Reyrolle 7SR10
The Reyrolle 7SR10 Argus overcurrent and earth fault relay is a numerical overcurrent protection relay designed to be a simple protection solution for distribution and industrial applications.
It is developed using the latest generation of hardware technology and multiple variants, depending on the power supply, binary input/output configuration, and data communication facility, are available.
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Basic Features
- Housed in a 4U high and size 4 non-withdrawable case
- Provides protection, monitoring, instrumentation, and metering with integrated input and output logic, data logging, and fault reports
- Communication access to the relay functionality via a front USB port for local PC connection or rear electrical RS485 (optional) port for remote connection
- 2 levels of password protection
- Circuit breaker trip and maintenance counter
- Protection from thermal overload (49)
- Instantaneous overcurrent protection (50)
- Instantaneous earth fault (50N/G)
- Time delayed overcurrent protection (51)
- Time delayed derived/measured earth fault protection (51N/G)
- Time delayed sensitive earth fault protection (51SEF)
- Inrush restraint (81HBL2)
- Instantaneous sensitive earth fault (50SEF)
- Trip circuit supervision (74TC)
- Total harmonic distortion supervision (81THD)