350-09 - Bus Protection
Learning objectives
- Define the basic construction types for substations
- Identify the strengths and weaknesses of the six prominent bus configurations
- Define how a fault on a bus would impact each of the six different bus configurations
- Define how backup protection can be made to respond quicker to bus faults
- Define how fault bus protection can present a hazard to personnel
- Define how CT saturation causes issues with basic differential protection
- Define how high impedance relaying mitigates CT saturation effects
- Define how linear couplers completely eliminate saturation issues
Course overview
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.
The individuals involved in the development and promotion of this course do not receive any compensation or financial benefits outside of their regular employment for their work on this course.
