Weidmüller’s RockStar® HighPower system offers completely new and custom-tuned components. These provide an innovative product solution for pluggable power transmission in transportation applications. The system consists of one-piece crimp contacts, insulating sleeves, insert-holder frames and a multi-part, die-cast aluminium housing.
A continuously reliable connection
resistant to shock and corrosion. Even if a stone happened to impact and cause damage while the Verlaro® D was travelling at high speeds, the entire connector would not need to be replaced because of the modular design. It would only be necessary to replace the damaged housing.
For a non-interrupted power supply in the Velaro® D train, Weidmüller has developed an application-specific connectivity solution
A connectivity solution in a tight space
Siemens Mobility was also looking for a non-interrupted power supply for all eight wagons in its Velaro® D train. They sought a solution for safely connecting the medium-power cables with up to 4 kV that would be efficient and, most importantly, compact. In order to implement these connections in the smallest space possible, Weidmüller designed their compact WFF 185 two-stud terminal so that it could carry 4 kV.
Inspired by an idea from key account manager Hans-Jürgen Kern, the Weidmüller engineers designed a special construction with partitions positioned between the stud terminals. The terminals also needed to be fastened to an insulation panel in order to ensure that they would be capable of carrying 4 kV.
The specially-processed panels that are attached to the WFF stud terminals must accomplish two functions. Firstly, the terminal attachments and the mounting bracket are separated from each other so that they are safely insulated from each other. Secondly, the panel must withstand mechanical loads and ensure that there is a vibration-resistant connection between the stud terminals and the mounting bracket. The rails are then placed in a compact installation room which is located on both ends of each train wagon. The mounting bracket is a key factor in establishing a quick and easy attachment for this connectivity solution.
Clever reduction of variants
The WFF 185 – with a width of 3.5 cm – is much smaller than the standard stud terminals conventionally used for 4-kV transmissions. But it was not only the compactness of this solution that convinced Siemens Mobility. The train manufacturer was also able to reduce the number of stud terminal variants and cable lug variants that they require for connecting the medium-power cables. Weidmüller's WFF-185 rails were chosen as the connectivity solution for both the 110-V and 4-kV cables in the Velaro® D.
Reliable connections for the transport of the future
Published in May 2010Picture: Siemens
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