Answer Posted / vasudevan

In APFC panel delay timer is used to add the capacitors in
steps. Based on the reactive power factor and export power
factor requirement, capacitors are added as per the time
delay.

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

1898

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Assuming that a dedicated neutral earthing transformer is provided for each GT generator, when the two generators are running in parallel, has consideration been given that the earth fault current from one generator stator winding be split between the two neutral earthing transformers? If so, what adverse impact will this have on the operation of the 59N and 27TN devices?

1611

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what is the VA(Volt-amphere)? define with calculation?

1220

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please send me latest & previous years question papers for IOCL Technical level questions

1828

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What are the two types of compensation?

1043

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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

2091

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what is the use of the puls transformer in UPS & how it works???????????

2165

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What is lifting power for 1 wb/m2 and 1 A magnet?

2140

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what is the difference between vector scale and vector diagram?

4369

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How can find thermal state value in relay for calculate thermal overload.

1855

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what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

2228

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What is resolver and glass scale in CNC how they work?

2229

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What does the term “voltage regulation” means?

1030

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what is the minimum voltage require to injure our body?

6736

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Explain how you decide what size of electrical wire do you need?

1064

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