Voltage Limiting Device Panel
The VLD system prevents any voltage potential increase from occurring between the return circuit and earth caused by faults or short-circuits.
VLD respects the limits of maximum permissible touch voltage as defined by EN 50122-1 and EN 50122-3 standards. The fast actuation is guaranteed by thyristors combined with a NC contactor that provide the long-term closing.
The integrated systems are reliable solutions based on our yearlong technical experience.
- DC rated voltage: 750V, 1500V and 3000V
- Maximum current: 20kA, 50kA and 100kA
- Fast actuation by thyristor module
- Slow activation by NC contactor
- Local / Remote control
- Reliability and long lifetime
- Compliant with EN 50526-2 standard
|Class according to EN 50526-2||4.1 / 4.2|
|Nominal Voltage||[Vdc]||750 / 1500 / 3000|
|Making capacity||[kAdc]||25 / 50 / 100|
|Actuation time||< 5ms (by thyristors)|
|Execution||Fixed / withdrawable|
|Control type||Automatic / Local / Remote|
|Protection||overvoltage DC (45) / overvoltage AC (59) / Maximum current DC (76)|
|Thyristor electronic control||M|