The monitoring of voltage surges on 25 kV over-head lines (TM-EU-010)

Insulation systems used on the 25 kV electrified lines of British Rail have been specified to have a surge rating of 250 kV, 200 kV and 175 kV for track-side, overhead line and rolling-stock mounted equipment, respectively. Equipment costs are directly related to the surge rating and substantial economies would...