TELE Visits HAZET to Optimise the Grid And System Protection NA003
In mid-August, TELE visited HAZET in Vienna’s 23rd district. Together with the HAZET team, TELE had a live on-site look at how TELE grid and system protection are used and what challenges were met during the recent commissioning of the solar system. This feedback directly from the users is particularly important for us as a manufacturing company to be able to continuously develop TELE products and further optimize their handling for TELE customers. The resulting knowledge helps us to respond even more specifically to the wishes and needs of TELE users and to launch products on the market that meet the actual requirements of TELE customers, such as simplicity or ease of use. TELE research work was not even prevented by the fact that TELE had to climb up to the multi-story HAZET company building, where TELE was able to accompany the installation of the grid and system protection in bright sunshine. During the visit, TELE also shot a short video with HAZET, in which the function of the TELE device is described once again using this application.
HAZET operates a solar system with a 175-kilowatt peak (kWp), a grid, and system protection that disconnects the power generation system (in this case the solar system) from the grid in case a fault is required by law. The special feature of the grid and system protection NA003-M64 from TELE is that it combines all standards in one device and can be used universally and internationally. To be able to meet the associated demands on TELE devices in the long term requires constant adaptation and further development.
Once again, many thanks to HAZET Bauunternehmung GmbH, Stephan Berger, Christian Thell, and Harald Luger for their hospitality and good cooperation!
Discover the main character of the TELE video
TELE’s grid & system protection NA003-M64 consists of two components:
Protection relay that measures the grid voltage and grid frequency. It also contains the actual protection functions and generates the signal for grid disconnection.
1-2 tie switches that ensure the actual disconnection from the mains.
For high availability of the supply network, short-term grid disturbances must not separate the generators from the grid. This function, called Fault Ride Through (FRT), refers in particular to short-term undervoltages and overvoltages. Depending on the type and power of the energy generator, different requirements apply, those can be adjusted via the parameterization of the NA003-M64.
Impressions from TELE visit
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