Technical Specifications Complete motor‑protection function library including overload, locked‑rotor, phase‑unbalance, earth‑fault and negative‑sequence protection. Custom‑configured analog input, binary input and binary output channels. Supports IEC61850, Modbus TCP, IEC60870‑5‑103 communication protocols. Auxiliary power supply 80‑250 V DC / 85‑265 V AC. Typical power consumption 12.6 W. Operating temperature ‑25 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Front‑panel IP40, rear terminal‑side IP20. Complies with CE and IEC standards.
Functional Features Implements full‑range protection for medium‑voltage industrial motors. Measures multi‑group motor electrical parameters including current, voltage, power and thermal load. Collects position signals of motor circuit‑breaker, supports local and remote motor start‑stop control. Saves fault event records and high‑resolution disturbance waveform data. Front‑panel man‑machine interface realizes local status viewing and parameter modification. LED indicator array displays power, running, trip and alarm information. Built‑in hardware self‑diagnosis detects internal component faults and outputs alarm signals.
Application Scenarios Mounted inside medium‑voltage motor control cabinet. Used for motor protection and monitoring of heavy‑industry production lines. Suitable for industrial automation projects with special hardware configuration demands.
Performance Parameters Protection response time meets medium‑voltage motor‑protection requirements. Disturbance recorder captures fault transient sampling data. Event log supports millisecond‑level time‑stamp recording. Measurement accuracy satisfies industrial monitoring standards. Internal hardware faults generate definite alarm output.
Installation Requirements Fix device firmly inside medium‑voltage motor control cabinet. Connect auxiliary power supply strictly within rated voltage range. Complete CT, VT and binary‑loop wiring according to engineering schematic drawings. Connect communication cables for remote monitoring function. Download motor‑protection settings and project configuration files through supporting engineering software. Implement reliable protective grounding complying with industrial specifications. Verify front‑panel LED working status after power‑on.
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