What does BTB mean in AIRCRAFT & AVIATION

What is a Bus Tie Breaker?

A Bus Tie Breaker (BTB) is an electrical safety device that prevents a short circuit from occurring when both power sources are connected to the same busbar in an electricity supply system. A BTB works by automatically disconnecting one of the two supply lines if it identifies that there may be abnormal conditions on either line. This prevents a high current electrical flow through one of the buses as well as reducing potential damage to all other components of the electricity distribution system.

Working Principle

When two separate power sources are connected to a single busbar, an imbalance in current can occur due to differences between them such as operating voltage or frequency. If this occurs, a BTB will detect it and open one of its switching elements which effectively breaks the connection between them and prevents any excessive or uncontrolled currents from passing through the buses. The breaker will also remain closed until normal conditions have been restored and both supplies are disconnected from each other again.

How does it Benefit Electrical System?

A Bus Tie Breaker helps to improve safety levels in electrical systems by providing protection against overloading caused by unforeseen circumstances such as mismatched voltages or frequencies arising between multiple power sources that may be connected via the same busbar. Beyond preventing potential damage due to electric shock hazards, they also help reduce energy losses associated with distributed generation systems since they reduce chances for having multiple resources operating at different levels simultaneously which would lead to increased transmission line losses. Additionally, they help reduce maintenance costs associated with replacing damaged equipment due to short circuits since these faults won’t occur if there’s proper protection provided by devices like BTBs.