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 For
the last 25 years JEMA has been one of the limited number of custom
power supply equipment providers for experimental systems in atomic,
particle and nuclear fusion research laboratories.
This market, completely different from the rest of the company’s
activities, is featured by its exclusivity and high requirements,
and usually we have to develop solutions in the limit of what it
can be achieved using today’s technology. JEMA customers are
public or semi-public entities, related to international organisations
as CERN, UKAEA-JET, IPP, CIEMAT, ...
These power supplies are awarded through international tender requests
restricted to a very limited number of previously approved companies,
being most of them, big and well know multinational companies. Obviously
JEMA has achieved this remarkable level thanks to many years of
continuous work and effort, as well as our know-how and reliability,
that has to be proved for each project.
Some of the most significant features of these systems are:
- be unique models, for an specific application and supply:
usually 1 or 2 units or very short series.
- very special performance: unusual voltages and currents
(10 kVDC – 30 mA; 130 kVDC – 130 A, for instance),
very accurate (around 1%) and high quality (ripples <0’1%,
ultra-fast dynamic response, limited heating temperatures, operational
environment of 50 mTesla, etc.).
- application of slightly experimented innovative material,
products and technologies.
- high operational security: a very reliable operation
must be assured, besides the provision of all type of protections
against exceptional or critical situations, and risks for the
staff that handles the system.
These projects are developed through several months, even years,
with an strict and precise dynamic status in order to achieve
an steady contact with the customer, permanent checking and approval
of each decision or partial design, studies and analysis of certain
aspects in test laboratories and research centres of diverse fields
(mechanical, electrical, materials, etc.), and technical documentation
(reports, studies, calculations, handbooks, etc.).
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