The safety device comprises a secondary-side star connection (1, 2, 3) of the supply transformer whose star point is connected to earth potential. The resulting ripple of the rectified component voltages with respect to earth potential permits fault currents to be detected with simple alternating ...
device\nthe attachment component to fahrleitungsmasten of rail transport, in particular\noberleitungsmasten from concrete, preferably schleuderbeton marked\nthe fact that the betonmast (1) r & t.; r recording component\n(4) how raising and \\/ or cross beams and \\/ or schalterantrieben...