The object of network protection is to selectively disconnect the faulty part of the system as quickly as possible in the event of faults occurring in high-voltage systems. As a consequence ofever higher power station outputs and the increasingly close interconnection of high-voltage networks very high demands are placed on network protection systems in terms of reliability and availability. Network protection systems with absolute selectivity therefore need a reliable and fast transmission system for the transfer of information between the stations. The SWT 3000 for teleprotection signaling in analog and digital communication networks offers the required maximum security and reliability together with the shortest command transmission time. It replaces the two teleprotection signaling devices SWT 2000 F6 and SWT 2000 D. The device can be used as a “stand-alone” unit orcan also be integrated in the PowerLink PLC system. Combinations of analog and digital interfaces are possible in both cases. The analog interface is operated in the VF range. The digital interfaces can be configured for X.21 or G703.1 (64kbit/s) or G703.6 (2 Mbit/s).
đang được dịch, vui lòng đợi..
