Add-on stabalization technique in Bus Bar protection

 Introduction: In earlier post we have discussed about Bus bar differential protection.

For Low impdance bus bar protections, different manuafacturer use different algorithm to avoid mal-operation of relay during CT saturation.

Add-on stabalization technique: One of the method is use of Add-on stabalization technique for detecting internal / external faults. Add-on stabalization function adds additional current to biasing current.