
Product Description
The ABB NSD570 represents a proven solution in teleprotection technology, engineered to safeguard critical power transmission infrastructure through high-speed communication channels. This equipment enables differential protection, distance protection, and transfer trip schemes across substations, ensuring grid stability and rapid fault isolation.
Core Technical Capabilities
Equipped with advanced digital signal processing, the NSD570 supports power line carrier (PLC) communication over high-voltage transmission lines. It operates across multiple frequency bands with adaptive filtering to maintain signal integrity in electrically noisy environments. The unit features built-in diagnostics, remote monitoring interfaces, and compliance with IEC 60834 teleprotection standards.
Application Scenarios
Deployed in utility substations, the NSD570 integrates seamlessly with protective relays to coordinate tripping decisions across line terminals. It excels in long-distance transmission corridors where fiber optics are unavailable, providing a cost-effective alternative for pilot wire schemes. The equipment supports both analog and digital relay interfaces, enabling retrofits in legacy installations and greenfield projects alike.
System Integration & Performance
The NSD570 interfaces with SCADA systems via standard protocols, offering real-time status reporting and alarm management. Its modular architecture allows field-configurable channel assignments, frequency tuning, and output logic customization. With operating temperature ranges from -40°C to +70°C and ruggedized enclosures, the unit withstands harsh substation environments while maintaining sub-millisecond response times critical for protection coordination.
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