Check Synchronising – Reyrolle 7SR157
The Reyrolle 7SR157 Argus is a combined check and system synchronising relay designed to carry out controlled closing of a circuit breaker using measurements of the line and bus voltages.
![Check Synchronising – Reyrolle 7SR157 Check Synchronising Reyrolle 7SR157](https://assets.new.siemens.com/siemens/assets/api/uuid:5dd6ff14-d55e-4bbb-8e9b-330d04f763eb/width:100/quality:low/Check-Synchronising-Reyrolle-7SR157.png)
The Reyrolle 7SR157 Argus is a combined check and system synchronising relay designed to carry out controlled closing of a circuit breaker using measurements of the line and bus voltages.