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3. Continuous catenary input converter
In Europe, the three main sources of continuous power supply are :
750 V (RATP, England...) ;
1,500 V (SNCF, Hollande...) ;
3,000 V (Belgium, Spain, Italy...).
The input converter for traction units powered by continuous catenary is a "current chopper", or simply "chopper". Depending on the configuration of the chopper, energy is transferred from the supply line to the motor, or vice versa.
3.1 Railway-specific features
In railway applications, the essential specificity of the chopper lies in its electromagnetic compatibility with trackside signalling circuits. Before tackling this aspect, it is worth presenting...
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Continuous catenary input converter
Single-phase catenary input converter
