Abstract: In an electric telpher system with non-contact power transmission between a feeder (4) placed at a spacing along a slide rail (1) for mobile transfer units (12) and an inductive current collector on the transfer unit, a data transmission loop (7) is arranged at a defined distance from the feeder for non-contact data transmission between a central control station (18) and the transfer units in such a way that its parallel conductors are located exactly within a field line of the feeder. The data transmission loop is direct-coupled with the central control station via a transmission station (10). Each transfer unit is equipped with a communication module (6) with transmit and receive coils on ferrite cores for inductive data transmission to ensure that these units can receive all information exchanged via the data transmission loop. The data transmitted by means of induction consists in sinusoidal signal sequences at two different fixed frequencies in the medium frequency range that serve as digital signals.

Abstract: In an electric telpher or similar conveyor system comprising movable transfer units, power is transmitted to consumers having differing input power requirements in that the slide rail (1) is also used as return conductor of the feeder (4) in the primary circuit and in that the current collector (6) of the secondary circuit comprises two separate and differently rated windings (N01, N02) to provide two separate supply voltages (U01, U02) with different load capacities that are geared to the differing power needs of the consumers via electronic collector circuits (AE1, AE2).