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TY - CONF AU - Hofmann, A. AU - Aulenbacher, K. AU - Bruker, M.W. AU - Bryzgunov, M.I. AU - Denisov, A.P. AU - Dietrich, J. AU - Panasyuk, V.M. AU - Parkhomchuk, V.V. AU - Reva, V.B. AU - Weilbach, T. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Turbo Generators for Powering the HV-solenoids at the HESR Electron Cooler J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - New experiments at the planned 'High Energy Storage Ring' (HESR) require magnetised electron cooling. One of the challenges is the powering of the HV-solenoids, because they are located on HV-sections, which sit on an electrical potential inside a high voltage vessel. We discuss a Multi-MV system where the solenoids are powered by a series of cascade transformers which are in turn supplied by turbogenerators. The usage of SF6 as turbine fluid is desirable from the viewpoint of operational stability and may also lead to energy efficient operation of the turboexpanders since a Organic Rankine-cycle (so-called ORC-process) may be used instead of electrically driven compressors. The paper gives an overview of the turbo generator and ORC project: an introduction, a status report and a road map will be given. PB - JACoW CP - Geneva, Switzerland SP - 492 EP - 494 KW - solenoid KW - electron KW - high-voltage KW - power-supply KW - acceleration DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-MOPME051 UR - http://jacow.org/ipac2014/papers/mopme051.pdf ER -