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ABB RET670｜Relay Protection｜
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- Analog input AI
10 CT currents (1A/5A adaptive), 4 PT line voltages of 100V; sampling accuracy of ≤± 0.5%, high-precision recording of fault transients
Digital remote signaling DI
16 way isolated DC remote signaling (matching device working power supply 110/220V DC) with wire break self-test
Trip output DO
12 high-power relay contacts (250VAC/5A), used for tripping switches on all sides, neutral point knife switches, and local sound and light alarms
Local front USB port: constant value upload and download, fault recording and export, firmware upgrade
- Analog input AI
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