Answer / balaji

In squarewave pulse the output contains more ripples.. But
in Pulse width modulation(PWM)the ripples in the output is
very less...

Answer / prava

both magnitude and frequency can be controlled by PWM
technique where as in square wave pulse the magnitude
depends on the input only frequency can be controlled

Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 Answers  

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SIR I AM GOING TO TAKE PART IN JINDAL ENTRANCE XAME OF 4TH OCT. PLEASE SEND ME SAMPLE QUESTIONS FOR THAT ON MY ID JITENDRA1603@GMAIL.COM

1 Answers  

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why the transformer neutral give to the earth ?

2 Answers   Jindal, JLL,

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What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

0 Answers  

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On what cycle does thermal power plant operate?

0 Answers  

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how to calculate fuse rating for a motor

1 Answers   JSW,

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what will happen at the time of CT saturation?and what will be the Relay's function at the time of CT saturation?

2 Answers  

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Can i use the B-curve MCB instead of C-curve MCB

0 Answers  

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Why generally the transformer primary is connected in star & secondary in delta

7 Answers  

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Name the instruments which run on DC?

2 Answers  

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Why Two Transformers aside shoud be supperated by concreted wall?

5 Answers  

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why transformer rating is mentioned in kva?

1 Answers   JK Electric Works,

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