Matlab: Menggambar Kurva ‘Waktu – Arus (plug setting multifier) untuk over current relay standard inverse

 
 

tms=[0.025 0.030 0.035];

for i=1:length(tms);

for j=1:125;

psm(j)=j+0.5;

t(i,j)= tms(i)*0.14/((psm(j).^(0.02))-1);

end

end

semilogx(psm,t(1,:), psm,t(2,:),psm,t(3,:))

grid on

xlabel(‘Current(PSM) – ampere’)

ylabel(‘Time (detik)’)

title(‘Time-Current Curve’)

legend(‘tms = 0.025’,‘tms = 0.030’,‘tms = 0.035’,1)

 

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