Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between grounding & earthing?

9 20556

How to specific gravity of battery will check, i didnt saw any hydrometer. & say me how to dip into the battery what are the specifications are given in the hydrometer?

1 3499

What is the d/f between DOL & star delta starter & automatic star delta starter?

ACC, Dalkia, Engineering, Indeco, NINL, Novotel, RMH Control Systems, Wipro,

23 158141

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

Indeco,

5594

How LT megger works ?

1693

some times voltage does not built in small generators why ?

2 3572

what is the effect of power factor on DG supply,i mean to say what will the effect if we add capactors on dg supply.

HCL,

4 6914

What is the effect if power factor is above 1 or unity.

NTS,

15 45520

what is the effect if we add capacitor on DG supply, it has any loss or benefit.

6 11275

what is the difference between upper impedance and lower impedance distance relay?

Havells, Power Grid,

3 9934

whate is the meaning of balance/unbalance,in stabilizers type

TCS,

1661

what is the highest transmission voltage in india???

Bhel, EIPL, Engineering, Jindal,

49 47353

what is the application of dynamic Breaking resistor in inverter ? & How it works ?

2 6235

if 15 kv is grounding directly what will happen?

5 9129

how the works electronic energy meter?

Bhel,

1666


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Un-Answered Questions { Electrical Engineering }

What is the distance between each insulator in 33kv transformer and how can it calculate

1762


i want to know that how the height of Ct ,cvt ,LA calculated on the basis of creepage distance

2051


How to back charge the Gas turbine generator

1619


hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.

2337


which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured

1061






How can I known multiplying factor .without multiplying table

1357


Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

1500


Name two types of electrical analogous for mechanical system.

729


what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2023


why incomer bay is required before transformer bay if there are more than 1 nos. of transformer bay.

2625


Why air circuit breaker off due to power failure?

712


What's the difference between non break power supply and non break non short break power supply

1028


What are the function of different components of servo motor?

1557


Explain Energy and Power signals?

1282


Atwhat condition reverse power relay will act?

1801