Mitsubishi Electric Receives Order for Prototype Traction Transformers from French National Railways
2017年12月5日 - 11:10AM
ビジネスワイヤ(英語)
First Japanese company to be certified by SNCF
as propulsion systems supplier
Mitsubishi Electric Corporation (TOKYO:6503) announced today
that it will be the first Japanese company* to supply the French
National Railways (SNCF) with prototype traction transformers for
the Z2N commuter train operating in Paris and its suburbs and T4
tram trains also operating in the Parisian suburbs. The orders were
made possible by Mitsubishi Electric becoming the first Japanese
company to be certified by SNCF as a propulsion systems supplier,
effective immediately. The traction transformers for the Z2N and T4
will be delivered in February and December of next year,
respectively.
* According to Mitsubishi Electric research, as of December 5,
2017
Traction Transformer for
Z2NThe prototype traction transformer weighs 400kg less
than the Z2N’s existing product thanks to its aluminum winding
cables, yet its conversion efficiency is the same or better than
the currently installed equipment. The interface design is
identical with that of the existing equipment, so the refurbishing
will not require any modification of the train car.
Traction Transformer for
T4World’s first* application of a natural running air
cooling type traction transformer on the car roof, leading to a
noise reduction of around 13dB by omitting the electric cooling
fan, and achieving electricity loss savings of 50 percent compared
to the previous equipment resulting in significant energy
efficiency improvements. Also, fully hermetic constant-pressure
bellows seals will eliminate the need to periodically replace the
insulator oil, which will remain in a sealed system and will not
deteriorate. As a result, overall maintenance costs will be
reduced.
BackgroundSNCF, in addition
to procuring new high-speed and commuter trains, also actively
refurbishes its existing train sets. Retaining a car’s body and
only renewing components as required helps to lower the railway’s
environmental impact and to make effective use of existing assets.
For the refurbishments this time, SNCF requested Mitsubishi
Electric to lower the weight of the Z2N’s traction transformer and
to reduce energy consumption and noise while extending the life of
the T4’s traction transformer.
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