Skip to main content

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

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

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