All functions can be configured freely with DIGSI 5. For the application of some of the functions, you require the appropriate number of free function points within the device. The function point calculator in the online configurator provides support in determining the required number of function points for your device.

• Minimal tripping time 19 ms
• Main protection function is differential protection with adaptive algorithm for maximum sensitivity and stability even at different CT errors, CT saturation and capacitive charging currents
• Diverse distance protection methods as backup or main 2 protection available: Classic, reactance method (RMD), impedance protection for transformers
• Directional backup protection and various additional functions
• Recognition of static, intermittent and transient ground faults (transient function) in resonant-grounded and isolated networks
• Adaptive power swing blocking
• Arc protection
• Undervoltage-controlled reactive power protection
• Control, synchrocheck and system interlocking
• Powerful automation with graphical CFC (Continuous Function Chart)
• Support of single line in small and large displays
• Integrated electrical Ethernet port J for DIGSI and complete IEC 61850 functionality (reporting and GOOSE)
• Two optional pluggable communication modules usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 serial and TCP, PROFINET IO)
• Serial protection data communication over fiber-optic cable, two-wire connections and communication networks (IEEE C37.94 et al.) including automatic switch over between ring and chain topology
• High available Ethernet redundancy protocols PRP and HSR
• Cyber Security acc. NERC CIP and BDEW Whitepaper
• Phasor Measurement Unit (PMU) for synchrophasor measured values and IEEE C37.118 protocol
• Time synchronization IEEE 1588
• Powerful fault recording
• Additional functions for simple tests and easy commissioning