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.

• Directional and non-directional time overcurrent protection with additional functions
• Optimization of the tripping times by direction comparison and protection data communication
• Recognition of static, intermitting and transient ground faults (transient function) in resonant-grounded and iso-lated networks
• Arc protection
• Overvoltage and undervoltage protection
• Frequency protection and frequency change protection for load shedding applications
• Power protection, configurable as active or reactive power protection
• Protection functions for capacitor banks, e.g. overcurrent, thermal overload, current unbalance, peak overvoltage or differential protection
• Undervoltage-controlled reactive power protection
• Control, synchrocheck and system interlocking
• Circuit-breaker failure protection
• Circuit-breaker restrike protection
• 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))
• Serial protection data communication via fiber-optic cable, two-wire connections and communication net-works (IEEE C37.94 et al.) including automatic switch 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 using IEEE 1588
• Powerful fault recording
• Additional functions for simple tests and easy commis-sioning.