Precise error and direction detection with the SGI series

The SGI fault direction indicator enables reliable detection of earth faults and short circuits, including fault current direction, in rigidly earthed, resistively earthed, isolated, and compensated medium-voltage networks. Multiple detection algorithms and extensive measurement and configuration options make the SGI particularly versatile. Parameterization is carried out entirely via an OLED display with rotary encoder buttons, without the need for external software. In addition, the SGI supports data logging, remote integration, and a battery-free power supply with long-term buffer.

• Fault indication for ground faults and short circuits in all grid types
• Multiple detection algorithms (threshold value, di/dt, residual voltage, wiper)
• OLED display for viewing, configuration, and commissioning without a PC
• microSD card for error logging, event logging, and firmware updates
• Modbus RTU interface and four freely configurable relays