Power plant systems can be extremely complicated. A schematic diagram can often help: it can represent an entire system of equipment as a single symbol as long as they perform one function.
For an Overview of Power Plants (especially nuclear!), click here.
This website was prepared by Elizabeth K. Ervin under the award number NRC-38-08-915 from the U. S. Nuclear Regulatory Commission. The statements, findings, conclusions, and recommendations are those of the author(s) and do not necessarily reflect the view of the U. S. Nuclear Regulatory Commission.