i want prepare power grid exam what are book we want refer
for electrical ?

Answer Posted / vijay

sir from where i get the model paper of this exam.?

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

1318


I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

1554


Please brief me about number of pole in alternator.In single phase alternator coils are connected in star or series. How to calculate frequency for the same.

1529


Why corona leads to production of Ozone and glow of the color VOILET?

1591


1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

1691






WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM

1640


what is transient enclosure vltage , very fast transients, very fast transient over voltages

1736


In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

1594


for a 400kv t/m line with 10 ampere current will corona occur?

1784


what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?

1695


What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

1243


I completed iti in2004 I was worked in A grade contractor can I get c licence

1363


Show the schematic arrangement of diesel power station layout and give its principle of operation.

2666


What is a Phase shift meter? Where can I get one?

1770


What are high pass filter and low pass filter? and What are the flowmeter ?

1631