Protection Unit (IT-E165A & IT-E118)

Before starting a battery test cycle (e.g. charge – discharge) it is important to ensure that the DUT is connected correctly and that the voltage of the source and the DUT match. This is to prevent high currents to the output capacitors in the bi-directional DC power supplies.

Itech, supplier of an impressive range of bi-directional DC power supplies, has various Protection Units available for this purpose. These have a built-in detection circuit to detect the voltage difference and to determine whether it has been reversed. If the correct conditions are not met, the test circuit remains disconnected and possible damage to the power supply and/or battery is prevented.

Safety when testing batteries (energy storage devices) cannot be emphasised enough.

The so called Anti-reverse Protection Units are available in different versions, and are suitable for different voltage / current ranges.


Arnold Memelink

Arnold Memelink


"The ABB Power Grids Jumet organisation is an innovative development and production facility of ABB that manufactures active filters and battery energy storage systems to support a stable grid. To test these systems we have acquired two Cinergia GE/EL +120kVA eplus units capable of doing grid emulation (AC + DC), operating as an electronic load (AC +DC) and being a battery emulator. We have experienced very good support from TTMS in obtaining these two Cinergia units. This included organising an on-site demonstration and supplying loan systems prior to the delivery of our final systems. This way we could start testing as early as possible. TTMS also organised training for the operators from the original manufacturer. This support allowed us to introduce the first battery energy storage systems even prior to the full delivery of the Cinergia systems."

University of Luxembourg

Sasan Rafii-Tabrizi

University of Luxembourg

“At the Energy and Environment department of the Faculty of Science, Technology and Medicine (FSTM) of the University of Luxembourg we do have different research projects related to green energy contributing to the development of eco-cities. As a long-standing partner of our research unit, TT&MS has proven that they are able to answer even the most complex questions in a professional manner. They have shown that they are always up to date with the latest technology and do not spare any effort to look at the application and even the situation on site. The exchange of ideas was always very pleasant and took place quickly. We look forward to further years of fruitful cooperation.”


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