Technical Specifications Supports multiple power system protection function sets. Analog input for current and voltage transformer signals. Binary input and binary output channels for switch signal collection and circuit‑breaker control. Multiple communication interfaces including Ethernet and serial ports. Nominal power supply 80‑250 V DC / 85‑265 V AC. Typical power consumption 18 W. Operating temperature range ‑25 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Protection degree IP20 for cabinet rear, IP40 for front panel. Certifications include CE, IEC61850, UL compliance.
Functional Features Implements comprehensive bay protection for transmission and distribution substation. Collects analog measurement values and binary status signals. Executes local and remote control for circuit‑breakers and disconnectors. Provides event recording, fault recording and disturbance report function. Supports IEC61850, IEC60870‑5‑103 communication protocols. Front‑panel HMI realizes local parameter checking and operation. LED indicators display power, running, fault and trip status. Supports setting group switching and hardware self‑diagnosis.
Application Scenarios Mounted inside high‑voltage substation control cabinet. Used for bay‑level protection, measurement and control of transformer, transmission line and busbar. Deployed in utility power substation, industrial power plant substation. Fits new‑build and retrofit substation projects requiring IEC61850 digital communication.
Performance Parameters Protection operation time meets high‑speed power system protection requirement. Fault record stores high‑resolution sampling data. Event log records time‑stamped sequence of events with millisecond‑level timestamp. Communication data update cycle satisfies substation automation real‑time demand. Built‑in self‑diagnosis detects internal hardware failure and outputs alarm signal.
Installation Requirements Fix device firmly onto standard 19‑inch cabinet rack with mounting screws. Connect auxiliary power supply strictly follow rated voltage range and polarity. Wire CT, VT secondary signals, binary input and output circuits according to schematic diagram. Complete communication cable connection for station‑level network. Download application configuration and protection setting parameters via engineering tool.
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