system. This included the physical plug and cable as well as the 400 Hz power so that aircraft from anywhere in the world could land and be serviced wherever they landed.
The aviation power system of 400 Hz became one of the first worldwide-adopted standards.
https://fcxinc.com/why-the-aviation-industry-operates-on-400-hz-power/ https://fcxinc.com/why-the-aviation-industry-operates-on-400...
- teraflop 3y ago> Should switch to 400Hz like aircraft do. Higher frequency lets you get away with smaller transformers, but decreases the skin depth on transmission lines which increases losses.