Disconnecting and connecting under load.
The function of the main switch is to disconnect the current flow between the overhead contact line and the electrical equipment of the locomotive. Our low-maintenance load switches ensure reliable spark quenching and can be switched in phase-controlled mode. The electric vacuum main switch (VHS) does not require a pneumatic line.
|Nominal voltage||15kV / 25kV|
|Nominal frequency||16.7Hz / 50Hz|
|Maximum voltage periodic||19kV / 30kV|
|Nominal current Thermal||1'000 A|
|Breaking current||25 kA|
|Rated short-time current||40 kA; 100ms|
|Rated Surge Current||63 kA|
|Switch-on time||< 60ms|
|Switch-off time||< 60ms|
|Power consumption control circuit||34W|
|Actuation pressure||5 to 10 bar|
|Air consumption per switching cycle||1l|
Environment & Safety
|Ambient temperature||-40°C to +70°C|
|Impact and vibration resistance||to IEC 61373|
|Isolation||Creepage distance / striking distance to EN50124-1|
- Simple VHS
- Double VHS
- Fully insulated
Main switch in double version.
Due to the precise production and the well thought-out construction, the maintenance costs fall to a minimum.
Design and arrangement according to customer requirements. Earthing isolators or balls can be optionally selected, as well as fully insulated, external insulation sections.