The new power transformer is the world's
first transformer at the 420 kV extra-high
voltage level for which no water hazard
classification must be issued. As a result,
this transformer can be installed and
operated in water conservation areas or
in zones subject to stringent environmental
protection restrictions.
Rapeseed, soy or sunflower oils, on the
other hand, are biodegradable and have
a much higher flashpoint. A vegetable oil
transformer can therefore be operated
without additional protective equipment
such as collecting tanks, even in zones
with strict environmental requirements.
With their comparatively better fire safetyclass, vegetable oil transformers can even
be used in densely populated residential
areas.