Technical Specifications Multi‑channel analog current‑voltage input, binary input and relay trip output contacts. Multiple communication interfaces. Auxiliary DC working power supply. Operating temperature ‑25 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Built‑in fault event recording function.
Functional Features Samples current and voltage signals from power system in real‑time. Executes transformer‑oriented multi‑protection logic algorithm. Outputs trip and control contact commands. Realizes local man‑machine operation and parameter setting. Uploads measurement data, alarm information and fault waveform records to upper substation monitoring system. Front‑panel LED indicators display device running, protection activation and fault status. Built‑in comprehensive self‑diagnosis monitors hardware channel and internal circuit condition.
Application Scenarios Spare numerical protection IED for power substation transformer bay. Widely applied in power plant and industrial substation protection cabinet renovation and maintenance.
Performance Parameters High‑speed protection logic response performance. High‑precision electrical quantity measurement capability. Complete fault event recording function.
Material Composition Metal cabinet‑mount housing. Internal main processing board, analog sampling board, binary input‑output board and human‑machine interface assembly. Screw‑type wiring terminals for signal, power and communication.
Structural Characteristics Standard 19‑inch panel‑mount IED structure. Front side equipped with display screen, operation keys and status LED indicators. Rear side fitted with multi‑group signal, power and communication wiring terminals.
Working Principle After power‑on self‑check, RED615 collects current and voltage analog signals and binary status signals. Protection algorithm runs continuously. Measurement data, fault events and waveform records are uploaded via communication interface.
Installation Requirements Complete secondary current‑voltage wiring, binary input‑output wiring, power supply and communication wiring strictly follow drawing. Restore auxiliary power, download protection setting parameters, verify measurement value, protection logic and communication upload function.
Usage Notes Secondary current circuit shall not be open‑circuited during wiring operation. Hot‑plug under powered state is prohibited. Complete protection setting verification after commissioning.
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