The EDPS soft starter can be used to replace conventional starter contactors in diesel locomotives. The basic principle of the soft starter EDPS is the combination of a power contactor with power semiconductors to achieve wear-free switching of direct currents at high battery voltages. The power semiconductor can also limit the current in the starting phase using a PWM controller.
Limiting the current increases the battery life
The battery voltage drop during the starting process is significantly reduced
A battery of smaller dimensions can be used
No sparking at the contactor due to "cold switching"
The soft start protects the starter and the starter pinion
A monitoring function counts the number of starts and failed starts that have electrical causes.