LAB2_Alvaro_Grijalva_5495568

Q-3 A Cockcroft-Walton type voltage multiplier has ten stages with capacitances, all equal to 0.1 µF. The supply transformer secondary voltage is 100 kV at a frequency of 60 Hz. If the load current to be supplied is 5 mA, find (a) the percentage ripple, (b) the regulation, and (c) the optimum number of stages for minimum regulation or voltage drop.

Q-2 A Cockcroft-Walton type voltage multiplier has Seven stages with capacitances, all equal to 0.3 µF. The supply transformer secondary voltage is 150 kV at a frequency of 100 Hz. If the load current to be supplied is 3 mA, find (a) the percentage ripple, (b) the regulation, and (c) the optimum number of stages for minimum regulation or voltage drop (d) the maximum output voltage.

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Full calculation with any assumption needed. All sub questions please as it is all related.

Q3) A single-phase bridge-type Cycloconverter has input voltage of 230V and 50Hz and load of R-1012. Output frequency is one-third of input frequency. For a firing angle delay of 30° Step up a) Draw the circuit and explain the operation of the Cycloconverter 4th b) Derive an expression for output voltage c) Calculate (1) RMS value of output voltage (2) RMS current of each converter (3) RMS current of each thyristor and (4) input power factor.

Please answer all subparts for like either dislike is ready.. Please all subparts in short..

High voltage

by High Voltage

Quiq

Q1. Describe the following related to Current Transformer (CT): (i) Draw the equivalent circuit diagram of CT and develop the corresponding phasor diagram. Draw the transient response of CT and describe the transient errors in a CT. [5] [5] (ii)

(02) DC Si Diode Circuit. (Course: Electronic Devices and Circuit Theory) What is the minimum value for RL needed to turn Zener diode ON?, And what is the maximum value for RL needed to turn Zener diode is ON? -Use Equation Operators or write it down on paper/digital paper. -Redraw and Apply. -You can add //comments for a better understanding. -Please answer without abbreviation. -Make it clean and clear typing/writing. Thank you.

A voltage multiplier has 12 stages Capacitances, all equal to 0.08 μF. Thesupply transformer secondary voltage is 150 kV at a frequency of 100 Hz. Load current 0,006A.What is the percentage ripple, the regulation and the optimum number of stages for minimumregulation or voltage drop.

Fill the blanks with suitable following terms (AND gate, Potential Transformers (PT), cathode ray oscilloscope CRO, electronic switch Current Transformers (CT), DC component, cathode ray tube (CRT), AC component, electron.gun. 1.The heart of a ............is the................. the electron beam is generated, accelerated, and deflected in accordance with the input signal. 2. Power measurements in high-voltage high current circuit can be effectively done by the use of...and.. ...in conjunction with conventional wattmeter. 3. The sig ...ose frequency is to be measured is converted into a train of pulses (Using Comparator for example), one pulse for each cycle of the signal and applied continuously to an...A 4. In Average Responding Voltmeter, the AC signal is first applied to the blocking capacitor used at the input to block any..................in the input voltage. 5. Dual Trace Oscilloscope This CRO has a single.....................whose electron beam is split into two by an…

Q2) single-phase bridge-type cycloconverter has input voltage of 230V and 50Hz and load of R=102. Output frequency is one-third of input frequency. For a firing angle delay of 30°, (a) Draw the circuit, (b) Calculate RMS value of output voltage (c) Calculate RMS current of each converter (d) input power factor.

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Give the meaning of each acronym of solid state devices. Also sketch the schematic symbol for each device. SUS Shockley diode D-MOSFET JFET SCR DIAC THYRISTOR Device TRIAC 1. 3. 4. 6. 8. 10. 12. 14. Symbol 2. 5. 7. 9. 11. 13. 15. Meaning No entry

A single-phase to single-phase cycloconverter "bridge type" with input voltage and frequency 150V and 50Hz. respectively. The output frequency is 10Hz and the firing angle equal to 45". The load is resistance with the value of 10 in series with reactive inductance of the value of 20mH. Assume the extinction angle equal 180°. a. Draw the waveforms output voltage, output current, source current, the thyristors currents (ir1, ir3, ir1, andir 3) b. Calculate the rms of output voltage. c. The rms current of each thyristor. d. The input power factor

Produce a working circuit with the Integrated Circuits shown in the image.

(5) Primary AC Source Transformer Secondary AC/DC Full-wave Rectifier Capaictor in Non- linear Load Figure 6 Analyse different methods of harmonics mitigation to eliminate the harmonic, which you have identify in above power system circuit. You can use harmonic filters, K or equivalent transformers or oversized neutral method depending upon the harmonic sources.

Power Electronics

There are 144 fuel cells are joined in a series through interconnects.there will be 4 stacks having 36 cell in each stack.these stacks are then oragnised in series and parallel combination to form a single module to deliver required voltage and output power.this SOFCs module then combined with CHP system to get thermal . From this data answer the following questions. a)Calculate voltage losses of module?.this question is very compulsory. b)Electrical efficiency of module? C)Thermal efficiency when module combine with CHP system? D)Combined electrical and thermal efficiency? The input parameters of single cell are given below: Ocv=1.020 Current density=2250mA/cm2 Power density=850mw/cm2 Cell active area= 121cm2 Net power=15kw System fuel utilization=80% Operating temp=550°c Cell voltage=0.8v Power of single cell=103 watt.

Draw and explain the scheme illustrating the principle of a transformer voltage U2 regulation (OLTC).

The rating of current transformer is given as 200/5A 5P10 20VA. Assume that the secondary resistance of the CT is 0.12 O. Calculate the following values when the accuracy limit factor is 24. (i) New accuracy current limit, (ii) New secondary impedance, (iii) New burden in VA

Design a DC power supply using FWR to perform the following requirements. Find V_dc, V_rms, V-ripple, PIV of the diode. draw the waveform of (V_in, V_out, L_in, I_load, V_diode and I_diode). Input voltage = 25 Transformer turn ratio 0.1 load resistance = 1k ohm Ripple factor = 0.025 Diode type =Si

Discuss the importance of voltage regulation in power systems.