Wind Type Failure Selection Device (50F)

Technology that supports high-density and high-speed operations.

Our company offers a "Window-type Fault Selection Device (50F)" that continuously monitors the feeding current within a fault detection window defined by the current setting value I (Y-axis) and time axis ΔT (X-axis). When the current exceeds the ceiling (setting value) of the window, it is judged as a fault. This device is installed in the feeding circuit of the DC electrified section and features a constant display function for the protective circuit current. There are two types available: 2 circuits/unit and 4 circuits/unit, which enhance reliability through dual current detection. Additionally, it detects feeding faults by continuously monitoring the current increase amount (increment value iw) at regular intervals (40/80ms). 【Features】 ■ Suitable for high-acceleration, high-density, and large-capacity trains ■ Compatible with regenerative train operation ■ Quick detection, visible observation of fault current, and easy estimation of fault current ■ Sufficient reliability, compact design, and low cost ■ By adding a function to distinguish vehicle faults (optional), it prevents unnecessary opening of the DC high-speed circuit breaker at the substation during vehicle faults. *For more details, please feel free to contact us.

DC Power SupplySubstation equipment