Technical Specifications Order‑configured analog current‑voltage input channels, binary input ports, relay output contacts. Multi‑protocol communication interfaces. Auxiliary DC operating power supply. Operating temperature ‑25 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. On‑board event log and fault waveform storage.
Functional Features Real‑time sampling of feeder secondary current and voltage signals. Executes configurable over‑current, earth‑fault and voltage‑related protection algorithms. Drives relay contacts for circuit‑breaker trip‑close operation. Supports local parameter setting and status browsing via front‑panel HMI. Uploads measurement data, protection action events and disturbance records to upper monitoring system. Front‑panel LED indicators show device running, protection activation and fault alarm condition. Built‑in hardware self‑diagnosis detects analog channels, binary I/O and internal circuit abnormalities.
Application Scenarios Spare configured feeder protection IED for medium‑voltage distribution substation. Applied in power distribution cabinet maintenance and equipment replacement projects.
Performance Parameters Reliable protection action response performance. High‑precision electrical measurement capability. Stable local fault‑data storage function.
Material Composition Metal substation‑resistant housing. Internal main processing board, analog sampling assembly, binary input‑output module and front‑panel human‑machine interface unit. Rear‑side screw‑type wiring terminals for secondary signals, power supply and communication cables.
Structural Characteristics Cabinet‑panel embedded installation structure. Front side equipped with display screen, operation keys and multi‑group status LED indicators.
Working Principle After power‑on self‑check completes, REF615E‑G HBFEAEAGNDA1ABA1XG cyclically samples secondary analog and binary signals. Protection logic runs continuously. When fault condition meets setting values, output relays perform trip action.
Installation Requirements Complete CT‑VT secondary wiring, binary I/O wiring, power supply and communication wiring following engineering drawings. Restore auxiliary power supply, download matching protection setting parameters, verify measurement reading, protection logic and remote data upload function.
Usage Notes Strictly prevent CT secondary loop open‑circuit during wiring work. Hot‑plug under powered state is prohibited. Carry out full protection setting verification after commissioning.
There are no reviews yet.