Synchronizing - Reyrolle 7SR157
The Reyrolle 7SR157 check and synchronising protection device has been specifically designed to carry out control closing of a circuit breaker using the measurement of the line and bus voltage.
![Synchronizing - Reyrolle 7SR157 Synchronizing - Reyrolle 7SR157](https://assets.new.siemens.com/siemens/assets/api/uuid:ea6f5580defbea584ef17bc644e08cf68349870a/width:100/quality:low/Synchronizing-Reyrolle-7SR157.jpg)
The Reyrolle 7SR157 check and synchronising protection device has been specifically designed to carry out control closing of a circuit breaker using the measurement of the line and bus voltage.