Local Breaker Backup (LBB) Protection-Learn in 03 easy steps
What is a Local Breaker Backup (LBB) Protection? As the name suggests Local Breaker Backup (LBB) protection is used as backup protection in case of failure of circuit breaker , it is also called breaker failure relay. Normally when a fault occurs ,different protective relays sense the fault and send tripping command to master trip … Read more