Transformer differential protection (ANSI 87)
Instantaneous overcurrent protection in differential circuits (ANSI 87)
High impedance restricted earth fault protection (ANSI 87N)
Two stages overcurrent protection (ANSI 50, 51)
Two stages earth fault protection (ANSI 50N, 51N)
Overload protection (ANSI 49)
Current circuits supervision (ANSI 52)
Analogue inputs (current): 6 pcs. (RTI 402), 9 pcs. (RTI 403)
Binary inputs: 16 pcs.
Binary outputs: 9 pcs.
Interfaces (connection to SCADA):
- RS 485 electrical: RTI 402/3, RTI 402i/3i
- Interface module (Ethernet/Optical/Electrical): RTI 402i/3i