- Advanced Protection
Protect grounded-wye transformers with sensitive restricted earth fault (REF) elements. Provide volts/hertz protection with frequency tracking from 20 to 70 Hz for generator step-up and other variable frequency applications. Implement load shedding and other control schemes with over- and underfrequency and over- and undervoltage elements.
Flexible and Easy Communications
Apply copper or fiber, single or dual fiber Ethernet (DNP3, IEC 61850, Modbus), and up to 4 serial ports.
Flexible I/O for Local Control and System Applications
The base unit includes three digital outputs and two digital inputs. There are three card slots for optional SELect I/O cards including the following:
- 3 digital inputs / 4 digital outputs / 1 analog input (3 DI / 4 DO / 1 AI)
4 digital inputs / 4 digital outputs (4 DI / 4 DO)
4 analog inputs / 4 analog outputs (4 AI / 4 AO)
8 digital inputs (8 DI)
Serial communication (EIA-232 / EIA-485)
10 internal RTD inputs (or add 12 external RTD inputs with an SEL-2600 RTD Module)
Neutral ac current input with three-phase ac voltage inputs (1 ACI / 3 AVI)
Neutral ac current input (1 ACI)
Protect equipment from harsh environments and airborne contaminants such as hydrogen sulfide, chlorine, salt, and moisture.
Learn more about conformal coating.