Functions :

DIGSI 5 permits all functions to be configured and combined as required.

• Transformer differential protection for two-winding transformers with versatile, additional protection functions
• Transformer differential protection for phase-angle regulating transformers of the single core type
• Universal usability of the permissible measuring points
• Applicable from average up to extra-high voltage
• Protection of standard power transformers, auto transformers, short lines, cables, longitudinal and shunt reactors, as well as motors
• Increased sensitivity with near-neutral-point ground faults through a separate restricted ground-fault protection
• Flexible adaptation to the transformer vector group
• Controlling closing and overexcitation processes
• Safe behavior in case of current-transformer saturation with different degrees of saturation
• Adaptive adaptation of the operate curve to the transformer tap position
• Arc protection
• Graphical logic editor to create powerful automation functions in the device
• Single line representation in small or large display
• Integrated electrical Ethernet RJ45 for DIGSI 5 and IEC 61850 (reporting and GOOSE)
• Up to 2 optional pluggable communication modules, usable for different and redundant protocols (IEC 61850-8-1,IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 serial and TCP, PROFINET IO)
• Serial protection data communication via optical fibers, two-wire connections and communication networks (IEEE C37.94, and others), including automatic switchover between ring and chain topology
• PQ-Basic: voltage unbalance; voltage changes: overvoltage, dip, interruption; TDD, THD and Harmonics
• Reliable data transmission via PRP and HSR redundancy protocols
• Extensive cybersecurity functionality, such as role-based access control (RBAC), protocolling security-related events, signed firmware or authenticated network access IEEE 802.1X
• Simple, quick and secure access to the device via a standard Web browser to display all information and diagnostic data, as well as vector diagrams, single-line and device display pages
• Time synchronization using IEEE 1588
• Powerful fault recording (buffer for a max. record time of 80 sec. at 8 kHz or 320 sec. at 2 kHz)
• Auxiliary functions for simple tests and commissioning