24-09-2021, 12:58 PM
The wavelength at 50Hz is indeed very long and for steady state conditions is probably irrelavent in the UK. In the extreme transient conditions of a short circuit there will be much higher frequencies present. Not sure whether it's true transmission line effects or just lumped L and C but it's going to matter during short circuits.
For very long and international connections it's usual to use DC. This avoids the need to synchronise the 2 grids thus connected. There are no losses due to power factor. You can carry more power on a given cable because an AC cable would need to be insulated for Vpeak, about 140% of Vrms or Vdc.
For very long and international connections it's usual to use DC. This avoids the need to synchronise the 2 grids thus connected. There are no losses due to power factor. You can carry more power on a given cable because an AC cable would need to be insulated for Vpeak, about 140% of Vrms or Vdc.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
