The Gräper company group has been among the market leaders for more than 100 years and has successfully established as authorized producer of the products of the limestone – sand bricks, concrete transformer station with an electric equipment as well as low voltage and air insulating high voltage switchgears. At the beginning of 1970s, the company engineers developed the model and introduced the production of the compact transformer station and the switch station for the distributing network 6 – 35 kV. Nowadays the Gräper company strictly abides and applies the norms such as EN 61330:1996 and EN 62271-202:2007 for the high and low voltage block transformer stations. The transformer stations are in accordance with these norms and with another related norms for the high voltage switch device (EN 62271-200:2007), which are used in Gräper stations and which are repetitively type controlled and certified. Since 2004, Gräper company has been the holder of the Quality Management Systems certificate for the projects, production, sale in accordance with EN ISO 9001:2000 norm, which was issued by certificate company TÜV NORD CERT. |
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