The NSD600 is a plug-in unit which is used together with the Power Line Carrier ETL600 for transmission of protection commands over high-voltage power lines. Teleprotection links over power line carrier (PLC) channels provide reliable and economic means for various tasks of command transmission.
Using digital signal processing technologies, the NSD600 meets the stringent requirements for command transmission over PLC links, even under adverse channel conditions. Algorithms optimized for PLC channels guarantee dependable and secure operation, adaptive signal evaluation ensuring shortest possible transmission times for teleprotection.
ETL600 can be equipped with one or two integrated teleprotection units NSD600. Each unit supports the transmission of up to 4 simultaneous and individually programmable commands for blocking, permissive- and direct tripping.