Three-Phase Rectifiers for Railways and Electrical Substations
SECOM realizes power rectifiers for substationsfor traction applications, for the main European railways, the underground and tram lines. The three-phase rectifiers are designed, manufactured and tested according to EN50328 and IEC 60146-1 standards.
These devices are natural air cooling diode or thyristor bridges that increase the service's reliability and continuity and are made in 6, 12 or 24 pulse configurations.
It is possible to create bridges with a number of parallel diodes considering solutions with N + 1 diodes, or solutions with bridges in series or in parallel.
Here are some examples:
| Silicon rectifier 5400 kW - 3000 Vcc | |
|---|---|
| Configuration | Twelve-phase Graetz bridge | Nominal power | 5400 kW | Maximum voltage | 4000 V | Rectified rated current | 1500 Adc |
| Rectifier for wheeled structure | |
|---|---|
| Power | 1200 kW | Nominal tension | 750 V | Rated current | 1200 A | Current for 2 hours | 1800 A | Current for 1 minute | 3600 A | N° of diodes | 6 | Reverse voltage | 2200 Vrrm |
