Eberswalde, Germany

Delivery: 1993-1995

The electrically driven trolley bus is a mass transit vehicle for the future offering numerous ecological advantages.
The Eberswalde Transit Authority, BBG (Barnimer Bus Gesellschaft), therefore decided to extend and to modernise its trolleybus network. Consequently, a total of 15 new state-of-the-art vehicles were purchased between 1993 and 1995.

They selected an articulated low-floor trolley bus corresponding to the already proven MAN diesel low-floor bus. The chassis construction uses standard components of the respective low-floor diesel version.

The complete electrical equipment has been developed and manufactured by Kiepe. The latest power electronic components are used, in particular also for the three-phase current traction equipment. The newly developed direct pulse inverter with GTO-technology (gate turn off thyristor) combined with the robust and maintenance-free three-phase asynchronous motor represents the latest state of the art.

The direct pulse inverter is controlled by a microprocessorized electronic drive/brake control unit. Besides controlling the operating sequences, the electronic drive/brake control unit offers the possibility of recording service data and has a fault/data memory which can be read by means of a normal PC and analysed on the spot by the transit authority or by data transfer via modem to the manufacturer.
This propulsion system has been in series application in trolley buses and tramways since 1989 with the best results.

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