Technical Specifications CT:1A/5A configurable; PT:100V; Power:88‑250V DC /85‑265V AC Binary inputs:12; Communication:RS232, RS485, Ethernet; IEC61850, Modbus TCP, DNP3 Operating temperature:‑40℃~+70℃; Storage temperature:‑40℃~+85℃; Humidity:5‑95% non‑condensing Mounting:panel cut‑out mounting
Functional Features Generator differential, reverse power, loss‑of‑excitation, negative‑sequence overcurrent protection. FlexLogic custom interlock. Oscillography and sequence‑of‑event recording. Front LCD local operation.
Application Scenarios Main and backup protection for medium‑sized synchronous generators in power plants and industrial captive power stations. Spare replacement unit for generator relay retrofits.
Performance Parameters Differential response time below 40ms. High‑precision analog sampling. Large non‑volatile fault‑data storage.
Material Composition Flame‑retardant ABS front housing. Conformal coated multilayer PCB. Generator signal sampling transformers, DSP, relay assemblies, screw terminals and display module.
Structural Characteristics Integrated panel‑mount enclosure. Front LCD, keypad and LED indicators. Rear‑side field wiring terminals. Modular internal hardware. Lockable transparent front cover.
Working Principle Generator CT/VT signals feed analog terminals. DSP samples signals and runs generator‑specific protection algorithms. Trip relay outputs trigger breaker trip upon fault detection.
Installation Requirements Disconnect CT, VT and auxiliary power. Mount relay to cabinet panel. Complete wiring. Restore power, download generator protection parameters and perform function test.
Usage Notes Forbid opening energized CT secondary circuits. Ensure cabinet ventilation. Anti‑static handling for internal modules. Periodic protection function injection test.
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