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  • 2016.08.22 New CEO for EURO-DIESEL


    Breaking News: The Board of Directors of Euro-Diesel Holding SA today announces the appointment of Maarten Barmentlo as the new Chief Executive Officer (CEO) of the Euro-Diesel Group.
    Discover our Press release : link
  • 2016.08.03 E1 DYNAMICS PRESENTS DRUPS: A Technical Review

    Flyer E1

  • 2016.06.20 EURO-DIESEL in the News - Jobs Regions 17062016


    Bien que ne faisant pas directement partie de l’aéronautique à proprement parler, la société EURO-DIESEL entretient néanmoins des liens étroits avec le secteur. Le plus évident est probablement le rôle essentiel joué par son produit phare auprès d’un de ses clients les plus importants: les aéroports & tours de contrôle du trafic aérien. Le très haut degré de technicité de ce produit le rend également comparable aux technologies de l’aéronautique. Nous avons rencontré Philippe Gillain, administrateur délégué d’EURO-DIESEL, qui nous explique les spécificités de cette entreprise liégeoise, et les profils qui contribuent à sa réussite.


  • 2016.05.19 Data Center Wold 2016 - Prize Draw Winner

    EURO-DIESEL (UK) Ltd exhibited at Data Centre World 2016 at the London Excel on the 12-13 April. A major event in the Data Centre calendar - this year’s show was bigger and better than ever with over 250 exhibiting companies. With strong footfall to the EURO-DIESEL stand, the team were kept busy meeting new and existing contacts from across the industry.    

  • 2016.03.14 Journey to Singapore


    The first of eight 2500 kVA NO-BREAK KS®7e units’ arrived to its final destination in Singapore.   


    NO-BREAK KS7 Singapore NO-BREAK KS7 Singapore NO-BREAK KS7 Singapore


  • 2016.03.10 Middle East Electricity exhibition 2016


    In early March, our Middle Eastern team participated in the Middle East Electricity exhibition which was held in Dubai.  It was a great opportunity to present the many projects we have carried out in the region covering datacentres, airports and municipality applications and to share the impressive references EURO-DIESEL has received for these projects. [+]

How it works : System description

System Description

The NO-BREAK KS® is such a simple piece of equipment that one might think  of it as a conventional generator-set. It is made up of a Diesel Engine that is coupled to a Stato-Alternator, via an Electromagnetic Clutch. The Stato-Alternator is the combination of a Kinetic Energy Accumulator and a Synchronous machine.


The NO-BREAK KS® also includes a control panel and a choke/power panel.


Description of a Diesel rotary UPS: NO-BREAK KS


How does it work? 

In the heart of the NO-BREAK KS®‚ is its kinetic energy accumulator; a clever but simple system to store and retrieve kinetic energy.

The kinetic energy accumulator consists of two rotating parts: the outer rotor  runs mechanically-free around the inner rotor. (See diagram below)

The inner rotor, driven by the main shaft, rotates at 1500 rpm (50 Hz) or 1800 rpm (60 Hz). It contains two sets of windings; a three-phase AC winding and a DC winding.

Energy storage 

In conditioning mode, the AC winding is powered to generate a rotating magnetic field which turns the outer rotor to the speed of maximum 3000 rpm. However, the relative speed between inner and outer ring of the bearings is only 1500 rpm, since the shaft itself is rotating at 1500 rpm.

The  outer rotor stores kinetic energy advantageously, since the amount of kinetic energy increases quadratically with the distance from the centre of rotation.

Energy retrieval 

In independent mode, the DC winding is powered and the outer rotor is electrically coupled to the inner rotor by induction. Its kinetic energy is transferred to the inner rotor -- it drives it. This energy transfer is regulated by accurately controlling the current injected into the DC winding.

The kinetic energy accumulator is a totally brushless system.

Cross-section of the Stato-Alternator

Kinetic Energy Accumulator NO BREAK

To know how the NO-BREAK KS® operates, click here.