Answer Posted / ms.gayathri

The rating of transformer is always not in multiples of 11
i.e., the voltages are only in multiples due to the form
factor. Form factor is nothing but the physical size and
shape of a device. Which is approximately 1.11 derived from
the ratio between RMS value and Average value of the sine
waveform(analog).

What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2372

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i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,

1665

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HOW DO I CALCULATE THE SETTINGS FOR THE DIFFERENTIAL PROTECTION OF A 12kV/6.6kV, 6MVA,DYN11 XMER WITH PRIMARY SIDE CTR 400/1 AND SEC SIDE CTR 600/1?

2676

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I want to do a mini project. Now I'm studying in 6th semis tor EEE Engineering.

2202

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Why do power lines not short out when they fall into water?

2046

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Can any body tell gulf interview question for experienced electrical engineer ?

2158

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should %impedance be high or low in a power transformer? if so why?

1995

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hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

2200

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How I calculate the ELCB for circuit breakers?

2229

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what is KA rating and how can we choose switchgears on applications

1502

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for compensate 315mh inductance ,how many capaciance required?

2122

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what is meant by k-rating in isolation transformer?what is k9, k14 stands for?

2828

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what are the usual topology of transformers at different substations in the power system and why that particular topology is choosen. what are the limitaions of that topology?

2167

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Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.

2177

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What is measurement?

1239

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