RED 670 Single Line Diagram

Devices and description of this sample SLD 7RED 670: Main-1 Differential / Distance Protection 7SD522: Main-2 Differential / Distance Protection 7VK87: CB Fail Protection Relay with Backup DOC/DEF Protection for OHL bays1 7KE85: Disturbance Recorder 7SD82: Main-1/2 Cable Differential Protection 7UT82: Low Impedance Restricted Earth Fault Protection 7SJ82: CB Fail Protection Relay with Bac kup […]