Use mesh current analysis to find the phasor currents. Vl = 12020° V ... ... .... .. .... ... ... ... ... R1 R2 200 R3 300 300 L1 ... L2 ... .... 140: L3 120 .. 110 ... . ... ... ..

Discuss the concept of Smart Grids in power systems. How do Smart Grid technologies improve grid reliability, efficiency, and the integration of renewable energy sources?

4.10 A dc-dc converter is connected to a 100 V d.c. source to supply an inductive load having 40 mH in series with 5 2 resistance. FWD is placed across the load. Load current varies between two limits of 10 A and 12 A. (a) Find the time ratio (duty cycle) and the frequency of the chopper. (b) Find the equivalent Thevenin resistance across the source and determine the average source current.

NOTE: Polar form for Voltage & Current. Rectangular form for Impedance     Find the total impedance of the circuit, total power (apparent) delivered by the current source, Draw the phasor diagram of the voltage and current at the source, the current passing through the R2 and L1 branch, Draw the phasor diagram of the voltage and current at the R2 and L1 branch. Also, is the circuit inductive, capacitive, or neither (resistive)?

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Find the total impedance, voltage drop on the 100-ohm resistor, draw the phasor diagram of the voltage and current at R1, total power (apparent) delivered by the current source, draw the phasor diagram of the voltage and current at the source. Also, is the circuit inductive, capacitive, or neither (resistive)?   please give the step-by-step solution NOTE: Polar form for Voltage & Current. Rectangular form for Impedance