Application of the JAYA Algorithm in Solving the Problem of the Optimal Coordination of Overcurrent Relays in Single- and Multi-Loop Distribution Systems

Table 8

Constants and relay currents for Case 2.

Fault point		Relay
		1	2	3	4	5	6	7	8
A		10	10	3.3	—	—	—	—	3.3
		2.971	2.971	5.749	—	—	—	—	5.749
B		3.45	3.45	5.1	6.9	—	—	—	—
		5.584	5.584	4.227	3.551	—	—	—	—
C	I relay	2	2	10	4	—	—	4	—
		10.035	10.035	2.971	4.9804	—	—	4.980	—
D		5	5	4	10	—	—	4	—
		4.281	4.281	4.9804	2.971	—	—	—	4.9804
E		20	6	2	—	8	—	—	4.9804
		2.267	3.837	10.035	—	3.297	—	—	10.035
F		6	20	2	—	—	8	—	2
		3.837	2.267	10.035	—	—	3.297	—	10.035

— Indicates the fault is not seen by the relay.