Buses provide a connecting backbone for multiple power sources and loads. Almost every major junction in an electrical transmission and distribution system employs a bus to connect multiple lines, feeders, power sources, and loads. Bus protection is crucial.

The Bus Protection training course introduces the six basic substation bus configurations. It also explains the various relaying systems used to protect them. This online course discusses:

• Bus construction and overview
• Bus configuration and zones of protection
• Backup, directional comparison, and fault bus protection relaying
• Current differential bus protection
• High impedance differential bus protection
• Voltage differential bus protection

Bus Protection is part of the System Protection training series.