Write MATLAB code for "a" and "b"

Objective: "Transient generated due to switching over voltage" a) Over voltage generated due to disconnection of unloaded transformer. b) Over voltage generated due to capacitance switching. c) Generation of HVAC using cascade transformers. Software Used: MATLAB (R2009a) Theory: The insulation has the lowest strength for switching surges with regard to long air gaps. Further, switching over voltages are of relatively higher magnitudes as compared to the lightning over voltages for UHV systems. Over voltages are generated in EHV systems when there is a sudden release of internal energy stored either in the electrostatic form (in the capacitance) or in the electromagnetic form (in the inductance) a) Over voltage generated due to disconnection of unloaded transformer. isolation transformer circuit breaker