Technical Specifications Configured analog input channels for current and voltage signals. Binary input and binary output channels for status acquisition and control output. Supports IEC61850, IEC60870‑5‑103 communication protocols. Auxiliary power supply 80‑250 V DC / 85‑265 V AC. Typical power consumption 18.5 W. Operating temperature ‑25 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing humidity 5%‑95%. Front‑panel protection class IP40, rear cabinet‑side IP20. Certifications include CE, IEC61850, UL.
Functional Features Provides bay‑oriented power system protection function. Realizes electrical quantity measurement and switch status monitoring. Supports local and remote control of circuit‑breakers and disconnectors. Stores sequence of events, disturbance records and fault reports. Equipped with front‑panel man‑machine interface for local viewing and parameter operation. Multi‑LED status indication for power, operation, alarm and trip events. Built‑in hardware self‑diagnosis monitors internal operating condition.
Application Scenarios Applied in high‑voltage and medium‑voltage substation bay control and protection. Suitable for power utility substation and industrial plant internal power substation. Used for line, transformer and busbar bay protection and control. Adopts for substation automation project with customized channel requirement.
Performance Parameters Protection action speed conforms to power grid protection standard. Event log provides millisecond‑accurate time stamp. Disturbance recorder captures high‑speed sampling data during power fault. Communication refresh rate meets substation real‑time monitoring requirement. Hardware fault triggers alarm output without disturbing unrelated channels.
Installation Requirements Securely fasten unit to standard 19‑inch cabinet rack. Connect auxiliary power supply within rated voltage range. Wire CT, VT, binary input‑output circuits strictly per engineering schematic. Connect station‑level communication cables. Download project configuration and protection setting parameters by supporting engineering software. Complete protective grounding according to substation grounding specification. Inspect LED indication status after power‑on.
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