a) Draw the sequence network and calculate the sub-transient fault current for a dead short circuit on one phase to ground at bus 4 with fault impedance j1.78 p.u for the system shown in Fig. The system data's are Machine 1: Xd”=j0.21p.u , X2=j0.4p.u; X0= j0.55p.u ; Machine 2: Xd”=j0.21p.u , X2=j0.4p.u; X0= j0.55p.u ; Transformers T1 and T2 : X1=X2=X0= j1.2p.u The transmission line reactance X1=X2= j0.21p.u and X0=0.97 p.u.
a) Draw the sequence network and calculate the sub-transient fault current for a dead short circuit on one phase to ground at bus 4 with fault impedance j1.78 p.u for the system shown in Fig. The system data's are Machine 1: Xd”=j0.21p.u , X2=j0.4p.u; X0= j0.55p.u ; Machine 2: Xd”=j0.21p.u , X2=j0.4p.u; X0= j0.55p.u ; Transformers T1 and T2 : X1=X2=X0= j1.2p.u The transmission line reactance X1=X2= j0.21p.u and X0=0.97 p.u.
Chapter8: Lighting Branch Circuit For The Front Bedroom
Section: Chapter Questions
Problem 7R: a. What is the ampere rating of circuit A16? _________________ b. What is the conductor size of...
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a) Draw the sequence network and calculate the sub-transient fault current for a dead short circuit on one phase to ground at bus 4 with fault impedance j1.78 p.u for the system shown in Fig. The system data's are
Machine 1: Xd”=j0.21p.u , X2=j0.4p.u; X0= j0.55p.u ;
Machine 2: Xd”=j0.21p.u , X2=j0.4p.u; X0= j0.55p.u ;
Transformers T1 and T2 : X1=X2=X0= j1.2p.u
The transmission line reactance X1=X2= j0.21p.u and X0=0.97 p.u.
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