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Control relay / over-current - 1/3 x 19 in | 7SJ82
The overcurrent universal protection device 7SJ82 is a control and automation device on the basis of the SIPROTEC 5 system. It is especially purposed for the protection of branches and lines. Directional and non-directional time overcurrent protection, with additional functions such as time optimization for tripping by direction comparison and protection data communication is present. As well as Recognition of static and transient ground faults in resonant grounded and isolated networks, overvoltage and under voltage protection in all required versions of power protection, active configurable or reactive power protection, frequency protection and frequency change protection for load shedding applications. Also, special overvoltage and unbalance protection for capacitance banks control, synchronized check and system interlocking, powerful automation with graphical CFC (Continuous Function Chart), integrated electrical, Ethernet port J for DIGSI Complete IEC 61850 (reporting and GOOSE) via integrated port J, two optional pluggable communication modules usable for different and redundant protocols. Product Description: (IEC 61850, IEC 60870-5-103, DNP3 (serial+TCP)