The PCS-902 provides comprehensive protection and control solutions for transmission lines with high-speed sub-cycle distance element. The PCS-902 is intended for application on overhead lines and underground cables with diverse voltage levels. These include series compensated, double- circuit, heavily loaded, weak in feed (WI), short and long lines. It can meet the requirements of single-pole or three- pole tripping; it also provides single and/or three-pole auto- reclosing functions. The PCS-902 is suitable for single and dual- breaker applications, providing optional dual CT inputs, dual breaker failure protections, dual breaker auto-reclosing and dual synchro-checks. Additionally, the relay integrates the remote/ local control of circuit breaker, disconnector and earth switch.
The PCS-902 employs a wide range of innovative patented technologies, such as DPFC (Deviation Power Frequency Component) distance protection and unique power swing blocking logic. Thus, guaranteeing accurate and reliable operations.
The PCS-902 is compatible with IEC 61850 station bus and process bus applications. It supports IEC 61850-8-1 MMS, GOOSE and IEC 61850-9-2 Sampling Value. The RJ-45 faceplate port is provided for testing and setting, allowing for smoother commissioning and maintenance.