3 ms·
There's a high voltage DC link between the North and South islands of NZ, it used mercury arc valves until the 1990s. https://en.wikipedia.org/wiki/HVDC_Inter-
by bacon_waffle 8y ago
There's a high voltage DC link between the North and South islands of NZ, it used mercury arc valves until the 1990s. https://en.wikipedia.org/wiki/HVDC_Inter-Island https://en.wikipedia.org/wiki/HVDC_Inter-Island