AQ-L390 is a line protection device with line differential protection for transmission and sub-transmission line protection applications. It integrates a full range of line protection functions as well as a variety of additional functions for control, measurement, monitoring and communications.
Two kinds of algorithms: one with the transformer in the protected zone and one with the transformer outside the protected zone.
Line differential, up to 120 km with fiber optic communication.
Redundant fiber communication option.
Mono-mode and multi-mode fiber support.
Alternative communication media available (e.g. pilot wire).
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