What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?

0 Answers  

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how much insulation resistance 11kv & 33kv under ground cable between earth to phase & phase to phase.

4 Answers   Siemens,

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What are the different methodes for calculating the short circuit Current?

0 Answers   Equate,

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what is the means of dedicate earthing?

2 Answers  

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how percentage impedence effect on the size of the power transformer?

2 Answers   Bhel,

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What are the two types of transistor and how they are made?

2 Answers  

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why v use only sodium bulb or orange color lights on streets, y nt CLF OR TUBE LIGHTS

3 Answers  

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Piezoelectric materials serve as a source of:- A. Microwaves B. Ultrasonic waves C. Musical waves D. Resonant waves

3 Answers  

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what is the meaning of Ring Mean Unit in a substation or trasformer also tell me its oerpuse?

4 Answers   NPTC, NTPC,

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How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?

0 Answers   npcc,

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why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

2 Answers  

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How to calculate the efficiency of Turbo Generator(Alternator) in general....?

0 Answers   Thermax,

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