11.Mesh Busbar Configuration
What is busbar?
A busbar is a metallic conductor (usually copper or aluminium) used in substations to collect and distribute electric power. It connects multiple incoming and outgoing transmission lines and equipment like transformers within the substation.
Since the busbar is a critical node in the power system, any fault on it can cause widespread outages. Therefore, fast and reliable protection is essential.
Mesh Busbar Configuration:
First, we look at the very simple representation of busbar configuration.
A Mesh Busbar Configuration is commonly used in high voltage substations, especially in systems that require high reliability and flexibility. It’s a hybrid between the double busbar and breaker-and-a-half schemes. In a mesh configuration, each circuit (line, transformer, etc.) is connected between two circuit breakers, and those breakers form a “mesh” of interconnected elements.
You can see the Bays are used to explain the working principle.
Line 1
Line 2
Transformer 1
Transformer 2
More
Single Busbar Configuration
Single Busbar with Bus section Configuration
Single Busbar with Transfer busbar configuration
Single Busbar with Bus section + Transfer bus coupler + Section Isolator configuration
Double Busbar with Bus coupler Configuration
Double Busbar with Bus coupler + Bypass Isolator Configuration
Double Busbar with Bus coupler + Transfer Buscoupler configuration