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quinta-feira, 13 de novembro de 2014
Case study Large Hadron Collider CERN : Borri protects the particle accelerator
CASE STUDY UPS BORRY ITALY
CERN
Large Hadron Collider (LHC), the largest and most complex
scientific instrument ever built and the highest energy particle
accelerator in the world is protected by Borri solutions.
“Made in Italy protagonist at CERN: after the success of Italian
researchers in the discovery of the Higgs Boson the world’s largest
centres for scientific research chooses the Italian UPS Borri”
Borri Spa has provided both AC and DC. After a joint analysis with experts, CERN, has opted for a distributed power protection system, with equipment of various sizes that feed, in a redundant configuration, security systems and controlled shutdown of the accelerator. All UPS units are characterized by Borri technology sinusoidal absorption input (unity power factor and harmonic current distortion less than 3%) and they are derived from B8000FXS, B9000FXS and B9600FXS series with customisations that involved special painting and the system EPO (UPS emergency Power Off ). A specific redundancy configuration is also included, with three UPS in cascade, resulting in a system tolerant to the second failure.
The protection of the auxiliary 48 Vdc systems has been developed according to the requirements of CERN, from an Oil & Gas based rectifier, RTB.e series 100 A, with a custom redundancy system, providing a dual path for both the power supply of the loads, and the charging of the backup batteries. Even the battery cabinets have been develo- ped ad hoc, to meet the higher safety and maintainability requirements of the installation. Borri UPS also protect: Atlas project data center, with a system of three B9600FXS 500 kVA UPS in parallel with a 2000 A centralised static bypass switch and 4 minutes autonomy; LHC data center, with two B9600FXS 400 kVA UPS in parallel (dual feed redundant configuration) and 10 minutes autonomy Batteries are VRLA type (sealed lead acid) in all AC UPS systems and Ni-Cd type for DC UPS systems.
FULL PAPER
http://www.borri.it/public/docs/CS_EN_CERN-Borri-14.pdf
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