Coordination of dual setting overcurrent relays in microgrid with optimally determined relay characteristics for dual operating modes

Protection and Control of Modern Power Systems

Table 9 Primary-Backup relay pair for different fault locations in 18 bus microgrid system

Fault location	Relay pair (RP)	Primary relay	Backup relay (dual)	Fault location	Relay pair (RP)	Primary relay	Backup relay (dual)	Fault location	Relay pair (RP)	Primary relay	Backup relay (dual)
L1	RP1	R1	R3	L7	RP26	R13	R9	L15	RP51	R29	R28
	RP2	R1	R5		RP27	R13	R11		RP52	R30	R32
	RP3	R1	R7		RP28	R14	R21		RP53	R30	R33
	RP4	R2	R22	L8	RP29	R15	R10	L16	RP54	R31	R20
L2	RP5	R3	R1		RP30	R16	R12		RP55	R32	R30
	RP6	R3	R5		RP31	R16	R17		RP56	R32	R33
	RP7	R3	R7		RP32	R16	R19	L17	RP57	R33	R30
	RP8	R4	R26	L9	RP33	R17	R12		RP58	R33	R32
L3	RP9	R5	R1		RP34	R17	R16		RP59	R34	R37
	RP10	R5	R3		RP35	R17	R19	L18	RP60	R35	R34
	RP11	R5	R7		RP36	R18	R23		RP61	R35	R37
	RP12	R6	R27	L10	RP37	R19	R12	L19	RP62	R37	R34
L4	RP13	R7	R1		RP38	R19	R16		RP63	R38	R39
	RP14	R7	R3		RP39	R19	R17		RP64	R38	R41
	RP15	R7	R5		RP40	R20	R31	L20	RP65	R39	R38
	RP16	R8	R28	L11	RP41	R21	R14		RP66	R39	R41
	RP17	R8	R29		RP42	R22	R2		RP67	R40	R43
L5	RP18	R9	R11	L12	RP43	R23	R18	L21	RP68	R41	R38
	RP19	R9	R13		RP44	R24	R25		RP69	R41	R39
	RP20	R10	R15	L13	RP45	R25	R24		RP70	R42	R44
L6	RP21	R11	R9		RP46	R26	R4	L22	RP71	R43	R40
	RP22	R11	R13	L14	RP47	R27	R6		RP72	R44	R42
	RP23	R12	R16		RP48	R28	R8
	RP24	R12	R17		RP49	R28	R29
	RP25	R12	R19		RP50	R29	R8