Answer Posted / vishvesh

Power factor is a cosine angle between voltage and current.
if it is more than 1.0 then it is considered as leading
power factor. and if it is less the 1.0 then it is
considered as lagging power factor.

How many types of instrument cables are there?

1090

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why do we use 25kv supply for traction purpose?

1901

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State kirchoff current law?

1075

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which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

2039

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what is the minimum voltage require to injure our body?

6898

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Efficient electrical earthing in hard rock area

1557

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What is thresh hold value of current?

2156

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give single line diagram of D.G distribution form alternator to main L.T panel?

7555

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what is the difference between directional & non directional earth fault with example please explain.

1845

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when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you

1792

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how does the terminal voltage of transmission lines increase when a capacitor is connected???? This happens not only in transmission lines but also in all circuits. How??? When a capacitor is connected in a transmission line, capacitor also takes energy from the same supply. But how is it able to increase the terminal voltage??? Practically What sequence of events happen during increase in voltage???

2169

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why high speed tripping relay will be used in tripping circuit why not normal relay

1359

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diameter of cable and core is doubled then the value of capacitance is

4288

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what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line

3283

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how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

2250

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