7SR45-Reyrolle

Reyrolle 7SR45

The Reyrolle 7SR45 Argus self powered/dual powered non-directional overcurrent and earth fault relay is developed using the latest generation of hardware technology and is available in multiple variants depending on the current transformer (CT), binary input/binary output, power supply, and communication configuration.

The Reyrolle 7SR45 numeric relay 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. The compact non-draw-out design provides front fascia to the navigation keys, LCD, and front USB port for ease of use

Self powered / auxiliary powered

10 fault records

100 event records

Password protection

Self-monitoring

Overcurrent protection functions (instantaneous and delayed)

Relay integration via Reydisp Evolution PC Software

Sensitivity of 20% nominal current

Serial interface

Hardware

4 current transformer with 1 A or 5 A Inputs

Up to 4 binary Inputs and 4 binary outputs

2 latched binary outputs, 1 changeover and 1 normally open

1 pulsed output

2 case options for mounting in various RMU's

User Interface

16 character x 2 line backlit LCD

Menu navigation keys 

4 User programmable LEDs for assigning protection functions & Phase Indications

9 predetermined LED’s for easy use

Mechanical flag

Front USB interface

Optional rear RS485 communication port