GATE EE 2003 | Inverters Question 25 | Power Electronics

GATE EE 2003

MCQ (Single Correct Answer)

-0.6

An inverter has a periodic output voltage with the output waveform as shown in figure GATE EE 2003 Power Electronics - Inverters Question 18 English

GATE EE 2003 Power Electronics - Inverters Question 18 English

With reference to the output waveform given in figure, the output of the converter will be free form $${5^{th}}$$ harmonic when

$$\alpha = {72^ \circ }$$

$$\alpha = {36^ \circ }$$

$$\alpha = {150^ \circ }$$

$$\alpha = {120^ \circ }$$

GATE EE 2002

MCQ (Single Correct Answer)

-0.6

Fig. $$(a)$$ shows an inverter circuit with a $$dc$$ source voltage $${V_{s}}$$. The semiconductor switches of the inverter are operated in such a manner that the pole voltages $${V_{10}}$$ and $${V_{20}}$$ are as shown in fig.
Fig. $$(b).$$ What is the rms value of the pole-to-pole voltage $${V_{12}}$$: GATE EE 2002 Power Electronics - Inverters Question 20 English 1

GATE EE 2002 Power Electronics - Inverters Question 20 English 1

GATE EE 2002 Power Electronics - Inverters Question 20 English 2

$${{{V_s}\phi } \over {\pi \sqrt 2 }}$$

$${V_s}\sqrt {{\phi \over \pi }} $$

$${V_s}\sqrt {{\phi \over {2\pi }}} $$

$${{{V_s}} \over \pi }$$

GATE EE 2001

MCQ (Single Correct Answer)

-0.6

A single - phase full-bridge voltage source inverter feeds a purely inductive load, as shown in figure. when $${T_1},{T_2},\,\,\,\,\,{T_3},{T_4}$$ are power transistors and $${D_1},{D_2},\,{D_3},{D_4}$$ are feedback diodes. The inverter is operated in square-wave mode with a frequency of $$50$$ $$Hz.$$ If the average load current is zero, what is the time duration of conduction of each feedback diode in a cycle? GATE EE 2001 Power Electronics - Inverters Question 21 English

GATE EE 2001 Power Electronics - Inverters Question 21 English

$$5\,\,m\,\,\sec $$

$$10\,\,m\,\,\sec $$

$$20\,\,m\,\,\sec $$

$$2.5\,\,m\,\,\sec $$

GATE EE 2000

MCQ (Single Correct Answer)

-0.6

A three phase voltage source inverter supplies a purely inductive three phase load. Upon Fourier analysis, the output voltage waveform is found to have an $${h^{th}}$$ order harmonic of magnitude α h times that of the fundamental frequency component $$\left( {{\alpha _h} < 1} \right),$$ the load current would then have an $${h^{th}}$$ order harmonic of magnitude

zero

$${{\alpha _h}}$$ times the fundamental frequency component

$${h{\alpha _h}}$$ times the fundamental frequency component

$${\raise0.5ex\hbox{$\scriptstyle {{\alpha _h}}$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle h$}}$$ times the fundamental frequency component