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 Equipment
ADVANCED POWER SYSTEMS

FREQUENCY CONVERTER

IF series PV INVERTER

INVERTER

JEMAs OWN TECHNOLOGY

RECTIFIER

UPS

VOLTAGE REGULATOR. ACTIVE FILTER



JEMA is the European leader supplying custom power converters systems for top level facilities: atomic particles and nuclear fusion research laboratories; grid quality solutions, test benches, railways, etc.

These markets are featured by their exclusivity and high demands & challenges. JEMA has to develop unique solutions, most of times in the limit of what it can be achieved using today’s technology.

Customers usually are public or semi-public entities and international organizations, as CERN, EFDA, CIEMAT, SNCF, Eurotunnel, NASA, ... These contracts are awarded through tender requests restricted to a very limited number of previously approved companies, and our competitors are big multinational companies.

JEMA has achieved this remarkable level thanks to many years of continuous work and effort, as well as our know-how and reliability. All this added to the maximum technological knowledge we have to gather.

Most significant features of these products are:

- To be unique systems, for an specific application and supply, covering very particular customer needs.

- top complex management and long delivery time projects, with a huge number of design tasks, calculations, simulations, tests, etc. Very demanding and strict permanent relationship with the customer. Continuous justification and approval for each technical decision or partial design.

- very special performances: extreme operation conditions, high and unusual voltages and currents, redundancies, high precision, high performances control, high quality, aggressive environment, bulky products, logistic associated problems, etc.

- application of innovative technologies, components and materials, with short or none previous uses references. This implies a deep knowledge about possibilities offered by the market.

- documentation and customer training at a maximum level, even supplying developed software source code.

- 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.

JEMA: developments in knowledge vanguard
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