Solutions to the figure below are calculated using various Network Theory Methods. Match a value to the requested current (A), voltage (V) pr Power (W)

The neutral current is equal to three times of ....... sequence current.

Draw a 5-stage cascaded voltage multiplier circuit for the generation of HVDC and explain the construction & working principle.

Give a brief introduction about the topic of generation and measurement of direct current voltage...(if possible for 2 pg or 1 pg) high voltage engineering subject..

(c) A buck converter, as shown in Figure Q3(i) below, is working in steady state. The output voltage and the inductor current can be assumed to be ripple free. Figure Q3(ii) shows the inductor voltage VL during a complete switching interval. Assuming all devices are ideal, determine (i) The output voltage, input voltage and the duty cycle of the buck converter. (ii) The inductor value required to maintain a peak-to-peak ripple current of 0.4A, if the switching frequency is 100kHz. V. M 30V 本D c+ v. TON TOFF 20V Ts (i) (ii) Figure Q3. (i) Equivalent circuit of a buck converter and (ii) inductor voltage over one complete cycle.

which the voltage regulation is maximum and the value of this regulation.

Use Kirchoff's Voltage Law to write an expression for the LED circuit. Be sure to include V, I, R and VLED: If you use a 220 ohm resistor in the circuit and the typical table value for LED voltage, what would be the LED current? Is this an appropriate current? Why or why not?

(b) A single-phase full converter charges a battery which offers a constant value of E. A resistor R is inserted to limit the battery charging current. Derive an expression for the average charging current. Find the value of R in case of battery charging current is 6 A, supply voltage is 40 V, 50 Hz, E=12 V and voltage drop in conducting SCR is 1 V determine: (i) Power dissipated in R (ii) Supply power factor

The volt–ampere characteristic of a certain two-terminal device is a straight line that passes through the points (2 V, 5 mA) and (3 V, 15 mA). The current reference points into the positive reference for the voltage. Determine the equivalent circuit for this device.

ii)Rhs= 1.325 ℃/w