Difference between ac parallel circuit and ac series circuit?

0 Answers  

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why we use star connection on the primary side of a transformer?

5 Answers   DRDO, TCE,

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what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?

2 Answers  

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How to make vector group test of transformer?

2 Answers  

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Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

44 Answers   Akona Engineering, Bhel, BSES, Cranex, DRDO, JCB, NTPC,

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Why synchorised generators are used for the production of electricity?

0 Answers  

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Impedance relay is directional relay or non directional relay?

2 Answers   KSEB, NTDC,

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Our Alternator nameplate specifies a power factor of 0.8. When the Alternator is on light load, the bus bar voltage rises to 11240 volts, whereas the standard value is 10500 volts. Is it ok to increase the power factor to 0.85 or 0.9. I am afraid because the power factor on the name plate is only 0.8 ?

3 Answers   Escube,

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at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)

0 Answers   Ebrahim Textile, Siemens,

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If ac voltage applied to the field of dc generrator the output of dc generator ?

1 Answers   SSC,

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WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers  

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In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

0 Answers  

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