手法を比較

	保護リレー協調	潮流計算
分野	電気工学	電気工学
系統	Process / pipeline	Process / pipeline
提唱年	1956	1956
提唱者	C. Russell Mason	Ward and Hale
種類	Computational pipeline	Computational pipeline
原典	Mason, C. R. (1956). The Art and Science of Protective Relaying. General Electric.	Saadat, H. (2010). Power System Analysis (3rd ed.). PSA Publishing.
別名	relay coordination study, protection scheme design, selective overcurrent protection	load flow analysis, power flow study
関連	4	5
概要	Protection relay coordination ensures that when a fault occurs, the relay nearest to the fault operates first, isolating only the faulted section while keeping healthy portions of the network energized. This selective clearing strategy minimizes service disruption and is achieved by carefully coordinating pickup currents and time delays across a series of relays. It is fundamental to reliable power system operation.	Power flow analysis, also called load flow study, is a computational method that determines the steady-state voltage, current, and power distribution across all buses in an electrical power system. Developed by Ward and Hale in 1956, it is fundamental to power system planning, operation, and optimization.