Answer / sandeep das

An Inverter is used to control the speed of the compressor motor, so as to continuously regulate the temperature. It improves the COP & EER of an AC.

Answer / keval mistry

function of inverter is to convert dc power into ac power.
and to do that various type os switching device like scr or igbts or MOSfets are used. and their switching can be controlled with the gate pulse so we can get desired sine wave as an output.

what is servo motor and how to work it.

0 Answers  

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mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....

0 Answers   IFFCO,

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what is a power factor?

0 Answers   MPWU Kiribati, Thermo,

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why transformer rating is expressed in kva.

4 Answers   Electrosteel, L&T,

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What is ONAN/ONAF1/ONAF2 for transformer cooling

5 Answers  

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i) in which cases should we go for neutral and where should we go for ground? ii) in domestic supply we are getting 230v a.c.and what is the amount of current?

2 Answers  

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Why VL is more than the Vc?

2 Answers  

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calculation of knee point voltage of current transformer?

2 Answers   TATA,

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What are the application of Under voltage release?

2 Answers   Techno Electric and Engineering,

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What is meant by transformer, why it should be used, with out that equipment what happens if we transformed the supply?

12 Answers   Bhel,

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why do we use 25kv supply for traction purpose?

0 Answers   Bhel,

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Why not instal the NGR in 11kv/433kv trasformer?

3 Answers  

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