AQ-L357 Line protection IED
AQ-L357 is a line protection IED with full scheme distance protection for transmission and sub-transmission line protection applications. It integrates a full range of line protection functions along with variety of additional functions for control, measurement, monitoring and communications.
- Distance Protection with polygon or MHO characteristics
- Impedance measuring in separately six loops for phase or earth faults
- Parallel line zero sequence current compensation
- Load encroachment and power swing block characteristics
- Zone1 subcycle trip time