Assignment -1, Power System Analysis-2, Year-III, Part-I,
BEL-2069
Last date of submission: 4th
December 2014
Q1. Find the admittance matrix for the system. Its given that
all the lines are characterized by a
series impedance of 0.1+j0.7/Km and a shunt admittance of
j0.35*10-5 /km. Lines are rated at
220kV and 100MVA. Use nominal - method for transmission line
representation.
Q2. For the network given below, obtain node equations and then
form admittance matrix
(Ybus). All impedances and voltages are marked in pu.
Q3. Figure 1 shows single diagram of a practical three bus
system connecting Pokhara
substation. Transmission line uses bear conductor which has
resistance of 0.11/km and
diameter of 23.45mm. These lines are connected using single
circuit tower whose dimensions are
given in fig. 2. Derive the admittance matrix of this 3 bus
system. Lines are rated at 132kV and
100MVA. Use nominal - method for transmission line
representation.
