50HZ vane relay phase sensitivity tests characterisation of type VT1, CE391 and G4 relays (RR-SAM-004)

The phase sensitivity of a 50Hz vane relay used in track circuit applications is important when considering its susceptibility to pick-up from a 50Hz interference source external to the track circuit. This report contains the results of practical testing to determine the phase sensitivity of the Westinghouse Type VT1, the...