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Electrical Engineering Interview Questions

what is active power and rective power and power factor

1880

why a pilot exciter is used in combination with the main exciter? why not only a main exciter is used for excitation to an alternator?

2519

what will happen, if both relay contact has live supply, and coil of relay activated

AVS,

1636

What will happend if given Vfd out put to step up transformer

864

Why phase sequence ryb called colours.

2851

If NO contact of relay gets supply from other sources or other part of circuit and at a time relay coil activates,then current will flow in which direction & will it cause to damage relay??

1208

i need about 10 years of GATE solved papers in pdf format and even mock tests toooo

837

What is the RME and explain the full form and what is the RME work?

JLL,

1447

AC covered area by ton calculation

1801

What is a current transformer?

KEPL,

1900

how to reduce the co level in your 1000kva dg set side?

1802

what is interfacing in computer studies?

864

150 hp moter how many kwh in 1 hour and what forfula 3 phase kwh.

3496

Specify the crystal frequency required for an 8085 system to operate at 1.1MHz

5092

How much ampere can withstand for 2sq mm c able?

2311

Un-Answered Questions { Electrical Engineering }

1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

1118

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

1250

What Is Connection APFC Panel In Compony.

561

how to determine Sq.mm size of finolex power cables.

1145

How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........

1450

How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?

1190

sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

560

Best way to measure the Soil resistance of rocky soil, three probe method and four probe method

1025

what is the minimum voltage require to injure our body?

4463

Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.

1165

how to calculate fault level?

1213

how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???

1034

hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

2083

what is is the potential diffrence between two phase ?

4259

We have two parts in generator, electrical & mechanical. how it works?

1127