TRAMAG Low Harmonic Filter (LHF) Chokes for trouble-free operation of Island-Power-Supplies

Separated from the public interconnected power grids operated by large energy supply companies, technologically complex drives and automation systems in so-called island grids can also be supplied with electrical energy without interference, which is usually generated by power-adapted generators.

“Ready for the island” – a German saying for need of a break or holiday – this is how our TRAMAG-LHF-chokes could be described in this context, which are used, for example, in generator-operated island grids for maritime shipping.

Individual solutions from our TRAMAG specialists

Connected upstream of the converter, which among other things electrically controls the motors for ship rudder systems, the LHF choke ensures the required power quality by reducing undesired mains feedback. It thus protects consumers connected in parallel and the generator itself from disturbing and damaging harmonics in the stand-alone mains. The TRAMAG-LHF choke, which has been specially designed for this purpose, ensures that the so-called THDi (Total Harmonic Distortion of Current) value remains below 10%, thus keeping the superimposition of the sine wave fundamental oscillation as low as possible.

For years, customers all over the world have trusted in TRAMAG’s solution competence for the use of transformers, chokes and filters for a wide variety of electrotechnical applications, including the trouble-free operation of island power supplies.

This also includes local grids that are operated with regenerative energy generation, e.g. from photovoltaic systems. For these applications, too, our employees in sales, development and production use their experience, knowledge and work to ensure stable power quality and thus a safe power supply with transformers, chokes and filters from TRAMAG.

We look forward to your request.