Given a power system with the following data Transmission Line Data (values in p. u.) From Bus To Bus R X Tot. Charging
1 2 0.000 0.500 0.000
1 3 0.000 0.333 0.000
1 4 0.000 0.500 0.000
2 3 0.000 0.250 0.000
4 3 0.000 0.400 0.000
a) Write down the Ybus matrix
b) How would Ybus change with a capacitor Q

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k