SEL-787-3E

Transformer Protection Relay

Three-terminal current differential protection
5-inch color touchscreen display with 8 pushbuttons
Power supply: 110–250 Vdc, 110–240 Vac
125 Vdc/Vac digital input (DI)
Standard ports plus dual 10/100BASE-T Ethernet and EIA-232 rear
Advanced communications protocols, including IEC 61850 Edition 2
Phase current input (5 A) and neutral current input (5 A) for restricted earth fault (REF)
4 DI/4 digital outputs electromechanical
3 voltage inputs (300 Vac)
6-phase ac current input