Coordination of protective elements in an electric power system

A system to coordinate protective elements in an electric power system (EPS), comprising:

• a Time vs Normalized Impedance Length (TNIL) subsystem configured to:
• determine a first plurality of times of operation of a first protective element for a plurality of fault locations in the EPS;
• determine a second plurality of times of operation of a second protective element for the plurality of fault locations in the EPS;
• a protective action subsystem to coordinate a response of the first protective element and the second protective element and to:
• establish a first pickup for the first protective element to implement a first protective action based on the first plurality of times of operation of a first protective element;
• establish a second pickup for the second protective element to implement a second protective action based on the second plurality of times of operation of the second protective element;
• detect a fault in the EPS;
• and
• implementing one of the first protective action and the second protective action based on one of the first pickup and the second pickup.