NR has released true innovative PCS series protection & control devices addressing fast and reliable protection and automation for modern digital substations and power plants. It features an extensive functional library, programmable logic and configurable I/O. Hosted on a multi-processor platform, two independent data acquisition paths
implement two-out -of- two logic to prevent any mal-operation due to hardware failure.
To enhance accuracy of data sampling, frequency tracking function is used to trace the real-time current/voltage value.
The PCS series protection & control devices are fully compliant with IEC 61850 station bus and GOOSE process bus, and support both conventional :

• Electro-magnetic CT/VT and
• Electronic CT/VT