Overview
The numeric relay, “Reyrolle 7SR45 Argus” Non-directional overcurrent protection, provides both definite time and inverse time overcurrent and earth fault protection functions ensuring sensitivity with an operating setting range of 0.1 to 0.2 ⋅ I rated for phase overcurrent protection. The relay is CT powered with an option for connection to an external auxiliary supply to provide additional security and communications port for connecting to SCADA.
For more detailed information on “7SR45” relay, refer to Reyrolle devices documents.
To see other supported Reyrolle relays, click here.
Related Youtube Videos
Reyrolle 7SR45 Argus – Protection relay (Product Overview by Manufacturer)
7SR45 Functional Diagram
Protection Functions
Instantaneous Overcurrent Protection (50)
Logic Diagram of the Instantaneous Overcurrent Protection (50)
Instantaneous Overcurrent Protection (50) Setting parameters
Instantaneous Overcurrent Protection (50) Technical Data
Time-Delayed Overcurrent Protection (51)
Logic Diagram of the Time-Delayed Overcurrent Protection (51)
Time-Delayed Overcurrent Protection (51) Setting parameters
Time-Delayed Overcurrent Protection (51) Technical Data
Instantaneous Derived Earth Fault Protection (50N)
Logic Diagram of the Instantaneous Derived Earth Fault Protection (50N)
Instantaneous Derived Earth Fault Protection (50N) Setting parameters
Instantaneous Derived Earth Fault Protection (50N) Technical Data
Time-Delayed Derived Earth Fault Protection (51N)
Logic Diagram of Time-Delayed Derived Earth Fault Protection (51N)
Time-Delayed Derived Earth Fault Protection (51N) Setting parameters
Time-Delayed Derived Earth Fault Protection (51N) Technical Data
Instantaneous Measured Earth Fault Protection (50G)
Logic Diagram of the Instantaneous Measured Earth Fault Protection (50G)
Instantaneous Measured Earth Fault Protection (50G) Setting parameters
Instantaneous Measured Earth Fault Protection (50G) Technical Data
Time-Delayed Measured Earth Fault Protection (51G)
Logic Diagram of Time-Delayed Measured E/F Protection (51G)
Time-Delayed Measured E/F Protection (51G) Setting parameters
Time-Delayed Measured E/F Protection (51G) Technical Data
Switch onto Fault Protection (50LC/SOTF)
Logic Diagram of Switch onto Fault Protection (50LC/SOTF)
Switch onto Fault Protection (50LC/SOTF) Setting parameters
Switch onto Fault Protection (50LC/SOTF) Technical Data
Operating Time for Switch onto Fault with Binary Outputs
Operating Time for Switch onto Fault with Pulse Output
Thermal Overload Protection (49)
Logic Diagram of the Thermal Overload Protection (49)
Thermal Overload Protection (49) Setting parameters
Thermal Overload Protection (49) Technical Data
Thermal Overload Protection Heating and Cooling Characteristic
Thermal Overload Protection Behavior in Case of Power Supply Failure (Aux/CT Power)
2nd Harmonic Block/Inrush Restraint (81HBL2)
Logic Diagram of the 2nd Harmonic Block/Inrush Restraint (81HBL2)
2nd Harmonic Block/Inrush Restraint (81HBL2) Setting parameters
2nd Harmonic Block/Inrush Restraint (81HBL2) Technical Data
Pickup and Trip Status during Inrush
General Features
Overcurrent Functions(50/50N/50G , 51/51N/51G) Characteristic curves
Instantaneous Overcurrent (51/51G/51N)
Time-Delayed Overcurrent (51/51G/51N)
Binary Inputs/Outputs
Binary Inputs Logic & Configuration
Binary Outputs Logic
General Device Data
