The 25 kV overhead supply for electric train traction is single phase.....
Does this mean the supply to Network Rail's power feeders is a single phase supply from the local electrical supply network which would create a significant un-balance in the local network.
Even if it is a "single" phase derived from two network phases there will be un-balance between the phases.
Or does the system take energy balanced across three pahses and then convert that energcy to a single phase supply to the overhead 25 kV ?
Does this mean the supply to Network Rail's power feeders is a single phase supply from the local electrical supply network which would create a significant un-balance in the local network.
Even if it is a "single" phase derived from two network phases there will be un-balance between the phases.
Or does the system take energy balanced across three pahses and then convert that energcy to a single phase supply to the overhead 25 kV ?