Download - Cern_en

Transcript
Page 1: Cern_en

RG.Cern_d_040622

AC/DCconverterfor the European LinearParticle AcceleratorCERN near Geneva

l

l

l

l

l

l

l

High-precision current sourcefor high current at low voltage,up to 13 kA / 18 V

Compact, modular designin 19-inch cabinets

Basic structure:Chopper – transformer –3x rectifier

Water coolingfor high power density

Redundancy using multipleparallel-switched currentsources allows maintenanceduring operation

2 different systems

particle deflection

particle acceleration

Stringentqualification procedure;Transtechnik was the onlyprovider who met therequirements for the13-kA system

– ±600 A / 40 V( )

– 13 kA or 20.5 kA / 18 V( ,alpha experiment)

Input voltage

Chopper clock frequency

Output current

Output voltage

Output power

Parallel switching (13 kA)

Quantities

400 V AC3

23 kHz

0 A through 13.0 kA

0 V through 18 V

0 W through 234 kW

5

±600 A: 50 cabinets13 kA: 18 systems

of 5 cabinets each20.5 kA: 1 system = 8 cabinets

individual cabinets,regulated load distribution

Technical data, 13-kA system

The world's largest particle accelerator is being constructed in the vicinity ofGenevaAirport. The main underground ring of the LHC (Large Hadron Collider)has a circumference of 27 km.

Technical data subject to change. © Transtechnik 07/2004 RG.Cern_e_040716

CERN LHC: Basic research with Transtechnik converters

Photo: CERN

Transtechnik GmbH & Co. KG . Ohmstrasse 1 . 83607 Holzkirchen . Germany . Phone +49-8024-990-0 . Fax +49-8024-990-300Internet: http://www.transtechnik.com . email: [email protected]