Abstract: 637-301E fg relay
Contextual Info: J t n - p nio-No. j| INFORMATION ^ E iB R ^ ^ C /F R . P r o m r D a le RFR, April 19S1 Edition 1 . <ABB Relays y - RK 637-301 E flifl. P *S ยป 7&51 Supersedes RF 6 3 7 -1 9 ? 1 RADSS Bus Differential Protection Bus Coupler C P s disconnection INTRODUCTION