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Table 5 Comparative analysis of the proposed methodology with conventional distance relay during various power system disturbances in IEEE-14 bus system

From: An adaptive supervised wide-area backup protection scheme for transmission lines protection

Power System Disturbances Case studies The action taken by the proposed scheme is The action taken by the conventional distance protection is
Correct
(Y/N)
Desirable
(Y/N)
Correct
(Y/N)
Desirable
(Y/N)
Fault conditions LG (70Ω, 1440 and 200 km in branch 13–12 from BUS-13) Y Y N N
LL (50Ω, 1800 and 0 km in branch 4–7 from BUS-7) Y Y N N
LLG (15Ω, 540 and 70 km in branch 1–2 from BUS-2) Y Y Y Y
LLL (60Ω, 00 and 65 km in branch 9–10 from BUS-9) Y Y N N
Contingency conditions Power Swing(at BUS-6) without fault Y Y N N
with fault Y Y Y Y
Load encroachment (at BUS-3) without fault Y Y N N
with fault Y Y Y Y
Unbalanced loading (at BUS-12) Y Y N N