(a) The reactance's of the alternator during the periods of the subtransient, transient and steady state periods are following, Leakage reactance(XL)=0.15 ohm, Damper winding reactance(Xp)3D 0.24 ohm Field winding reactance(X)3D0.44 ohm and Armature reactance (Xm)= 0.7 ohm. Find the value of the transient and synchronous reactance during the sub- transient and steady state conditions.
(a) The reactance's of the alternator during the periods of the subtransient, transient and steady state periods are following, Leakage reactance(XL)=0.15 ohm, Damper winding reactance(Xp)3D 0.24 ohm Field winding reactance(X)3D0.44 ohm and Armature reactance (Xm)= 0.7 ohm. Find the value of the transient and synchronous reactance during the sub- transient and steady state conditions.
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Transcribed Image Text:(a) The reactance's of the alternator during the periods of the subtransient,
transient and steady state periods are following,
Leakage reactance(XL)=0.15 ohm, Damper winding reactance(Xp)= 0.24
ohm
Field winding reactance(X;)=0.44 ohm and Armature reactance (Xm)= 0.7
ohm.
Find the value of the transient and synchronous reactance during the sub-
transient and steady state conditions.
(b) Draw the network and form the Bus admittance matrix of the given table.
All the values are in P.U
Bus Code
Line impedance
Half line charging
Admittance
1- 2
1- 3
2 - 3
0.02 j0.08
0.08 + j0.24
0.06 + j0.18
0.06 + j0.18
0.00 + j0.01
0.00 + j0.02
0.00 + j0.02
0.00 + j0.025
0.00 + j0.03
2 4
3 4
0.01 + j0.03
Transient Reactance
Synchronous Reactance
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