Press
Dr. Hans Rinnhofer (45) has taken office as Chairman of the Board of Otto Junker GmbH
"With Dr. Rinnhofer we have enlisted a proven expert in the technology areas of our group of companies. Based on sound understanding of markets and products as well as his extensive international experience, he will provide valuable new impetus for our company's future development", says the Chairman of the Supervisory Board, Mr. Klaus K. Moll.
OTTO JUNKER deliver their 100th IGBT converter
OTTO JUNKER are about to supply their 100th IGBT converter to the Ossenberg high-grade steel foundry in Altena where an old induction furnace will be replaced by a state-of-the art unit of IGBT technology, equipped with a JOKS melting processor and an OCP (Optical Coil Protection System). As compared to the conventional thyristor technology, the IGBT stands out due to its inherent overload protection against current, voltage and temperature peaks, a constant power factor at the converter entry and low cooling water requirements due to indirect cooling. OTTO JUNKER have supplied this technology since 2001 and are now capable of coping with power ratings of up to 4,000 kW.
The OCP (Optical Coil Protection System) allows a complete monitoring of the temperature field between crucible and coil by using an optical measuring process.
